48fb7bfab7
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/
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* Libiberty basename. Like basename, but is not overridden by the
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system C library.
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Copyright (C) 2001, 2002, 2010 Free Software Foundation, Inc.
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This file is part of the libiberty library.
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Libiberty is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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Libiberty is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with libiberty; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/*
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@deftypefn Replacement {const char*} lbasename (const char *@var{name})
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Given a pointer to a string containing a typical pathname
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(@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
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last component of the pathname (@samp{ls.c} in this case). The
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returned pointer is guaranteed to lie within the original
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string. This latter fact is not true of many vendor C
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libraries, which return special strings or modify the passed
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strings for particular input.
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In particular, the empty string returns the same empty string,
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and a path ending in @code{/} returns the empty string after it.
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@end deftypefn
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ansidecl.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#include "filenames.h"
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const char *
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unix_lbasename (const char *name)
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{
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const char *base;
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for (base = name; *name; name++)
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if (IS_UNIX_DIR_SEPARATOR (*name))
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base = name + 1;
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return base;
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}
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const char *
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dos_lbasename (const char *name)
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{
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const char *base;
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/* Skip over a possible disk name. */
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if (ISALPHA (name[0]) && name[1] == ':')
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name += 2;
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for (base = name; *name; name++)
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if (IS_DOS_DIR_SEPARATOR (*name))
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base = name + 1;
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return base;
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}
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const char *
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lbasename (const char *name)
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{
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#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
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return dos_lbasename (name);
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#else
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return unix_lbasename (name);
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#endif
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}
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