$Id$ STDCXX - Apache C++ Standard Library 4.1.3 (based on Rogue Wave(R) C++ Standard Library 4.1.3) --------------------------------------------------- i. Disclaimer ------------- STDCXX is an effort undergoing incubation at the Apache Software Foundation (ASF), sponsored by the Apache Incubator PMC. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF. 0 Index -------- Index ............................................................ 0 Contents ......................................................... 1 Requirements ..................................................... 2 Unpacking Instructions ........................................... 3 Directory Structure ...............................................4 Source Directory Structure ................................... 4.1 Library Files ................................................ 4.2 Library Utilities ............................................ 4.3 Locales ...................................................... 4.4 Test Suite Files ............................................. 4.5 Examples and Tutorials ....................................... 4.6 Build Directory Structure .................................... 4.7 Library Build Instructions ....................................... 5 VisualStudio Setup Instructions .............................. 5.1 Library Installation ............................................. 6 Test Suite Build Instructions .................................... 7 VisualStudio Test Suite Build Instructions ................... 7.1 Library Configuration ............................................ 8 Header config.h .............................................. 8.1 Headers rw/_config.h and rw/_defs.h .......................... 8.2 Configuration Macros ......................................... 8.3 Platform Identification Macros ........................... 8.3.1 Compiler Configuration Macros ............................ 8.3.2 Runtime Library Configuration Macros ..................... 8.3.3 C Library Configuration Macros ........................... 8.3.4 Macros Controlling Strings ............................... 8.3.5 Macros Controlling Iostreams ............................. 8.3.6 Macros Controlling Locale ................................ 8.3.7 Macros Controlling Implementation Properties ............. 8.3.8 Other Configuration Macros ............................... 8.3.9 Macros Controlling Extensions ........................... 8.3.10 Library Organization ............................................. 9 Organization of Headers ...................................... 9.1 Organization of Sources ...................................... 9.2 Platform Notes .................................................. 10 Apogee C++ .................................................. 10.1 Borland C++ ................................................. 10.2 Comeau C++ .................................................. 10.3 Compaq C++ .................................................. 10.4 EDG eccp .................................................... 10.5 GNU gcc ..................................................... 10.6 HP aCC ...................................................... 10.7 IBM VisualAge C++ ........................................... 10.8 Intel C++ ................................................... 10.9 KAI C++ .................................................... 10.10 Metrowerks CodeWarrior ..................................... 10.11 Microsoft MSVC ............................................. 10.12 SGI MIPSpro ................................................ 10.13 Siemens CDS++ .............................................. 10.14 Sun C++ .................................................... 10.15 1 Contents ----------- This file is part of the STDCXX distribution of the Apache C++ Standard Library. The distribution consists of this file and a compressed (gzipped) tar file containing the header and source files comprising the Rogue Wave implementation of the C++ Standard Library, the configuration mechanism required to characterize the platform on which the library is to be built, and a set of scripts and makefiles to build the library. Optionally, the distribution may also contain the Apache C++ Standard Library test suite, a set of examples demonstrating the use of the library, plus scripts and makefiles to build and run the test suite and the examples. The audience targeted by this document is library maintainers, developers, and those porting the library to new platforms. The purpose of the document is to describe in detail the process of unpacking, configuring, building, and testing the library. 2 Requirements --------------- The following utilities are required in addition to the standard set of POSIX utilities in order to unpack and build the library, test suite (*), and examples (*) on a UNIX system. * Where available. o GNU gunzip o GNU make, version 3.70 or later (referred to as gmake here) o GNU gcc, version 2.95.2 or later, or o EDG eccp 2.42 or later, or o Comeau C++ 4.2.42 or later, or o HP aCC 3.13 or later for PA-RISC, or o HP aCC 5.36 or later for IPF, or o Intel C++ 7.0 or later for Linux/IA32 or IA64, or o Compaq C++ 6.2 or later for Tru64 UNIX, or o IBM VisualAge 5.0 or later for AIX 4.3 or later o SGI MIPSpro 7.3 or later for IRIX o Sun C++ 5.3 or later for SunOS 5.6 or later 3 Unpacking Instructions ------------------------- To unpack the tarball, execute the following command: $ gunzip -c stdcxx-incubating-X.Y.Z-YYYYMMDD.tar.gz | tar -xf - Above, X, Y, and Z are the major, minor, and micro version number of the library, respectively, and the optional -YYYYMMDD part is the date of the snapshot. The date part of the file name will be missing if the tarball is a final release rather than a snapshot. The script above will expand the tarball and create a single directory named stdcxx-X.Y.Z-YYYYMMDD/ (with the date part possibly missing). This directory is referred to a ${TOPDIR} throughout the rest of this document. 4 Source Directory Structure ----------------------------- The infrastructure described in this document expects that source files and any support scripts are organized in a directory tree described below. If the files are arranged otherwise you will need to move them to the expected directories in order to accommodate this requirement and use the infrastructure. The shell script fixtree.sh that resides in the config/ subdirectory can be used to create the required directory structure from the alternate structure (not described here). ${TOPDIR}/GNUmakefile master makefile +- etc/ | +- config/GNUmakefile.* makefiles | | | /*.config compiler config files | | | /fixtree.sh directory tree configuration | | | script | | | /makefile.* common definitions and rules | | | /runall.sh testsuite run script | | +- src/ configuration sources and | | | scripts | | +- windows/generate.wsf solution generation script | | /configure.wsf configuration script | | /build.wsf solution build script | | /makelog.wsf log creation script | | /runall.wsf testsuite run script | | /*.js utility scripts | | /*.config compiler config files | +- nls/ locale definitions and | | charmaps | +- charmaps/ character set description files | +- src/ locale definition files +- examples/ set of examples and tutorials | +- include/*.h common example headers | +- manual/*.cpp example sources | +- tutorial/*.cpp tutorial sources +- include/* public library headers | +- ansi/* C++ C library headers | +- loc/_*.{h,c,cc} private locale headers | +- rw/_*.{h,c,cc} other private library headers +- src/*.cpp library sources +- util/*.