[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [51241] trunk/blender/source/blender/ blenlib: use __restrict for string functions args so the compiler can assume they dont overlap .
Campbell Barton
ideasman42 at gmail.com
Wed Oct 10 06:47:54 CEST 2012
Revision: 51241
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=51241
Author: campbellbarton
Date: 2012-10-10 04:47:53 +0000 (Wed, 10 Oct 2012)
Log Message:
-----------
use __restrict for string functions args so the compiler can assume they dont overlap.
also avoid comparing int/size_t in for loops.
Modified Paths:
--------------
trunk/blender/source/blender/blenlib/BLI_string.h
trunk/blender/source/blender/blenlib/BLI_string_utf8.h
trunk/blender/source/blender/blenlib/intern/string.c
Modified: trunk/blender/source/blender/blenlib/BLI_string.h
===================================================================
--- trunk/blender/source/blender/blenlib/BLI_string.h 2012-10-10 04:03:22 UTC (rev 51240)
+++ trunk/blender/source/blender/blenlib/BLI_string.h 2012-10-10 04:47:53 UTC (rev 51241)
@@ -74,7 +74,7 @@
* \param str2 second string for append
* \retval Returns dst
*/
-char *BLI_strdupcat(const char *str1, const char *str2)
+char *BLI_strdupcat(const char *__restrict str1, const char *__restrict str2)
#ifdef __GNUC__
__attribute__((warn_unused_result))
__attribute__((nonnull))
@@ -91,7 +91,7 @@
* the size of dst)
* \retval Returns dst
*/
-char *BLI_strncpy(char *dst, const char *src, const size_t maxncpy)
+char *BLI_strncpy(char *__restrict dst, const char *__restrict src, const size_t maxncpy)
#ifdef __GNUC__
__attribute__((nonnull))
#endif
@@ -107,7 +107,7 @@
* Assume that the strings returned must be freed afterwards, and that the inputs will contain
* data we want...
*/
-char *BLI_str_quoted_substrN(const char *str, const char *prefix)
+char *BLI_str_quoted_substrN(const char *__restrict str, const char *__restrict prefix)
#ifdef __GNUC__
__attribute__((warn_unused_result))
__attribute__((nonnull))
@@ -124,7 +124,7 @@
* \param newText The text in the string to find and replace
* \retval Returns the duplicated string
*/
-char *BLI_replacestr(char *str, const char *oldText, const char *newText)
+char *BLI_replacestr(char *__restrict str, const char *__restrict oldText, const char *__restrict newText)
#ifdef __GNUC__
__attribute__((warn_unused_result))
__attribute__((nonnull))
@@ -134,7 +134,7 @@
/*
* Replacement for snprintf
*/
-size_t BLI_snprintf(char *buffer, size_t len, const char *format, ...)
+size_t BLI_snprintf(char *__restrict buffer, size_t len, const char *__restrict format, ...)
#ifdef __GNUC__
__attribute__ ((format(printf, 3, 4)))
__attribute__((nonnull))
@@ -144,7 +144,7 @@
/*
* Replacement for vsnprintf
*/
-size_t BLI_vsnprintf(char *buffer, size_t count, const char *format, va_list arg)
+size_t BLI_vsnprintf(char *__restrict buffer, size_t count, const char *__restrict format, va_list arg)
#ifdef __GNUC__
__attribute__ ((format(printf, 3, 0)))
#endif
@@ -154,7 +154,7 @@
* Print formatted string into a newly mallocN'd string
* and return it.
*/
-char *BLI_sprintfN(const char *format, ...)
+char *BLI_sprintfN(const char *__restrict format, ...)
