blob: 634aa328bc3c05378db5cca4812147142ecd2b8b [file] [log] [blame]
 /* * 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 #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 #include #include #include #include #include #ifdef HAVE_STRINGS_H #include #endif #include #include #ifdef lint # define _(String) String #else # ifdef HAVE_LOCALE_H # include # endif # ifdef ENABLE_NLS # include # 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 #ifdef WITH_DMALLOC # include # 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