head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.3 netbsd-11-0-RC3:1.1.1.3 netbsd-11-0-RC2:1.1.1.3 netbsd-11-0-RC1:1.1.1.3 gcc-14-3-0:1.1.1.3 perseant-exfatfs-base-20250801:1.1.1.3 netbsd-11:1.1.1.3.0.14 netbsd-11-base:1.1.1.3 gcc-12-5-0:1.1.1.3 netbsd-10-1-RELEASE:1.1.1.3 perseant-exfatfs-base-20240630:1.1.1.3 gcc-12-4-0:1.1.1.3 perseant-exfatfs:1.1.1.3.0.12 perseant-exfatfs-base:1.1.1.3 netbsd-8-3-RELEASE:1.1.1.2 netbsd-9-4-RELEASE:1.1.1.3 netbsd-10-0-RELEASE:1.1.1.3 netbsd-10-0-RC6:1.1.1.3 netbsd-10-0-RC5:1.1.1.3 netbsd-10-0-RC4:1.1.1.3 netbsd-10-0-RC3:1.1.1.3 netbsd-10-0-RC2:1.1.1.3 netbsd-10-0-RC1:1.1.1.3 gcc-12-3-0:1.1.1.3 gcc-10-5-0:1.1.1.3 netbsd-10:1.1.1.3.0.10 netbsd-10-base:1.1.1.3 netbsd-9-3-RELEASE:1.1.1.3 gcc-10-4-0:1.1.1.3 cjep_sun2x-base1:1.1.1.3 cjep_sun2x:1.1.1.3.0.8 cjep_sun2x-base:1.1.1.3 cjep_staticlib_x-base1:1.1.1.3 netbsd-9-2-RELEASE:1.1.1.3 cjep_staticlib_x:1.1.1.3.0.6 cjep_staticlib_x-base:1.1.1.3 gcc-10-3-0:1.1.1.3 netbsd-9-1-RELEASE:1.1.1.3 gcc-9-3-0:1.1.1.3 gcc-7-5-0:1.1.1.3 phil-wifi-20200421:1.1.1.3 phil-wifi-20200411:1.1.1.3 is-mlppp:1.1.1.3.0.4 is-mlppp-base:1.1.1.3 phil-wifi-20200406:1.1.1.3 netbsd-8-2-RELEASE:1.1.1.2 gcc-8-4-0:1.1.1.3 netbsd-9-0-RELEASE:1.1.1.3 netbsd-9-0-RC2:1.1.1.3 netbsd-9-0-RC1:1.1.1.3 phil-wifi-20191119:1.1.1.3 gcc-8-3-0:1.1.1.3 netbsd-9:1.1.1.3.0.2 netbsd-9-base:1.1.1.3 phil-wifi-20190609:1.1.1.3 netbsd-8-1-RELEASE:1.1.1.2 netbsd-8-1-RC1:1.1.1.2 pgoyette-compat-merge-20190127:1.1.1.2.14.1 pgoyette-compat-20190127:1.1.1.3 gcc-7-4-0:1.1.1.3 pgoyette-compat-20190118:1.1.1.3 pgoyette-compat-1226:1.1.1.3 pgoyette-compat-1126:1.1.1.3 gcc-6-5-0:1.1.1.3 pgoyette-compat-1020:1.1.1.2 pgoyette-compat-0930:1.1.1.2 pgoyette-compat-0906:1.1.1.2 netbsd-7-2-RELEASE:1.1.1.1 pgoyette-compat-0728:1.1.1.2 netbsd-8-0-RELEASE:1.1.1.2 phil-wifi:1.1.1.2.0.16 phil-wifi-base:1.1.1.2 pgoyette-compat-0625:1.1.1.2 netbsd-8-0-RC2:1.1.1.2 pgoyette-compat-0521:1.1.1.2 pgoyette-compat-0502:1.1.1.2 pgoyette-compat-0422:1.1.1.2 netbsd-8-0-RC1:1.1.1.2 pgoyette-compat-0415:1.1.1.2 pgoyette-compat-0407:1.1.1.2 pgoyette-compat-0330:1.1.1.2 pgoyette-compat-0322:1.1.1.2 pgoyette-compat-0315:1.1.1.2 netbsd-7-1-2-RELEASE:1.1.1.1 pgoyette-compat:1.1.1.2.0.14 pgoyette-compat-base:1.1.1.2 gcc-6-4-0:1.1.1.2 netbsd-7-1-1-RELEASE:1.1.1.1 gcc-5-5-0:1.1.1.2 matt-nb8-mediatek:1.1.1.2.0.12 matt-nb8-mediatek-base:1.1.1.2 perseant-stdc-iso10646:1.1.1.2.0.10 perseant-stdc-iso10646-base:1.1.1.2 netbsd-8:1.1.1.2.0.8 netbsd-8-base:1.1.1.2 prg-localcount2-base3:1.1.1.2 prg-localcount2-base2:1.1.1.2 prg-localcount2-base1:1.1.1.2 prg-localcount2:1.1.1.2.0.6 