{h,c,cc,cpp} utility headers and sources +- tests/ test suite files | +- include/*.h common test headers | +- */*.cpp test suite sources +- ../rwtest test suite infrastructure +- rw/ | +- rwtest/*.h test suite infrastructure | headers +- src/*.cpp test suite infrastructure sources 4.1 Library Files ------------------ The public interface to the library consists of the following header files specified by the C++ International Standard: +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ || | | | | +------------+------------+------------+------------+------------+ These header files are contained in the ${TOPDIR}/include/ directory. Some of them have corresponding .cc and .c files in the same directory. Those are private files that contain definitions of out of line template functions, member functions of class templates, or static data members of class templates. The facilities of the Standard C library are exposed via the following header files (along with their deprecated forms, i.e., files having the same name except for the leading letter 'c' and the .h suffix) contained in the ${TOPDIR}/include/ansi/ directory: +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ | | | | | | +------------+------------+------------+------------+------------+ Any other header files not mandated by the C++ Standard are contained in the include/rw/ or include/loc subdirectories. Their names start with an underscore, to prevent potential clashes with any user headers, and end in a .h suffix. Some of them may have corresponding .c and .cc files. In addition to header files, the library consists of a set of private source files. Source files may have a .cpp, .s or .S extension (for C++ or assembly source, respectively) and are contained in the src/ subdirectory of the library source tree. 4.2 Library Utilities ---------------------- Two utility programs are provided in complete source form with the library sources: locale and localedef. The header and source files for these utilities are contained in the ${TOPDIR}/util/ directory. The localedef utility is used to build locales from locale definition files and character set description files. Locales generated by the utility can be read by the locale utility and used by the Apache C++ Standard Library's localization library. 4.3 Locales ------------ Locale definition files suitable for processing by the localedef utility are provided in the ${TOPDIR}/etc/nls/src/ directory. Character set description files that accompany the locale definition files are provided in the ${TOPDIR}/etc/nls/charmaps/ directory. These files are copies of those distributed with GNU libc 2.2. 4.4 Test Suite Files --------------------- The test suite consists of a set of two components: a test driver library, rwtest, and a set of headers, in ${TOPDIR}/tests/include/, and many source files, in several subdirectories under ${TOPDIR}/tests/. Each test program links with the test driver library which contains code for command line processing. When run, tests produce output files which can be read and analyzed by the run_all.sh script found in the ${TOPDIR}/etc/config/ directory. The script presents the test results in a tabular format. For more information refer to the script's help output. 4.5 Examples and Tutorials --------------------------- A set of example and tutorial files may be provided under the ${TOPDIR}/examples/ directory, in subdirectories manual/ and tutorial/. Most but not all example programs expect input and produce output. Sets of input and output files are provided in the in/ and out/ subdirectories, respectively. 4.6 Build Directory Structure ------------------------------ The directory tree created and partially populated by the master makefile, ${TOPDIR}/GNUmakefile, has the following structure (the -> symbol indicates a symbolic link from the file on the left to the one on the right): ${BUILDDIR}/GNUmakefile -> ${TOPDIR}/GNUmakefile | /makefile.in | /makefile.common-> ${TOPDIR}/makefile.common | /makefile.rules -> ${TOPDIR}/makefile.rules | /run -> ${TOPDIR}/etc/config/runall.sh +- bin/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.bin | /*.{o,...} binaries and temporary files | /.depend/*.d dependencies +- examples/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.exm | /run -> ${TOPDIR}/etc/config/runall.sh | /*.{o,...} binaries and temporary files | /.depend/*.d dependencies +- include/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.cfg | /config.h generated config header | /*.{o,...} binaries and temporary files | /.depend/*.d dependencies +- lib/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.lib | /*.{a,o,so,...} binaries and temporary files | /.depend/*.d dependencies +- nls/* -> binary locale files +- rwtest/GNUmakefile.rwt->${TOPDIR}/etc/config/GNUmakefile.rwt | /*.{a,o,so,...} binaries and temporary files | /.depend/*.d dependencies . . ...test suite directories are optional... . +- plumhall/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.ph | /*.{d,o,...} binaries and temporary files +- tests/GNUmakefile -> ${TOPDIR}/etc/config/GNUmakefile.tst /*.{o,...} binaries and temporary files /.depend/*.d dependencies 5 Library Build Instructions ----------------------------- To build the library, test suite (*), and examples (*), perform the following steps: (* Where available.) o $ cd stdcxx-X.Y.Z-YYYYMMDD/ $ ls # this is ${TOPDIR} GNUmakefile etc examples include src tests If your distribution does not contain the test suite and/or the examples, the output will look like so: $ ls # this is ${TOPDIR} GNUmakefile etc include src o $ gmake BUILDDIR= \ [ BUILDTYPE= \ | BUILDMODE= ] \ [ CONFIG= ] is the pathname of the build directory where you want to perform the build; the directory will be created (as will all its required subdirectories) this is a required argument is one of { 8s, 8d, 11s, 11d, 12s, 12d, 15s, 15d, 8S, 8D, 11S, 11D, 12S, 12D, 15S, 15D } The numeric part of determines the presence or absence of support for debugging, whether optimization is or isn't enabled, and the thread safety level of the library, as follows: -- optimization enabled: even numbers (i.e., 8 and 12) -- debugging enabled: odd numbers (i.e., 11 and 15) -- thread safe code: 12 and 15 The single letter following the numeric part of determines whether an archive or shared library is built, and whether narrow (32-bit) code or wide (64-bit) code should be generated: -- s and S implies an archive library -- d and D implies a shared library -- lowercase letter implies narrow (32-bit) code -- capital letter implies wide (64-bit) code The argument is optional. When not specified a build type of 11s is assumed. is a comma-separated list of keywords describing how to build the library and the rest of the binaries. The following arguments are recognized: dcethreads - create a thread-safe library, use DCE threads debug - include debugging information optimized - optimized pthreads - create a thread safe library, use POSIX threads shared - create a shared library (archive is default) shared,archive - create an AIX shared archive threads - create a thread-safe library, use Solaris threads wide - generate wide (64-bit) code Note that exactly one of BUILDTYPE and BUILDMODE must be defined. name (not pathname) of a config file containing compiler options; the available configuration files are: acc.config - for HP aCC como.config - for Comeau C++ eccp.config - for EDG eccp gcc.config - for gcc icc.config - for Intel C++ on Linux mipspro.config - for SGI MIPSpro osf_cxx.config - for Compaq C++ reliant_cds.config - for Siemens CDS++ sunpro.config - for Sun C++ vacpp.config - for IBM VisualAge C++ and XL C/C++ this argument is optional, the default is gcc.config o Example: $ gmake BUILDDIR=/tmp/g++-15d \ BUILDTYPE=15d \ CONFIG=gcc.config or equivalently $ gmake BUILDDIR=/tmp/g++-15d \ BUILDMODE=debug,shared,pthreads \ CONFIG=gcc.config This command will create a build directory rooted at ${BUILDDIR}, run the configuration scripts, and build a thread-safe shared library with debugging information included and debugging facilities enabled. If the build is