diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_string.h')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_string.h | 452 |
1 files changed, 232 insertions, 220 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_string.h b/mesalib/src/gallium/auxiliary/util/u_string.h index 52e380698..ed15981f1 100644 --- a/mesalib/src/gallium/auxiliary/util/u_string.h +++ b/mesalib/src/gallium/auxiliary/util/u_string.h @@ -1,220 +1,232 @@ -/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * Platform independent functions for string manipulation.
- *
- * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
- */
-
-#ifndef U_STRING_H_
-#define U_STRING_H_
-
-#if !defined(WIN32) && !defined(XF86_LIBC_H)
-#include <stdio.h>
-#endif
-#include <stddef.h>
-#include <stdarg.h>
-
-#include "pipe/p_compiler.h"
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-#ifdef WIN32
-
-int util_vsnprintf(char *, size_t, const char *, va_list);
-int util_snprintf(char *str, size_t size, const char *format, ...);
-
-static INLINE void
-util_vsprintf(char *str, const char *format, va_list ap)
-{
- util_vsnprintf(str, (size_t)-1, format, ap);
-}
-
-static INLINE void
-util_sprintf(char *str, const char *format, ...)
-{
- va_list ap;
- va_start(ap, format);
- util_vsnprintf(str, (size_t)-1, format, ap);
- va_end(ap);
-}
-
-static INLINE char *
-util_strchr(const char *s, char c)
-{
- while(*s) {
- if(*s == c)
- return (char *)s;
- ++s;
- }
- return NULL;
-}
-
-static INLINE char*
-util_strncat(char *dst, const char *src, size_t n)
-{
- char *p = dst + strlen(dst);
- const char *q = src;
- size_t i;
-
- for (i = 0; i < n && *q != '\0'; ++i)
- *p++ = *q++;
- *p = '\0';
-
- return dst;
-}
-
-static INLINE int
-util_strcmp(const char *s1, const char *s2)
-{
- unsigned char u1, u2;
-
- while (1) {
- u1 = (unsigned char) *s1++;
- u2 = (unsigned char) *s2++;
- if (u1 != u2)
- return u1 - u2;
- if (u1 == '\0')
- return 0;
- }
- return 0;
-}
-
-static INLINE int
-util_strncmp(const char *s1, const char *s2, size_t n)
-{
- unsigned char u1, u2;
-
- while (n-- > 0) {
- u1 = (unsigned char) *s1++;
- u2 = (unsigned char) *s2++;
- if (u1 != u2)
- return u1 - u2;
- if (u1 == '\0')
- return 0;
- }
- return 0;
-}
-
-static INLINE char *
-util_strstr(const char *haystack, const char *needle)
-{
- const char *p = haystack;
- size_t len = strlen(needle);
-
- for (; (p = util_strchr(p, *needle)) != 0; p++) {
- if (util_strncmp(p, needle, len) == 0) {
- return (char *)p;
- }
- }
- return NULL;
-}
-
-static INLINE void *
-util_memmove(void *dest, const void *src, size_t n)
-{
- char *p = (char *)dest;
- const char *q = (const char *)src;
- if (dest < src) {
- while (n--)
- *p++ = *q++;
- }
- else
- {
- p += n;
- q += n;
- while (n--)
- *--p = *--q;
- }
- return dest;
-}
-
-
-#else
-
-#define util_vsnprintf vsnprintf
-#define util_snprintf snprintf
-#define util_vsprintf vsprintf
-#define util_sprintf sprintf
-#define util_strchr strchr
-#define util_strcmp strcmp
-#define util_strncmp strncmp
-#define util_strncat strncat
-#define util_strstr strstr
-#define util_memmove memmove
-
-#endif
-
-
-/**
- * Printable string buffer
- */
-struct util_strbuf
-{
- char *str;
- char *ptr;
- size_t left;
-};
-
-
-static INLINE void
-util_strbuf_init(struct util_strbuf *sbuf, char *str, size_t size)
-{
- sbuf->str = str;
- sbuf->str[0] = 0;
- sbuf->ptr = sbuf->str;
- sbuf->left = size;
-}
-
-
-static INLINE void
-util_strbuf_printf(struct util_strbuf *sbuf, const char *format, ...)
