diff options
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 159 |
1 files changed, 159 insertions, 0 deletions
@@ -0,0 +1,159 @@ +/* + * YASM utility functions. + * + * Includes standard headers and defines prototypes for replacement functions + * if needed. + * + * Copyright (C) 2001-2007 Peter Johnson + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef YASM_UTIL_H +#define YASM_UTIL_H + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#if defined(HAVE_GNU_C_LIBRARY) || defined(__MINGW32__) || defined(__DJGPP__) + +/* Work around glibc's non-defining of certain things when using gcc -ansi */ +# ifdef __STRICT_ANSI__ +# undef __STRICT_ANSI__ +# endif + +/* Work around glibc's string inlines (in bits/string2.h) if needed */ +# ifdef NO_STRING_INLINES +# define __NO_STRING_INLINES +# endif + +#endif + +#if !defined(lint) && !defined(NDEBUG) +# define NDEBUG +#endif + +#include <stdio.h> +#include <stdarg.h> + +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> + +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif + +#include <libyasm-stdint.h> +#include <libyasm/coretype.h> + +#ifdef lint +# define _(String) String +#else +# ifdef HAVE_LOCALE_H +# include <locale.h> +# endif + +# ifdef ENABLE_NLS +# include <libintl.h> +# define _(String) gettext(String) +# else +# define gettext(Msgid) (Msgid) +# define dgettext(Domainname, Msgid) (Msgid) +# define dcgettext(Domainname, Msgid, Category) (Msgid) +# define textdomain(Domainname) while (0) /* nothing */ +# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ +# define _(String) (String) +# endif +#endif + +#ifdef gettext_noop +# define N_(String) gettext_noop(String) +#else +# define N_(String) (String) +#endif + +#ifdef HAVE_MERGESORT +#define yasm__mergesort(a, b, c, d) mergesort(a, b, c, d) +#endif + +#ifdef HAVE_STRSEP +#define yasm__strsep(a, b) strsep(a, b) +#endif + +#ifdef HAVE_STRCASECMP +# define yasm__strcasecmp(x, y) strcasecmp(x, y) +# define yasm__strncasecmp(x, y, n) strncasecmp(x, y, n) +#elif HAVE_STRICMP +# define yasm__strcasecmp(x, y) stricmp(x, y) +# define yasm__strncasecmp(x, y, n) strnicmp(x, y, n) +#elif HAVE__STRICMP +# define yasm__strcasecmp(x, y) _stricmp(x, y) +# define yasm__strncasecmp(x, y, n) _strnicmp(x, y, n) +#elif HAVE_STRCMPI +# define yasm__strcasecmp(x, y) strcmpi(x, y) +# define yasm__strncasecmp(x, y, n) strncmpi(x, y, n) +#else +# define USE_OUR_OWN_STRCASECMP +#endif + +#include <libyasm/compat-queue.h> + +#ifdef WITH_DMALLOC +# include <dmalloc.h> +# define yasm__xstrdup(str) xstrdup(str) +# define yasm_xmalloc(size) xmalloc(size) +# define yasm_xcalloc(count, size) xcalloc(count, size) +# define yasm_xrealloc(ptr, size) xrealloc(ptr, size) +# define yasm_xfree(ptr) xfree(ptr) +#endif + +/* Bit-counting: used primarily by HAMT but also in a few other places. */ +#define BC_TWO(c) (0x1ul << (c)) +#define BC_MSK(c) (((unsigned long)(-1)) / (BC_TWO(BC_TWO(c)) + 1ul)) +#define BC_COUNT(x,c) ((x) & BC_MSK(c)) + (((x) >> (BC_TWO(c))) & BC_MSK(c)) +#define BitCount(d, s) do { \ + d = BC_COUNT(s, 0); \ + d = BC_COUNT(d, 1); \ + d = BC_COUNT(d, 2); \ + d = BC_COUNT(d, 3); \ + d = BC_COUNT(d, 4); \ + } while (0) + +/** Determine if a value is exactly a power of 2. Zero is treated as a power + * of two. + * \param x value + * \return Nonzero if x is a power of 2. + */ +#define is_exp2(x) ((x & (x - 1)) == 0) + +#ifndef NELEMS +/** Get the number of elements in an array. + * \internal + * \param array array + * \return Number of elements. + */ +#define NELEMS(array) (sizeof(array) / sizeof(array[0])) +#endif + +#endif |