successful, the library will be located in ${BUILDDIR}/lib/ and will be named libstd${BUILDTYPE}.so.X.Y.Z (libstd${BUILDTYPE}.a if building an archive). A symbolic link named libstd${BUILDTYPE}.so in the same directory will also be created pointing to the shared library. Public library headers are in ${TOPDIR}/include/ and its subdirectories, the generated config.h is in ${BUILDDIR}/include/. o To change preprocessor, compiler, or linker options you can either set the make variables CPPOPTS, CXXOPTS, and LDOPTS on the command line (recommended, except with HP aCC) or modify ${BUILDDIR}/makefile.in. The second option is recommended when compiling with HP aCC (as the compiler looks for environment variables with the same names). o To reconfigure and/or rebuild the library (perhaps after changing a preprocessor, compiler, or linker option), follow these steps: $ cd ${BUILDDIR} $ gmake -Cinclude [ config ] # configure $ gmake config # same $ gmake lib # build the library $ gmake examples # build examples $ gmake util # build utility programs $ gmake rwtest # build the test driver $ gmake tests # build tests $ gmake locales # build locale databases Alternatively, you can cd into the respective subdirectories and just type gmake: $ (cd ${BUILDDIR}/include && gmake) # configure $ (cd ${BUILDDIR}/lib && gmake) # build the library $ (cd ${BUILDDIR}/bin && gmake) # build utilities $ (cd ${BUILDDIR}/examples && gmake) # build examples $ (cd ${BUILDDIR}/tests && gmake) # build tests $ (cd ${BUILDDIR}/bin && gmake locales) # build locale databases Parallel builds (gmake -j[N]) are possible in any directory except for ${BUILDDIR}/include/. To remove intermediate files from the build directory, use one of the following commands: $ cd ${BUILDDIR} $ gmake clean # remove all object files $ gmake dependclean # remove .d files (dependencies) $ gmake realclean # remove all temporary files 5.1 VisualStudio Setup Instructions ------------------------------------ To generate a Microsoft VisualStudio solution (for .NET 2003 or 2005 only) follow the step below. o > CD stdlib-X.Y.Z-YYYYMMDD\stdlib > DIR /D # this is ${TOPDIR} GNUmakefile etc examples generate.bat include src tests If your distribution does not contain the test suite and/or the examples, the output will look like so: > DIR /D # this is ${TOPDIR} GNUmakefile etc generate.bat include src o > .\generate.bat /BUILDDIR: /CONFIG: is the pathname of the build directory where to create the solution and projects; the directory will be created (as will all its required subdirectories) this is a required argument name (not pathname) of a config file containing compiler options; the available configuration files are: icc-9.0.config - for Intel C++ 9.0 icc-9.1.config - for Intel C++ 9.1 msvc-7.0.config - for Microsoft Visual C++ .NET msvc-7.1.config - for Microsoft Visual C++ .NET 2003 msvc-8.0.config - for Microsoft Visual C++ .NET 2005 msvc-8.0-x64.config - for Microsoft Visual C++ .NET 2005 (x64 platform) msvcex-8.0.config - for Microsoft Visual C++ Express 2005 this is a required argument o Example: > generate.bat /BUILDDIR:C:\stdcxx /CONFIG:msvc-7.1 This command will create a build directory rooted at ${BUILDDIR}, the solution file ${BUILDDIR}\msvc-7.1\msvc-7.1.sln, the project files in directory ${BUILDDIR}\msvc-7.1\Projects, and batch file ${BUILDDIR}\build_msvc-7.1.bat. To build the library, test suite (*), and examples (*), perform the following steps: (* Where available.) o > cd ${BUILDDIR} o > build_msvc-7.1.bat [] is one or more of { 8s, 8d, 11s, 11d, 12s, 12d, 15s, 15d } The numeric part of determines the presence or absence of support for debugging, whether optimization is or isn't enabled, and the thread safety level of the library, as follows: -- optimization enabled: even numbers (i.e., 8 and 12) -- debugging enabled: odd numbers (i.e., 11 and 15) -- thread safe code: 12 and 15 The single letter following the numeric part of determines whether a static or dynamic library is built: -- s implies an static library -- d implies a dynamic library The argument is optional. When not specified a build type of 11s is assumed. o Example: > build_msvc-7.1.bat 15d run the configuration scripts, and build a thread-safe dynamic library with debugging information included and debugging facilities enabled. If the build is successful, the library will be located in ${BUILDDIR}\msvc-7.1\${BUILDTYPE}\lib\ and will be named libstd${BUILDTYPE}.dll (libstd${BUILDTYPE}.lib if building a static library). Public library headers are in ${TOPDIR}\include\ and its subdirectories, the generated config.h is in ${BUILDDIR}\msvc-7.1\${BUILDTYPE}\include\. Alternatively, you can run Microsoft Visual Studio IDE, open the generated solution file, select the desired solution configuration and invoke "Build"->"Build Solution" command. 6 Library Installation ----------------------- There is no automated way of installing the library binary or headers. To install, simply copy the library binary from ${BUILDDIR}/lib/ into the directory of your choice (e.g., /usr/local/lib) and copy the library headers (including any implementation .c and .cc files) from ${TOPDIR}/include/ and its subdirectories to the directory of your choice. Make sure to also copy the generated ${BUILDDIR}/include/config.h into one of the directories in your preprocessor's search path. When using locale databases, also copy the ${BUILDDIR}/nls/ directory to wherever appropriate. For example, to install the library binaries (including the locale databases) in /usr/local/lib/, and the headers under /usr/local/include/ perform the following steps: $ cp ${BUILDDIR}/lib/*.a \ ${BUILDDIR}/lib/*.so \ ${BUILDDIR}/lib/*.so.* \ /usr/local/lib $ cp -R ${BUILDDIR}/nls /usr/local/lib $ cp ${BUILDDIR}/include/config.h /usr/local/include $ cp -R ${TOPDIR}/include/* /usr/local/include When using the installed library be sure to define any macros also defined on the command line when building the library. These are: _RWSTDDEBUG to enable debugging support in the library; when using compilers that do not provide an option to enable thread safety or to select a thread library, the following macros may also have to be defined: _RWSTD_POSIX_THREADS, _RWSTD_SOLARIS_THREADS, _RWSTD_DCE_THREADS, and _RWSTDDEBUG. Failing to do so, or failing to specify the same compiler options that affect the binary compatibility of the library leads to undefined behavior of the produced executables. 7 Test Suite Build Instructions -------------------------------- When available, the test suite can be built by following the following steps. o $ cd ${BUILDDIR} $ gmake [ rwtest ][ tests ] [ examples ] The rwtest library is a prerequisite for the test programs (gmake rwtest). From ${BUILDDIR}, you can proceed to build the tests and the examples, either individually or all at the same time. You can either navigate into the respective subdirectories (i.e., ${BUILDDIR}/tests/, or ${BUILDDIR}/examples/) and type gmake [ target ] to build there or you can build directly from ${BUILDDIR} by typing gmake tests or gmake examples. The library sources and headers are expected to reside in ${TOPDIR}/src/ and ${TOPDIR}/include/, respectively, tests(*) in ${TOPDIR}/tests/ and examples(*) in ${TOPDIR}/examples/. The .d (dependencies) , .o (object) files and the executables are placed in the respective subdirectories of ${BUILDDIR}. * Where available. To run the tests(*) or examples(*), cd into ${BUILDDIR}/tests/ or ${BUILDDIR}/examples/, respectively, and type gmake run. For best results you should be using bash and an xterm. To make sure that you use bash either set your SHELL environment variable or set the SHELL makefile variable on the command line to the pathname of bash on your system. By default, the output of gmake run is formatted and colorized. If your terminal cannot deal with the escape sequences used to produce colors you can make it monochrome by setting your RUNOPTS make variable to -m on the command line (see ${TOPDIR}/etc/config/runall.sh for other options). * Where available. 