160 lines
4.9 KiB
C
160 lines
4.9 KiB
C
/*
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* YASM utility functions.
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*
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* Includes standard headers and defines prototypes for replacement functions
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* if needed.
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*
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* Copyright (C) 2001-2007 Peter Johnson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef YASM_UTIL_H
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#define YASM_UTIL_H
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#if defined(HAVE_GNU_C_LIBRARY) || defined(__MINGW32__) || defined(__DJGPP__)
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/* Work around glibc's non-defining of certain things when using gcc -ansi */
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# ifdef __STRICT_ANSI__
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# undef __STRICT_ANSI__
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# endif
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/* Work around glibc's string inlines (in bits/string2.h) if needed */
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# ifdef NO_STRING_INLINES
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# define __NO_STRING_INLINES
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# endif
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#endif
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#if !defined(lint) && !defined(NDEBUG)
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# define NDEBUG
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#include <libyasm-stdint.h>
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#include <libyasm/coretype.h>
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#ifdef lint
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# define _(String) String
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#else
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# ifdef HAVE_LOCALE_H
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# include <locale.h>
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# endif
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# ifdef ENABLE_NLS
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# include <libintl.h>
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# define _(String) gettext(String)
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# else
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# define gettext(Msgid) (Msgid)
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# define dgettext(Domainname, Msgid) (Msgid)
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# define dcgettext(Domainname, Msgid, Category) (Msgid)
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# define textdomain(Domainname) while (0) /* nothing */
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# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
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# define _(String) (String)
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# endif
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#endif
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#ifdef gettext_noop
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# define N_(String) gettext_noop(String)
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#else
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# define N_(String) (String)
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#endif
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#ifdef HAVE_MERGESORT
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#define yasm__mergesort(a, b, c, d) mergesort(a, b, c, d)
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#endif
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#ifdef HAVE_STRSEP
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#define yasm__strsep(a, b) strsep(a, b)
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#endif
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#ifdef HAVE_STRCASECMP
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# define yasm__strcasecmp(x, y) strcasecmp(x, y)
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# define yasm__strncasecmp(x, y, n) strncasecmp(x, y, n)
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#elif HAVE_STRICMP
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# define yasm__strcasecmp(x, y) stricmp(x, y)
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# define yasm__strncasecmp(x, y, n) strnicmp(x, y, n)
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#elif HAVE__STRICMP
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# define yasm__strcasecmp(x, y) _stricmp(x, y)
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# define yasm__strncasecmp(x, y, n) _strnicmp(x, y, n)
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#elif HAVE_STRCMPI
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# define yasm__strcasecmp(x, y) strcmpi(x, y)
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# define yasm__strncasecmp(x, y, n) strncmpi(x, y, n)
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#else
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# define USE_OUR_OWN_STRCASECMP
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#endif
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#include <libyasm/compat-queue.h>
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#ifdef WITH_DMALLOC
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# include <dmalloc.h>
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# define yasm__xstrdup(str) xstrdup(str)
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# define yasm_xmalloc(size) xmalloc(size)
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# define yasm_xcalloc(count, size) xcalloc(count, size)
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# define yasm_xrealloc(ptr, size) xrealloc(ptr, size)
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# define yasm_xfree(ptr) xfree(ptr)
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#endif
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/* Bit-counting: used primarily by HAMT but also in a few other places. */
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#define BC_TWO(c) (0x1ul << (c))
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#define BC_MSK(c) (((unsigned long)(-1)) / (BC_TWO(BC_TWO(c)) + 1ul))
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#define BC_COUNT(x,c) ((x) & BC_MSK(c)) + (((x) >> (BC_TWO(c))) & BC_MSK(c))
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#define BitCount(d, s) do { \
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d = BC_COUNT(s, 0); \
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d = BC_COUNT(d, 1); \
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d = BC_COUNT(d, 2); \
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d = BC_COUNT(d, 3); \
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d = BC_COUNT(d, 4); \
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} while (0)
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/** Determine if a value is exactly a power of 2. Zero is treated as a power
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* of two.
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* \param x value
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* \return Nonzero if x is a power of 2.
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*/
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#define is_exp2(x) ((x & (x - 1)) == 0)
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#ifndef NELEMS
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/** Get the number of elements in an array.
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* \internal
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* \param array array
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* \return Number of elements.
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*/
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#define NELEMS(array) (sizeof(array) / sizeof(array[0]))
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#endif
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#endif
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