prg-localcount2-base:1.1.1.2 pgoyette-localcount-20170426:1.1.1.2 bouyer-socketcan-base1:1.1.1.2 pgoyette-localcount-20170320:1.1.1.2 netbsd-7-1:1.1.1.1.0.14 netbsd-7-1-RELEASE:1.1.1.1 netbsd-7-1-RC2:1.1.1.1 netbsd-7-nhusb-base-20170116:1.1.1.1 bouyer-socketcan:1.1.1.2.0.4 bouyer-socketcan-base:1.1.1.2 pgoyette-localcount-20170107:1.1.1.2 netbsd-7-1-RC1:1.1.1.1 pgoyette-localcount-20161104:1.1.1.2 netbsd-7-0-2-RELEASE:1.1.1.1 localcount-20160914:1.1.1.2 netbsd-7-nhusb:1.1.1.1.0.12 netbsd-7-nhusb-base:1.1.1.1 pgoyette-localcount-20160806:1.1.1.2 pgoyette-localcount-20160726:1.1.1.2 pgoyette-localcount:1.1.1.2.0.2 pgoyette-localcount-base:1.1.1.2 gcc-5-4-0:1.1.1.2 netbsd-7-0-1-RELEASE:1.1.1.1 gcc-5-3-0:1.1.1.2 netbsd-7-0:1.1.1.1.0.10 netbsd-7-0-RELEASE:1.1.1.1 gcc-4-8-5-pre-gcc-old-import:1.1.1.1 netbsd-7-0-RC3:1.1.1.1 netbsd-7-0-RC2:1.1.1.1 post-gcc-4-8-5-merge:1.1.1.1 gcc-4-8-5:1.1.1.1 netbsd-7-0-RC1:1.1.1.1 gcc-4-8-4:1.1.1.1 gcc-4-8-20141009:1.1.1.1 tls-maxphys-base:1.1.1.1 tls-maxphys:1.1.1.1.0.8 netbsd-7:1.1.1.1.0.6 netbsd-7-base:1.1.1.1 gcc-4-8-3:1.1.1.1 yamt-pagecache:1.1.1.1.0.4 yamt-pagecache-base9:1.1.1.1 tls-earlyentropy:1.1.1.1.0.2 tls-earlyentropy-base:1.1.1.1 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.1 riastradh-drm2-base3:1.1.1.1 gcc-4-8-3-pre-r208254:1.1.1.1 gcc-4-8-3-pre-r206687:1.1.1.1 FSF:1.1.1; locks; strict; comment @# @; 1.1 date 2014.03.01.08.41.30; author mrg; state Exp; branches 1.1.1.1; next ; commitid TtaB91QNTknAoYqx; 1.1.1.1 date 2014.03.01.08.41.30; author mrg; state Exp; branches 1.1.1.1.4.1 1.1.1.1.8.1; next 1.1.1.2; commitid TtaB91QNTknAoYqx; 1.1.1.2 date 2016.01.24.06.05.43; author mrg; state Exp; branches 1.1.1.2.14.1 1.1.1.2.16.1; next 1.1.1.3; commitid uWWfbLp08zOK79Sy; 1.1.1.3 date 2018.11.04.00.12.37; author mrg; state Exp; branches; next ; commitid bulspy67pMB6EyYA; 1.1.1.1.4.1 date 2014.03.01.08.41.30; author yamt; state dead; branches; next 1.1.1.1.4.2; commitid DX8bafDLmqEbpyBx; 1.1.1.1.4.2 date 2014.05.22.16.37.45; author yamt; state Exp; branches; next ; commitid DX8bafDLmqEbpyBx; 1.1.1.1.8.1 date 2014.03.01.08.41.30; author tls; state dead; branches; next 1.1.1.1.8.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.1.8.2 date 2014.08.19.23.54.46; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.2.14.1 date 2018.11.26.01.50.57; author pgoyette; state Exp; branches; next ; commitid Zj4q5SspGdKXto1B; 1.1.1.2.16.1 date 2019.06.10.21.54.48; author christos; state Exp; branches; next ; commitid jtc8rnCzWiEEHGqB; desc @@ 1.1 log @Initial revision @ text @
Prev Part III.  Extensions  Next