7.1 VisualStudio Test Suite Build Instructions ----------------------------------------------- When available, the test suite can be built by following the following steps. o Run Microsoft Visual Studio IDE, open the generated solution file and select the desired solution configuration. To build the examples select the .stdcxx_examples project and invoke "Build"->"Build .stdcxx_examples" command. To build the tests select the .stdcxx_tests project and invoke "Build"->"Build .stdcxx_tests" command. To run the examples select the .stdcxx_runexamples project and invoke "Build"->"Build .stdcxx_runexamples" command. To run the tests select the .stdcxx_runtests project and invoke "Build"->"Build .stdcxx_runtests" command. 8 Library Configuration ------------------------ 8.1 config.h ------------- The library is configured (or reconfigured) for the platform (i.e., the compiler and operating system) it is to be built by executing the following command in the ${BUILDDIR}/include/ directory: $ gmake config This command generates a new config.h header file in the ${BUILDDIR}/include/ directory (replacing an existing one only if the new one differs) containing configuration macros describing to the library the properties of the platform. 8.2 rw/_config.h and rw/_defs.h -------------------------------- The generated config.h header is #included by a single private library header, ${TOPDIR}/include/rw/_config.h. The purpose of this header is to provide a central place for the maintainers of the project to manually override the configuration macros #defined in the automatically generated config.h (e.g., by #undefining them when they are #defined incorrectly or vice versa) based on their knowledge of the platform. The header is divided into three sets of sections: one for the hardware architecture, one for each supported compiler, and one for each supported operating system. Each section may #define or #undefine object-like configuration macros. As a matter of convention, function-like macros are not #defined in this header. The ${TOPDIR}/rw/_config.h header is #included by a single library header, ${TOPDIR}/include/rw/_defs.h. The purpose of this header is to #define convenience function-like macros, typically based on the value of one or more object-like configuration macros #defined in ${BUILDDIR}/include/config.h and/or ${TOPDIR}/include/rw/_config.h, that can then be easily used in the library headers and sources without the need for complicated, hard-to-read preprocessor conditionals. The idea is that all the complicated, unsightly logic is tucked away in one central place and the rest of the code is clean, even if obfuscated by macros. Every other library header, whether public or private, #includes the ${TOPDIR}/include/rw/_defs.h header. 8.3 Configuration Macros ------------------------- The library and the testsuite make use of a large number of macros to adjust their interface and behavior to the capabilities of the compiler, the underlying C libraries, and the operating system. Many of the macro definitions are generated during the autoconfiguration of the library and placed in ${BUILDDIR}/include/config.h. Some (but not necessarily all) of the important macros are described here. This list is intended as a reference for maintainers or porters of the library. The symbols in square brackets next to the macros below have the following meaning: - abi: Affects the binary (ABI or functional) compatibility of the library. The macro must be consistently #defined to the same value (or consistently #undefined) during the compilation of the library as well while using it. - auto: Automatically determined and #defined during configuration - lib: Affects library builds. The macro is not to be set except when building the library. - over: May be #defined or overridden on the command line or by editing one of the two config headers either when building the library or when using it (except for those marked lib). In addition, whenever a macro with the same root but a different suffix appears in the description a modified regular expression syntax has been used to abbreviate the list. 8.3.1 Platform Identification Macros ------------------------------------- The configuration infrastructure #defines a number of macros some of which can and should be used instead of similar such macros #defined by some compilers. o _RWSTD_OS_ The name of the macro depends on the name of the operating system typically reported by the uname utility: _RWSTD_OS_AIX: AIX _RWSTD_OS_HP_UX: HP-UX _RWSTD_OS_IRIX64: IRIX _RWSTD_OS_LINUX: Linux _RWSTD_OS_OSF1: Tru64 UNIX _RWSTD_OS_SUNOS: SunOS and Solaris o _RWSTD_OS_SYSNAME This macro expands to a string literal with the name of the operating system (the output of uname). o _RWSTD_OS_RELEASE This macro expands to a string literal with the name of the operating system release (the output of uname -r). o _RWSTD_OS_VERSION This macro expands to a string literal with the name of the operating system version (the output of uname -v). o _RWSTD_OS_MAJOR This macro expands to the major operating system version as a constant integer expressions suitable for use in #if preprocessing directives. o _RWSTD_OS_MINOR This macro expands to the minor operating system version as a constant integer expressions suitable for use in #if preprocessing directives. o _RWSTD_OS_MICRO This macro expands to the micro operating system version as a constant integer expressions suitable for use in #if preprocessing directives. 8.3.2 Compiler Configuration Macros ------------------------------------ o _RWSTD_NO_CONST_CAST [auto, over] o _RWSTD_NO_DYNAMIC_CAST [auto, over] o _RWSTD_NO_REINTERPRET_CAST [auto, over] o _RWSTD_NO_STATIC_CAST [auto, over] #defined when the respective cast operator is not available or does not function properly. In such cases, the ordinary (C-style) cast is used instead. o _RWSTD_NO_EXCEPTION_SPECIFICATION [auto] #defined when function exception specification is not supported or not functioning properly. All function exception specifications in the source code are removed. o _RWSTD_NO_EXPORT [auto, over] #defined when the export keyword is not supported or when the export feature does not work as expected. o _RWSTD_NO_EXPORT_KEYWORD [auto, over] #defined when the export keyword is not supported. o _RWSTD_NO_FUNCTION_TRY_BLOCK [auto] #defined when the function try block syntax is not supported. o _RWSTD_NO_EXCEPTIONS [auto, lib] #defined when exceptions are not supported or disabled. All try keywords in the source code are removed, catch expands to while (0) with the assumption that an optimizing compiler will remove the block. o _RWSTD_NO_EXPLICIT_INSTANTIATION [abi, auto, lib] #defined when explicit template instantiation isn't supported. o _RWSTD_NO_EXPLICIT_CTOR_INSTANTIATION [auto] #defined when explicit template instantiation of constructors isn't supported. o _RWSTD_NO_EXPLICIT_FUNC_INSTANTIATION [abi, auto, lib] #defined when explicit function template instantiation isn't supported. o _RWSTD_NO_EXPLICIT_INSTANTIATION_BEFORE_DEFINITION [auto, lib] #defined when class templates cannot be explicitly instantiated lexically before the definitions of all their members defined outside their bodies. o _RWSTD_NO_EXPLICIT_INSTANTIATION_WITH_IMPLICIT_INCLUSION [auto] #defined when explicit template instantiation isn't supported in conjunction with the implicit inclusion of template definition files (i.e., the .c or .cc files). o _RWSTD_NO_EXPLICIT_MEMBER_INSTANTIATION [auto] #defined when the explicit instantiation of member functions of class templates isn't supported. o _RWSTD_NO_EXTERN_TEMPLATE [auto, over] When #defined, the extern template C++ extension is not supported by the compiler. o _RWSTD_NO_IMPLICIT_INSTANTIATION [auto] #defined when the explicit instantiation of a template that references another template doesn't cause the implicit instantiation of the other template. o _RWSTD_NO_INSTANTIATE_DEFAULT_ARGS #defined when the explicit instantiation of a function template with a default argument causes the instantiation of the argument. o _RWSTD_NO_HONOR_STD #defined when namespace std is not completely honored. The macro is typically only #defined when using gcc versions prior to 3.0 without the -fhonor-std compiler option. o _RWSTD_NO_ICONV_CONST_CHAR [auto] #defined at configuration time according to the declaration of the POSIX function iconv(). o _RWSTD_NO_INLINE_MEMBER_TEMPLATES [auto, lib, over] #defined at configuration time for C++ implementations that reject member templates completely defined within the body of the class or template of which they are a member. o _RWSTD_NO_INSTANTIATE_DEFAULT_ARGS [auto, over] #defined at configuration time for C++ implementations that instantiate default arguments of function templates (or member functions of class templates) that depend on a template parameter. o _RWSTD_NO_ISO_10646_WCHAR_T #defined for libc implementations that do not represent values of wchar_t type in the ISO 10646 encoding (essentially UCS-4, or UNICODE). o _RWSTD_NO_IMPLICIT_INCLUSION #defined for the compilers that use the Borland instantiation model. It is also defined in some tests and example programs that have a code layout which is incompatible with using implicit inclusion on AIX 5.1 with VisualAge for C++ 5.0.2.0. o _RWSTD_NO_INSTANTIATE [abi, lib, over] When #defined the library will not explicitly instantiate any class or function templates. o _RWSTD_NO_LIB_EXCEPTIONS [auto, lib] #defined at configuration time when exceptions throws from a library cannot be caught in a program that links with the library. o _RWSTD_NO_LIST_NODE_BUFFER [abi, over] #defined to disable node buffer management of the class template std::list. o _RWSTD_NO_LONG_LONG [abi, auto] #defined if the C99 type long long is not supported or disabled, or when _RWSTD_STRICT_ANSI is #defined. o _RWSTD_NO_MEMBER_EXPLICIT_INSTANTIATION [auto, over] #defined when explicit instantiation of member templates is not supported. o _RWSTD_NO_MEMBER_TEMPLATES [abi, auto] #defined when member templates are not supported. The library tries to provide alternative solutions wherever possible. Some loss of functionality is inevitable. o _RWSTD_REENTRANT [abi, auto, lib] #defined for multi-thread safe build types 12[sd] and 15[sd] either automatically, when the library detects the usage of a special compiler switch (e.g. -mt on HP-UX and Sun/Solaris), or through the compiler configurations files in etc/config/ directory. o _RWSTD_NO_MUTABLE [auto, over] #defined at configuration time for C++ implementations that do not recognize the word mutable as a valid keyword. o _RWSTD_NO_NAMESPACE [abi, auto, lib] #defined when namespaces are not supported or disabled. All namespace-scope symbols defined in the sources are introduced to the global namespace. All using declarations and directives are removed. o _RWSTD_NO_NATIVE_BOOL [abi, auto, lib] #defined for C++ implementations that do not treat bool as a distinct fundamental type (but perhaps provide a typedef). o _RWSTD_NO_NATIVE_WCHAR_T #defined for C++ implementations that do not treat wchar_t as a distinct fundamental type (but perhaps provide a typedef). o _RWSTD_NO_NEW_HEADER [auto, over] When #defined, files will #include the deprecated C library header files rather than the "new" C++ C library files (e.g., rather than ). o _RWSTD_NO_NEW_CLASS_TEMPLATE_SYNTAX o _RWSTD_NO_NEW_FUNC_TEMPLATE_SYNTAX o _RWSTD_NO_NEW_TEMPLATE_SYNTAX o _RWSTD_NO_NONCLASS_ARROW_RETURN o _RWSTD_NO_NONDEDUCED_CONTEXT o _RWSTD_NO_NONTYPE_ARGS o _RWSTD_NO_NONTYPE_ARGUMENT_DEDUCTION o _RWSTD_NO_PARTIAL_CLASS_SPEC [abi, auto] #defined when partial specialization of class templates isn't supported or isn't functional. o _RWSTD_NO_PART_SPEC_OVERLOAD o _RWSTD_NO_PRAGMA_INSTANTIATE [lib, over] #defined when the #pragma instantiate directive isn't supported. o _RWSTD_NO_PRETTY_FUNCTION [auto, lib, over] #defined when the __PRETTY_FUNCTION__ special identifier (a common extension) is not supported. o _RWSTD_NO_PTR_EXCEPTION_SPEC [auto, over] #defined when declaring function pointers with exception specification is not supported. o _RWSTD_NO_PTR_VALUE_TEMPLATE_OVERLOAD o _RWSTD_NO_REDUNDANT_DEFINITIONS o _RWSTD_NO_REDUNDANT_DEFINITIONS [over] When #defined, public library headers will #include only a minimum set of other library headers necessary in order for the definitions of templates contained therein to compile without actually instantiating any of them. #defining the macro has the potential to decrease compile times. o _RWSTD_NO_SETLOCALE_ENVIRONMENT [auto, lib] #defined when the C locale is not affected by the setting of the LC_XXX environment variables. o _RWSTD_NO_SIMPLE_DEFAULT_TEMPLATES o _RWSTD_NO_SPECIALIZED_FRIEND o _RWSTD_NO_STATIC_CONST_MEMBER_INIT o _RWSTD_NO_STATIC_TEMPLATE_MEMBER_INIT o _RWSTD_NO_STATIC_MUTEX_INIT [abi, auto, lib, over] #defined when mutex objects with static storage duration cannot be statically initialized (3.6.2 [basic.start.init]) but must be initialized during dynamic initialization instead. The macro has an impact on thread-safety of the library. o _RWSTD_NO_TEMPLATE_DEFINITIONS [over] When #defined, public library header files containing definitions of iostream and locale templates do not explicitly #include the corresponding implementation .cc files. This option considerably decreases compile times on platforms that do not support implicit file inclusion. The macro has no effect when explicit instantiation is not supported. The macro must not be #defined when specializations other than those provided by the library binary are instantiated. o _RWSTD_NO_TEMPLATE_TEMPLATE [auto] #defined when template template arguments aren't supported. o _RWSTD_NO_THROW_SPEC_ON_NEW When #defined, overloads of operators new and delete declared in the public library header do not include the required exception specifications. o _RWSTD_NO_TYPENAME [auto] #defined when they keyword typename isn't fully supported. o _RWSTD_NO_COLLAPSE_STATIC_LOCALS [auto] #defined when the compiler/linker fail to collapse static local variables defined in a function template instantiated on the same type in multiple translation units into one. o _RWSTD_NO_COLLAPSE_TEMPLATE_LOCALS [auto] #defined when the compiler/linker fail to collapse static local variables whose type depends on a template parameter and that are defined in a function template instantiated on the same type in multiple translation units into one. o _RWSTD_NO_COLLAPSE_TEMPLATE_STATICS [auto] #defined when the compiler/linker fail to collapse static data members of a class template instantiated on the same type in multiple translation units into one. o _RWSTD_NO_USING_LIBC_IN_STD o _RWSTD_NO_VECTOR_BOOL When #defined the vector partial specialization is disabled and the primary template is used instead. 