-{
- if(sbuf->left > 1) {
- size_t written;
- va_list ap;
- va_start(ap, format);
- written = util_vsnprintf(sbuf->ptr, sbuf->left, format, ap);
- va_end(ap);
- sbuf->ptr += written;
- sbuf->left -= written;
- }
-}
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* U_STRING_H_ */
+/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * Platform independent functions for string manipulation. + * + * @author Jose Fonseca <jrfonseca@tungstengraphics.com> + */ + +#ifndef U_STRING_H_ +#define U_STRING_H_ + +#if !defined(WIN32) && !defined(XF86_LIBC_H) +#include <stdio.h> +#endif +#include <stddef.h> +#include <stdarg.h> + +#include "pipe/p_compiler.h" + + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef _GNU_SOURCE + +#define util_strchrnul strchrnul + +#else + +static INLINE char * +util_strchrnul(const char *s, char c) +{ + for (; *s && *s != c; ++s); + + return (char *)s; +} + +#endif + +#ifdef WIN32 + +int util_vsnprintf(char *, size_t, const char *, va_list); +int util_snprintf(char *str, size_t size, const char *format, ...); + +static INLINE void +util_vsprintf(char *str, const char *format, va_list ap) +{ + util_vsnprintf(str, (size_t)-1, format, ap); +} + +static INLINE void +util_sprintf(char *str, const char *format, ...) +{ + va_list ap; + va_start(ap, format); + util_vsnprintf(str, (size_t)-1, format, ap); + va_end(ap); +} + +static INLINE char * +util_strchr(const char *s, char c) +{ + char *p = util_strchrnul(s, c); + + return *p ? p : NULL; +} + +static INLINE char* +util_strncat(char *dst, const char *src, size_t n) +{ + char *p = dst + strlen(dst); + const char *q = src; + size_t i; + + for (i = 0; i < n && *q != '\0'; ++i) + *p++ = *q++; + *p = '\0'; + + return dst; +} + +static INLINE int +util_strcmp(const char *s1, const char *s2) +{ + unsigned char u1, u2; + + while (1) { + u1 = (unsigned char) *s1++; + u2 = (unsigned char) *s2++; + if (u1 != u2) + return u1 - u2; + if (u1 == '\0') + return 0; + } + return 0; +} + +static INLINE int +util_strncmp(const char *s1, const char *s2, size_t n) +{ + unsigned char u1, u2; + + while (n-- > 0) { + u1 = (unsigned char) *s1++; + u2 = (unsigned char) *s2++; + if (u1 != u2) + return u1 - u2; + if (u1 == '\0') + return 0; + } + return 0; +} + +static INLINE char * +util_strstr(const char *haystack, const char *needle) +{ + const char *p = haystack; + size_t len = strlen(needle); + + for (; (p = util_strchr(p, *needle)) != 0; p++) { + if (util_strncmp(p, needle, len) == 0) { + return (char *)p; + } + } + return NULL; +} + +static INLINE void * +util_memmove(void *dest, const void *src, size_t n) +{ + char *p = (char *)dest; + const char *q = (const char *)src; + if (dest < src) { + while (n--) + *p++ = *q++; + } + else + { + p += n; + q += n; + while (n--) + *--p = *--q; + } + return dest; +} + + +#else + +#define util_vsnprintf vsnprintf +#define util_snprintf snprintf +#define util_vsprintf vsprintf +#define util_sprintf sprintf +#define util_strchr strchr +#define util_strcmp strcmp +#define util_strncmp strncmp +#define util_strncat strncat +#define util_strstr strstr +#define util_memmove memmove + +#endif + + +/** + * Printable string buffer + */ +struct util_strbuf +{ + char *str; + char *ptr; + size_t left; +}; + + +static INLINE void +util_strbuf_init(struct util_strbuf *sbuf, char *str, size_t size) +{ + sbuf->str = str; + sbuf->str[0] = 0; + sbuf->ptr = sbuf->str; + sbuf->left = size; +} + + +static INLINE void +util_strbuf_printf(struct util_strbuf *sbuf, const char *format, ...) +{ + if(sbuf->left > 1) { + size_t written; + va_list ap; + va_start(ap, format); + written = util_vsnprintf(sbuf->ptr, sbuf->left, format, ap); + va_end(ap); + sbuf->ptr += written; + sbuf->left -= written; + } +} + + + +#ifdef __cplusplus +} +#endif + +#endif /* U_STRING_H_ */ |