Here we will make an attempt at describing the non-Standard extensions to the library. Some of these are from older versions of standard library components, namely SGI's STL, and some of these are GNU's.

Before you leap in and use any of these extensions, be aware of two things:

  1. Non-Standard means exactly that.

    The behavior, and the very existence, of these extensions may change with little or no warning. (Ideally, the really good ones will appear in the next revision of C++.) Also, other platforms, other compilers, other versions of g++ or libstdc++ may not recognize these names, or treat them differently, or...

  2. You should know how to access these headers properly.

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Part III.  Extensions  Home Chapter 16. Compile Time Checks
@ 1.1.1.1 log @import GCC 4.8 branch at r206687. highlights from: http://gcc.gnu.org/gcc-4.6/changes.html GCC now has stricter checks for invalid command-line options New -Wunused-but-set-variable and -Wunused-but-set-parameter warnings Many platforms have been obsoleted Link-time optimization improvements A new switch -fstack-usage has been added A new function attribute leaf was introduced A new warning, enabled by -Wdouble-promotion Support for selectively enabling and disabling warnings via #pragma GCC diagnostic has been added There is now experimental support for some features from the upcoming C1X revision of the ISO C standard Improved experimental support for the upcoming C++0x ISO C++ standard G++ now issues clearer diagnostics in several cases Updates for ARM, x86, MIPS, PPC/PPC64, SPARC Darwin, FreeBSD, Solaris 2, MinGW and Cygwin now all support __float128 on 32-bit and 64-bit x86 targets. [*1] highlights from: http://gcc.gnu.org/gcc-4.7/changes.html The -fconserve-space flag has been deprecated Support for a new parameter --param case-values-threshold=n was added Interprocedural and Link-time optimization improvements A new built-in, __builtin_assume_aligned, has been added A new warning option -Wunused-local-typedefs was added A new experimental command-line option -ftrack-macro-expansion was added Support for atomic operations specifying the C++11/C11 memory model has been added There is support for some more features from the C11 revision of the ISO C standard Improved experimental support for the new ISO C++ standard, C++11 Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE* A new option (-grecord-gcc-switches) was added highlights from: http://gcc.gnu.org/gcc-4.8/changes.html GCC now uses C++ as its implementation language. This means that to build GCC from sources, you will need a C++ compiler that understands C++ 2003 DWARF4 is now the default when generating DWARF debug information A new general optimization level, -Og, has been introduced A new option -ftree-partial-pre was added The option -fconserve-space has been removed The command-line options -fipa-struct-reorg and -fipa-matrix-reorg have been removed Interprocedural and Link-time optimization improvements AddressSanitizer, a fast memory error detector, has been added [*2] A new -Wsizeof-pointer-memaccess warning has been added G++ now supports a -std=c++1y option for experimentation with features proposed for the next revision of the standard, expected around 2014 Improved experimental support for the new ISO C++ standard, C++11 A new port has been added to support AArch64 Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE* [*1] we should support this too! [*2] we should look into this. https://code.google.com/p/address-sanitizer/ @ text @@ 1.1.1.2 log @import GCC 5.3.0. see these urls for details which are too large to include here: http://gcc.gnu.org/gcc-4.9/changes.html http://gcc.gnu.org/gcc-5/changes.html (note that GCC 5.x is a release stream like GCC 4.9.x, 4.8.x, etc.) the main issues we will have are: The default mode for C is now -std=gnu11 instead of -std=gnu89. ARM: The deprecated option -mwords-little-endian has been removed. The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame which are only applicable to the old ABI have been deprecated. MIPS: The o32 ABI has been modified and extended. The o32 64-bit floating-point register support is now obsolete and has been removed. It has been replaced by three ABI extensions FPXX, FP64A, and FP64. The meaning of the -mfp64 command-line option has changed. It is now used to enable the FP64A and FP64 ABI extensions. @ text @d5 1 a5 1  Next