8.3.3 Runtime Library Configuration Macros ------------------------------------------- o _RWSTD_NO_NEW_THROWS [auto] When #defined, operator new doesn't throw an exception but instead returns 0 on failure. o _RWSTD_NO_{GLOBAL,STD}_BAD_{ALLOC,CAST,EXCEPTION,TYPEID} o _RWSTD_NO_{GLOBAL,STD}_EXCEPTION o _RWSTD_NO_{GLOBAL,STD}_NOTHROW[_T] o _RWSTD_NO_{GLOBAL,STD}_SET_{NEW_HANDLER,TERMINATE,UNEXPECTED} o _RWSTD_NO_{GLOBAL,STD}_TERMINATE [abi, auto, lib] The macros above are #defined at configuration time according to which namespace (global or std) each type (or the object nothrow) is defined in by the language runtime library. o _RWSTD_NO_{BAD_ALLOC,BAD_CAST,BAD_EXCEPTION,BAD_TYPEID}_{ASSIGNMENT, COPY_CTOR,DEFAULT_CTOR,DTOR,WHAT} [abi, auto, lib] Each macro is #defined when the corresponding member of each respective class is not defined in the language support library. o _RWSTD_NO_OPERATOR_{DELETE,NEW}[_ARRAY][{_NOTHROW,_PLACEMENT}] [auto, over] #defined at configuration time when the definition of the corresponding operator does not appear in the compiler support library. The library will provide the missing definitions by default. If any definition (except for the non-replaceable placement forms) needs to be replaced, user code should either #undefine the corresponding macro first or #define _RWSTD_NO_EXT_OPERATOR_NEW to disable all definitions provided by the library. The library is autoconfigured to detect the level of support for these operators provided by the compiler. The configuration macros below are #defined if and only if the functions are not found in the compiler support (a.k.a. language runtime) library. For each #defined macro, the C++ Standard library defines the corresponding function in header . [x] _RWSTD_NO_OPERATOR_DELETE_ARRAY [x] _RWSTD_NO_OPERATOR_DELETE_ARRAY_NOTHROW [ ] _RWSTD_NO_OPERATOR_DELETE_ARRAY_PLACEMENT [x] _RWSTD_NO_OPERATOR_DELETE_NOTHROW [ ] _RWSTD_NO_OPERATOR_DELETE_PLACEMENT [x] _RWSTD_NO_OPERATOR_NEW_ARRAY [x] _RWSTD_NO_OPERATOR_NEW_ARRAY_NOTHROW [ ] _RWSTD_NO_OPERATOR_NEW_ARRAY_PLACEMENT [x] _RWSTD_NO_OPERATOR_NEW_NOTHROW [ ] _RWSTD_NO_OPERATOR_NEW_PLACEMENT In addition, however, since the functions whose corresponding config macros above are marked [x] must be replaceable, and since it may not be possible to achieve the effect of replaceability without compiler support, the user-controlled macro _RWSTD_NO_EXT_OPERATOR_NEW may be manually #defined to prevent the library from defining the functions if a program needs to replace them. Finally, the macro _RWSTD_NO_PLACEMENT_DELETE may be #defined (either by the library headers or, if not, by a program) if it is necessary to disable declarations and definitions of placement forms of operator delete, e.g., due to a compiler limitation or a bug. o _RWSTD_NO_PLACEMENT_DELETE [auto, over] When #defined, placement forms of ::operator delete() will not be declared (or defined) by the header . Provided in case their declarations cause problems in user code. 8.3.4 C Library Configuration Macros ------------------------------------- o _RWSTD_NO_LIBC_IN_STD [auto, over] When #defined, the names defined by the C library are expected to be found in namespace std. Otherwise they are expected to be defined only in the global namespace. o _RWSTD_NO_{CASSERT,CCTYPE,CERRNO,CFLOAT,CISO646,CLIMITS,CLOCALE, CMATH,CSETJMP,CSIGNAL,CSTDARG,CSTDDEF,CSTDIO,CSTDLIB, CSTRING,CTIME,CWCHAR,CWCTYPE} [auto] #defined when the respective header is not found in the preprocessor search path. o _RWSTD_NO_${FUN}[_IN_LIBC] [auto] #defined when the extern "C" function ${FUN} declaration is not found in the expected C header, or if the extern "C" symbol ${FUN} is not found in the libc binary. o _RWSTD_NO_{ABS,ACOS,ASIN,ATAN,ATAN2,CEIL,COS,COSH,EXP,FABS,FLOOR, FMOD,FREXP,LDEXP,LOG,LOG10,MODF,POW,POW,SIN,SINH,SQRT, TAN,TANH}{D,DBL,F,FLT,L,LDBL}[_IN_LIBM] [auto] #defined when the respective functions are not found during autoconfiguration in the header or in the libm library binary. For example, when the function extern "C" float acosf(float) is not declared in on a platform but the symbol extern "C" acosf is found in the libm library binary, the macro _RWSTD_NO_ACOSF will be #defined but the macro _RWSTD_NO_ACOSF_IN_LIBM will be #undefined. o _RWSTD_NO_PURE_C_HEADERS o _RWSTD_NO_WCSFTIME_WCHAR_T_FMAT [auto] 8.3.5 Macros Controlling Strings --------------------------------- o _RWSTD_NO_STRING_MUTEX [abi, lib, over] When #defined std::basic_string objects are not reference counted. o _RWSTD_ONE_STRING_MUTEX [abi, lib, over] When #defined std::basic_string objects are reference counted. A single per-process mutex object is used for thread safety. 8.3.6 Macros Controlling Iostreams ----------------------------------- o _RWSTD_NO_IOSTREAM_OBJECT_REFS [abi, auto, lib, over] When #defined while _RWSTD_NO_STATIC_IOSTREAM_INIT is not #defined, the eight standard iostream objects (cout, etc.) are declared in to be of their respective types but defined in the library binary to be of an unrelated POD type to prevent their destruction during program lifetime. Since object type isn't typically encoded in its name and the declaration and definition isn't ever seen by the compiler in the same translation unit this doesn't cause problems. o _RWSTD_NO_NATIVE_IO [lib, over] #defined to force file streams to use the facilities of libc stdio as opposed to the POSIX I/O interface. o _RWSTD_DEFAULT_BUFSIZE [lib, over] #defined to the size of the character buffer used by objects of std::basic_filebuf<>, in characters. The default value is 512. o _RWSTD_PBACK_SIZE [lib, auto] #defined to the size of the basic_streambuf putback area in characters. The default value is 4. o _RWSTD_NO_REENTRANT_IO [abi, lib, over] #defined when the iostream library should not be thread-safe. o _RWSTD_NO_REENTRANT_IO_DEFAULT [abi, lib, over] #defined when the standard iostream objects should not be thread-safe by default. o _RWSTD_NO_STATIC_IOSTREAM_INIT [abi, auto, lib, over] When #defined, the eight standard iostream objects (std::cin, std::cout, etc.) are ordinary objects with static storage duration and are destroyed during program lifetime (which violates 27.3, p2). 8.3.7 Macros Controlling Locale -------------------------------- o _RWSTD_NO_CAT_NAMES When #defined, combined locale names do not include the names of locale categories. For example, on Solaris, combined locale names consist of the name of each category in a fixed order separated by slashes. On Linux, combined locale names, however, include the name of each category followed by the equals sign followed by the name of the locale, with the categories separated from one another by a semicolon. E.g., "LC_CTYPE=C;LC_TIME=en;..." o _RWSTD_NO_INITIAL_CAT_SEP [auto, lib] #defined at configuration time in environments where combined libc locale names do not begin with the character used to separate the names of individual locale categories. For example, HP-UX 11.00 combined locale name has the form "C C C en C C" but on Solaris, the equivalent name would be "/C/C/C/en/C/C". On Solaris, then, the macro would be #defined. o _RWSTD_CAT_SEP Expands to a character string that separates locale categories in combined locale names (such as " " on AIX and HP-UX, "/" on Solaris, or ";" on Linux). o _RWSTD_NO_CAT_EQ When #defined, the names of locale categories in combined locale names are not separated from the name of the locale by the equals sign. o _RWSTD_NO_CONDENSED_NAME When #defined, locale names always include all locale categories, even if they are all the same. This is true, for example, on HP-UX when the name of the "C" locale returned from setlocale (LC_ALL, 0) is "C C C C C C" and not just "C" as it is on Solaris. o _RWSTD_LDBL_PRINTF_PREFIX [auto, lib] #defined the printf() format modifier as a string literal for type long double, when supported. Typically, the value of the macro is "L". o _RWSTD_NO_LDBL_PRINTF_PREFIX [auto, lib] #defined when no printf() format modifier for type long double is known. o _RWSTD_LLONG_PRINTF_PREFIX [auto] #defined the printf() format modifier as a string literal for type long long, when supported. Typically, the value of the macro is "ll". o _RWSTD_NO_LLONG_PRINTF_PREFIX [auto] #defined when no printf() format modifier for type long long is known. o _RWSTD_EXPORT [auto] _RWSTD_CLASS_EXPORT [auto] _RWSTD_MEMBER_EXPORT [auto] These three macros control the exporting of symbols from the library; the latter two are used in selectively controlling the exporting of symbols from classes that have member templates (e.g. locale class). o _RWSTD_NO_STRTOF_UFLOW [auto, lib] _RWSTD_NO_STRTOD_UFLOW _RWSTD_NO_STRTOLD_UFLOW Each of these macros is #defined when the corresponding C library function fails to set errno (usually to ERANGE) on underflow. 