#ifdef __GNUC__
__attribute__ ((format(printf, 1, 2)))
__attribute__((warn_unused_result))
@@ -162,7 +162,7 @@
#endif
;
-size_t BLI_strescape(char *dst, const char *src, const size_t maxlen)
+size_t BLI_strescape(char *__restrict dst, const char *__restrict src, const size_t maxlen)
#ifdef __GNUC__
__attribute__((nonnull))
#endif
@@ -216,12 +216,12 @@
#endif
; /* time var is global */
-void BLI_ascii_strtolower(char *str, int len)
+void BLI_ascii_strtolower(char *str, const size_t len)
#ifdef __GNUC__
__attribute__((nonnull))
#endif
;
-void BLI_ascii_strtoupper(char *str, int len)
+void BLI_ascii_strtoupper(char *str, const size_t len)
#ifdef __GNUC__
__attribute__((nonnull))
#endif
Modified: trunk/blender/source/blender/blenlib/BLI_string_utf8.h
===================================================================
--- trunk/blender/source/blender/blenlib/BLI_string_utf8.h 2012-10-10 04:03:22 UTC (rev 51240)
+++ trunk/blender/source/blender/blenlib/BLI_string_utf8.h 2012-10-10 04:47:53 UTC (rev 51241)
@@ -31,16 +31,16 @@
extern "C" {
#endif
-char *BLI_strncpy_utf8(char *dst, const char *src, size_t maxncpy);
-char *BLI_strncat_utf8(char *dst, const char *src, size_t maxncpy);
+char *BLI_strncpy_utf8(char *__restrict dst, const char *__restrict src, size_t maxncpy);
+char *BLI_strncat_utf8(char *__restrict dst, const char *__restrict src, size_t maxncpy);
int BLI_utf8_invalid_byte(const char *str, int length);
int BLI_utf8_invalid_strip(char *str, int length);
int BLI_str_utf8_size(const char *p); /* warning, can return -1 on bad chars */
/* copied from glib */
unsigned int BLI_str_utf8_as_unicode(const char *p);
-unsigned int BLI_str_utf8_as_unicode_and_size(const char *p, size_t *index);
-unsigned int BLI_str_utf8_as_unicode_step(const char *p, size_t *index);
+unsigned int BLI_str_utf8_as_unicode_and_size(const char *__restrict p, size_t *__restrict index);
+unsigned int BLI_str_utf8_as_unicode_step(const char *__restrict p, size_t *__restrict index);
size_t BLI_str_utf8_from_unicode(unsigned int c, char *outbuf);
char *BLI_str_find_prev_char_utf8(const char *str, const char *p);
@@ -50,8 +50,8 @@
/* wchar_t functions, copied from blenders own font.c originally */
size_t BLI_wstrlen_utf8(const wchar_t *src);
size_t BLI_strlen_utf8(const char *strc);
-size_t BLI_strncpy_wchar_as_utf8(char *dst, const wchar_t *src, const size_t maxcpy);
-size_t BLI_strncpy_wchar_from_utf8(wchar_t *dst, const char *src, const size_t maxcpy);
+size_t BLI_strncpy_wchar_as_utf8(char *__restrict dst, const wchar_t *__restrict src, const size_t maxcpy);
+size_t BLI_strncpy_wchar_from_utf8(wchar_t *__restrict dst, const char *__restrict src, const size_t maxcpy);
#define BLI_UTF8_MAX 6
#define BLI_UTF8_ERR ((unsigned int)-1)
Modified: trunk/blender/source/blender/blenlib/intern/string.c
===================================================================
--- trunk/blender/source/blender/blenlib/intern/string.c 2012-10-10 04:03:22 UTC (rev 51240)
+++ trunk/blender/source/blender/blenlib/intern/string.c 2012-10-10 04:47:53 UTC (rev 51241)
@@ -296,11 +296,12 @@
int BLI_strcasecmp(const char *s1, const char *s2)
{
- int i;
+ register int i;
+ register char c1, c2;
for (i = 0;; i++) {
- char c1 = tolower(s1[i]);
- char c2 = tolower(s2[i]);
+ c1 = tolower(s1[i]);
+ c2 = tolower(s2[i]);
if (c1 < c2) {
return -1;
@@ -318,11 +319,12 @@
int BLI_strncasecmp(const char *s1, const char *s2, size_t len)
{
- int i;
+ register size_t i;
+ register char c1, c2;
for (i = 0; i < len; i++) {
- char c1 = tolower(s1[i]);
- char c2 = tolower(s2[i]);
+ c1 = tolower(s1[i]);
+ c2 = tolower(s2[i]);
if (c1 < c2) {
return -1;
@@ -341,15 +343,16 @@
/* natural string compare, keeping numbers in order */
int BLI_natstrcmp(const char *s1, const char *s2)
{
- int d1 = 0, d2 = 0;
+ register int d1 = 0, d2 = 0;
+ register char c1, c2;
/* if both chars are numeric, to a strtol().
* then increase string deltas as long they are
* numeric, else do a tolower and char compare */
while (1) {
- char c1 = tolower(s1[d1]);
- char c2 = tolower(s2[d2]);
+ c1 = tolower(s1[d1]);
+ c2 = tolower(s2[d2]);
if (isdigit(c1) && isdigit(c2) ) {
int val1, val2;
@@ -419,18 +422,18 @@
return end ? (size_t) (end - str) : maxlen;
}
-void BLI_ascii_strtolower(char *str, int len)
+void BLI_ascii_strtolower(char *str, const size_t len)
{
- int i;
+ size_t i;
for (i = 0; i < len; i++)
if (str[i] >= 'A' && str[i] <= 'Z')
str[i] += 'a' - 'A';
}
-void BLI_ascii_strtoupper(char *str, int len)
+void BLI_ascii_strtoupper(char *str, const size_t len)
{
- int i;
+ size_t i;
for (i = 0; i < len; i++)
if (str[i] >= 'a' && str[i] <= 'z')
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