@ 1.1.1.2.16.1 log @Sync with HEAD @ text @d2 1 a2 1

Prev Part III.  @ 1.1.1.2.14.1 log @Sync with HEAD, resolve a couple of conflicts @ text @d2 1 a2 1
Prev Part III.  @ 1.1.1.3 log @import GCC 6.5.0. this is largely a maint release with no particularly features listed here: http://gcc.gnu.org/gcc-6/changes.html this fixes over 250 PRs in the GCC bugzilla: https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.5 @ text @d2 1 a2 1
Prev Part III.  @ 1.1.1.1.8.1 log @file ext_preface.html was added on branch tls-maxphys on 2014-08-19 23:54:46 +0000 @ text @d1 26 @ 1.1.1.1.8.2 log @Rebase to HEAD as of a few days ago. @ text @a0 26
Prev Part III.  Extensions  Next

Here we will make an attempt at describing the non-Standard extensions to the library. Some of these are from older versions of standard library components, namely SGI's STL, and some of these are GNU's.

Before you leap in and use any of these extensions, be aware of two things:

  1. Non-Standard means exactly that.

    The behavior, and the very existence, of these extensions may change with little or no warning. (Ideally, the really good ones will appear in the next revision of C++.) Also, other platforms, other compilers, other versions of g++ or libstdc++ may not recognize these names, or treat them differently, or...

  2. You should know how to access these headers properly.

Prev Up Next
Part III.  Extensions  Home Chapter 16. Compile Time Checks
@ 1.1.1.1.4.1 log @file ext_preface.html was added on branch yamt-pagecache on 2014-05-22 16:37:45 +0000 @ text @d1 26 @ 1.1.1.1.4.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 26
Prev Part III.  Extensions  Next

Here we will make an attempt at describing the non-Standard extensions to the library. Some of these are from older versions of standard library components, namely SGI's STL, and some of these are GNU's.

Before you leap in and use any of these extensions, be aware of two things:

  1. Non-Standard means exactly that.

    The behavior, and the very existence, of these extensions may change with little or no warning. (Ideally, the really good ones will appear in the next revision of C++.) Also, other platforms, other compilers, other versions of g++ or libstdc++ may not recognize these names, or treat them differently, or...

  2. You should know how to access these headers properly.

Prev Up Next
Part III.  Extensions  Home Chapter 16. Compile Time Checks
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