8.3.8 Macros Controlling Implementation Properties --------------------------------------------------- o _RWSTD_BOOL_SIZE [abi, auto, lib] _RWSTD_CHAR_SIZE _RWSTD_SHRT_SIZE _RWSTD_INT_SIZE _RWSTD_LONG_SIZE _RWSTD_LLONG_SIZE _RWSTD_FLT_SIZE _RWSTD_DBL_SIZE _RWSTD_LDBL_SIZE _RWSTD_WCHAR_T_SIZE _RWSTD_PTR_SIZE _RWSTD_FUNPTR_SIZE (function pointer) _RWSTD_MEMPTR_SIZE (member pointer) Each of the _RWSTD__SIZE macros above expands to the size of the respective fundamental type (as returned by sizeof) as a constant integer expressions suitable for use in #if preprocessing directives. If no such type exists the corresponding macros are not #defined. o _RWSTD_CHAR_BIT Expands to the value of CHAR_BIT as a constant integer expressions suitable for use in #if preprocessing directives. o _RWSTD_BOOL_{MAX,MIN} [abi, auto, lib] _RWSTD_CHAR_{MAX,MIN} _RWSTD_SCHAR_{MAX,MIN} (int) _RWSTD_UCHAR_{MAX,MIN} (unsigned int) _RWSTD_SHRT_{MAX,MIN} (int) _RWSTD_USHRT_{MAX,MIN} (unsigned int) _RWSTD_INT_{MAX,MIN} _RWSTD_UINT_{MAX,MIN} _RWSTD_LONG_{MAX,MIN} _RWSTD_ULONG_{MAX,MIN} _RWSTD_LLONG_{MAX,MIN} _RWSTD_ULLONG_{MAX,MIN} _RWSTD_WCHAR_T_{MAX,MIN} (int or long) _RWSTD_SIZE_{MAX,MIN} (size_t) _RWSTD_PTRDIFF_{MAX,MIN} (ptrdiff_t) _RWSTD_WINT_{MAX,MIN} (wint_t) Each of the _RWSTD__{MAX,MIN} macros above expands to the maximum and minimum representable value in the respective integer type as a constant integer expressions suitable for use in #if preprocessing directives. Except as marked, the type of each macro is the corresponding type promoted according to the integer promotion rules. If no such type exists the corresponding macros are not #defined. o _RWSTD_INT8_T [abi, auto, lib] _RWSTD_UINT8_T _RWSTD_INT16_T _RWSTD_UINT16_T _RWSTD_INT32_T _RWSTD_UINT32_T _RWSTD_INT64_T _RWSTD_UINT64_T Each of the _RWSTD_INT_T and _RWSTD_UINT_T macros above expands to the signed and unsigned, respectively, type T for which (sizeof(T) * CHAR_BIT == width) holds. If no such type exists the macro is not #defined. Note that each macro can expand to two or more tokens. o _RWSTD_{FLT,DBL,LDBL}_{INF,SNAN,QNAN}_BITS [auto, lib] #defined at configuration time to be the byte representation of infinity, signaling NaN and quiet NaN, respectively. The macros are defined as brace-delimited arrays of chars. o _RWSTD_{FLT,DBL,LDBL}_HAS_DENORM [auto, lib] #defined to 1 when the corresponding floating point type supports denormalized values and to 0 otherwise. o _RWSTD_NO_DBL_TRAPS [auto, lib] #defined when values of type double implement trapping for certain arithmetic operations (such division by zero). o _RWSTD_NO_IEC559 [auto, over] #defined at configuration time if it is determined that the environment fails to satisfy the requirements of the IEC 559 standard. o _RWSTD_NO_IEEEFP_H o _RWSTD_NO_INFINITY [auto] #defined at configuration time for environments that do not support the concept of a floating point infinity. o _RWSTD_NO_INT_TRAPS [auto, lib] #defined when values of type int implement trapping for certain arithmetic operations (such division by zero). o _RWSTD_NO_NAN_TRAPS [auto, lib] #defined when the value NaN (Not a Number) causes a hardware trap when used in arithmetic expressions. o _RWSTD_NO_SIGNALING_NAN 8.3.9 Other Configuration Macros --------------------------------- o _RWSTD_NO_OPTIMIZE_SPEED 8.3.10 Macros Controlling Extensions ------------------------------------- The following options are provided to allow to disable various library extensions. An extensions is defined as a library interface or its behavior that is left unspecified by the standard or, in some rare cases, that is specified by the standard but where this implementation differs from the specification. In addition to the symbols in square brackets defined above, the symbol pure denotes an extension that is not conflict with the C++ standard: o _RWSTD_NO_EXTENSIONS [over] o _RWSTD_STRICT_ANSI [over] When #defined, most library extensions are disabled by #defining the various _RWSTD_NO_EXT_XXX macros documented below. The _RWSTD_STRICT_ANSI macro is deprecated and should be avoided. o _RWSTD_NO_EXT_DEQUE_ASSIGN_IN_PLACE [over] o _RWSTD_NO_EXT_DEQUE_INSERT_IN_PLACE [over] o _RWSTD_NO_EXT_VECTOR_ASSIGN_IN_PLACE [over] o _RWSTD_NO_EXT_VECTOR_INSERT_IN_PLACE [over] When #defined, the multi-element overloads of the member functions assign() and insert() defined by the class templates deque and vector provide the basic exception guarantee as required by the C++ Standard. Otherwise, when (size() >= N) holds for N being the number elements being assigned or inserted, and value_type's assignment operator or iterator operations do not throw, the functions provide the nothrow exception guarantee. o _RWSTD_NO_EXT_FILEBUF [pure, over] When #defined, extensions to the class template std::basic_filebuf and the std::basic_fstream family of templates are not available. o _RWSTD_EXT_DEEP_STRING_COPY [pure] When #defined, the member function copy() of class template basic_string which returns a deep copy of the string object is not declared. o _RWSTD_NO_EXT_FAILURE [lib, over, pure] When #defined, disables extensions to the std::ios_base::failure class (i.e., the classes std::ios_base::badbit_set, eofbit_set, and failbit_set). #defining _RWSTD_STRICT_ANSI causes the #definition of this macro as well. o _RWSTD_NO_EXT_BITSET_CTOR_CHAR_ARRAY [over, pure] When #defined, disable the declarations of the two std::bitset constructor overloads that take const char* and const wchar_t*, respectively, as their first argument. The purpose of this extension is to make it possible to construct std::bitset objects from string literals without dynamic memory allocation. o _RWSTD_NO_EXT_BITSET_CTOR_STRING [over, pure] When #defined, disable the declaration of the two std::bitset constructor overloads that take std::string and std::wstring, respectively, as their first argument. The purpose of this extension is to make it possible to construct std::bitset objects from string literals. o _RWSTD_NO_EXT_BITSET_TO_STRING [over, pure] When #defined, disables the declarations of the three overloads of the const member function to_string() of the class template std::bitset specified in LWG issue 434: http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#434 o _RWSTD_NO_EXT_BIN_IO [over, pure] When #defined, disables support for base 2 numerical input and output in iostreams and the std::num_get<> and std::num_put<> facets, and undefines the symbol std::ios_base::bin. #defining _RWSTD_STRICT_ANSI causes the #definition of this macro as well. o _RWSTD_NO_EXT_IOS_SAFE_CONVERSION [over] When #defined, the const member function operator void*() of the class template basic_ios is declared. Otherwise, the resolution of the Library Working Group's issue 568 is implemented instead. See http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#468 o _RWSTD_NO_EXT_OPERATOR_NEW [auto, over] When #defined, disables the replaceable definitions provided in for missing global operators new and delete, allowing them to be defined by the user. o _RWSTD_NO_EXT_PORTABLE_RANDOM_SEQUENCE [lib, pure] When #defined, the random number generator used by this implementation of the C++ Standard Library generates integer values in the full range of the type size_t. Otherwise, the generator is restricted to the range of unsigned 32-bit values for data portability. o _RWSTD_NO_EXT_REENTRANT_IO [over, pure] When #defined, disables support for user-control of iostream and streambuf locking, and undefines the symbols std::ios_base::nolock and std::ios_base::nolockbuf. Only relevant in thread-safe builds. #defining _RWSTD_STRICT_ANSI causes the #definition of this macro as well. o _RWSTD_NO_EXT_SETBASE When #defined, the std::setbase manipulator accepts only the required numeric bases (i.e., 0, 8, 10, 16, and 2 unless _RWSTD_NO_EXT_BIN_IO is also #defined). o _RWSTD_NO_EXT_VOID_COUNT [over, pure] When #defined, disables the non-conforming versions of the std::count() and std::count_if() algorithms that take four or five arguments, respectively, and return void. The algorithms are provided for backward compatibility or on platforms that cannot handle partial specialization of class templates. The macro has no effect if partial specialization is not supported. o _RWSTD_NO_EXT_VOID_DISTANCE [over, pure] When #defined, disables the non-conforming version of the std::distance() algorithm that takes three arguments and returns void. The algorithm is provided for backward compatibility or on platforms that cannot handle partial specialization of class templates. The macro has no effect if partial specialization is not supported. o _RWSTD_NO_REENTRANT_IO_DEFAULT [lib, over, pure] When #defined in thread-safe builds, all newly constructed iostream objects (i.e., other than the standard iostream objects std::cin, std::cout, etc.) are created with the bits std::ios_base::lock and std::ios_base::lockbuf set (i.e., the same object will be safe to use across thread boundaries). Otherwise, the are created with the bits set. Has no effect if _RWSTD_NO_EXT_REENTRANT_IO is #defined or in non-thread-safe builds. o _RWSTD_NO_EXT_CHAR_TRAITS_PRIMARY [over, pure] o _RWSTD_NO_EXT_CODECVT_PRIMARY [over, pure] o _RWSTD_NO_EXT_CTYPE_PRIMARY [over, pure] o _RWSTD_NO_EXT_COLLATE_PRIMARY [over, pure] o _RWSTD_NO_EXT_MONEYPUNCT_PRIMARY [over, pure] o _RWSTD_NO_EXT_NUMPUNCT_PRIMARY [over, pure] o _RWSTD_NO_EXT_TIME_GET_PRIMARY [over, pure] o _RWSTD_NO_EXT_TIME_PUT_PRIMARY [over, pure] o _RWSTD_NO_EXT_MESSAGES_PRIMARY [over, pure] When #defined, the corresponding primary template, which is otherwise defined as an extension of this implementation, is not defined by the library. 9 Library Organization ----------------------- The symbols declared and defined by this implementation of the C++ Standard Library are organized in a number of public and private headers, template implementation files, C++ source files, and assembly files. The purpose of this section is to document the conventions used in the organization of the symbols and their declarations and definitions in the library files. 9.1 Organization of Headers ---------------------------- Every library header starts with a comment containing the relative pathname of the file with respect to the ${TOPDIR}/include/ directory (such as iostream or rw/_config.h) along with a brief description of the contents of the file and a copyright notice. Below the comment is a header #inclusion guard that prevents the contents of the same header file from being expanded more than once in any translation unit from which the header might be included more than once. The naming convention used for the guard is as follows: #ifndef _RWSTD__INCLUDED #define _RWSTD__INCLUDED ... /* contents of the file*/ #endif // _RWSTD__INCLUDED Where is the relative pathname of the header with slashes replaced by underscores (e.g, _RWSTD_IOSTREAM_INCLUDE for the header iostream or _RWSTD_RW_CONFIG_H_INCLUDED for rw/_config.h). In order to minimize the size of translation units and the namespace pollution caused by #including library headers in programs (as well as the library sources themselves) library headers #include only the absolute minimum of other C++ Standard library headers, and only those third party (such as libc or OS) headers that are absolutely necessary and whose symbols cannot be forward-declared. This set of third party headers is at this point limited to , , and , and the appropriate threads header in thread-safe configurations. Since no other headers are #included, common C library symbols such as ptrdiff_t, size_t, or CHAR_MAX that are declared in these headers are determined at library configuration time and available under the appropriate configuration macros (_RWSTD_PTRDIFF_T, _RWSTD_SIZE_T, and _RWSTD_CHAR_MAX in this example). The C++ Standard library headers always use these macros rather than their C library equivalents. In order to make sure these macros are always available every library header must contain the #include directive. 9.2 Organization of Sources ---------------------------- Every library source file starts with a comment containing name of the file along with a brief description of the contents of the file and a copyright notice. Below the comment are any necessary #include directives, including #include . Since namespace pollution is not a concern for source files, the "deprecated" C library headers (such as ) are always #included in favor of the "new" C++ C library equivalents (i.e., ) for portability. However, since the size of library translation units has an effect on the size of the library itself as well as on the size of executables linked with an archive version of the library, each source file must include only the bare minimum of the C++ Standard Library headers. In order to minimize code bloat, library source files must take care to instantiate only the barest minimum of templates defined by the library. No source file instantiates any public templates unless necessitated by the requirements of the C++ Standard. For instance, while it isn't possible to avoid instantiating std::string (since the type is used in locale and iostreams), instantiating any other container is unnecessary and thus avoided. In order to further minimize the size of programs that link with an archive version of the library each library source file defines only the smallest set of symbols that is to the maximum possible extent independent of those defined in any other library source file. 10 Platform Notes ------------------ 10.1 Apogee C++ ---------------- Port not maintained. 10.2 Borland C++ ----------------- Not ported. 10.3 Comeau C++ ---------------- Ported to Comeau C++ 4.2.42 or later on Solaris. 10.4 Compaq C++ ---------------- Ported to Compaq C++ 6.2 or later for Tru64 UNIX. 10.5 EDG eccp -------------- Ported to the EDG eccp demo 2.45.2 through 3.6 on Linux and Solaris. 10.6 GNU gcc ------------- Ported to gcc 2.95.2 through 4.0.0 on a variety of operating systems and architectures, including HP-UX, Linux, and Solaris. The library has not been ported to Apple Darwin and is known to fail to build. 10.7 HP aCC ------------ Ported to HP aCC 3.13 and later for PA-RISC, and 5.36 and later, and 6.0 and later for IPF. 10.8 IBM VisualAge C++ ----------------------- For builds with VisualAge for C++ 5.0 and 6.0 there are some special considerations when building programs that use the implicit inclusion mechanism (i.e., the -qtempinc mode which is active by default). The mechanism imposes some restrictions on the way the source code is structured: template declarations have to be present in header files while corresponding .c source files must contain these templates' implementations. Source code otherwise perfectly correct, containing template classes or functions definitions or definitions of types used in instantiations of templates in cpp files, will not be able to benefit from this feature. 10.9 Intel C++ --------------- Ported to Intel C++ 7.0 through 9.0 on Linux and Windows (x86, IA64, and EM64T). 10.10 KAI C++ -------------- Port not maintained. 10.11 Metrowerks CodeWarrior ----------------------------- Not ported. 10.12 Microsoft MSVC -------------------- Ported to MSVC 6.0 through 8.0 on Windows (x86, IA64, and EM64T). 10.13 SGI MIPSpro ------------------ Ported to SGI MIPSpro 7.3 through 7.5 for IRIX 6.5. 10.14 Siemens CDS++ -------------------- Port not maintained. 10.15 Sun C++ -------------- Ported to Sun C++ 5.3 through 5.7 on Solaris and Linux (SPARC and x86_64).