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| author | Nick Kralevich <nnk@google.com> | 2012-03-21 14:40:41 -0700 |
|---|---|---|
| committer | Android (Google) Code Review <android-gerrit@google.com> | 2012-03-21 14:40:41 -0700 |
| commit | 891966d0209b17d27d8d1f7a94bc6404be93f7bf (patch) | |
| tree | 20719cfd7d01b542682746d730f78fb29fc715ca /libc | |
| parent | 1ca0b9d158f8d536a777fdb2cef6adadfea9c176 (diff) | |
| parent | a677907ee8ecca034318fdb97902fa73e7392c4f (diff) | |
| download | android_bionic-891966d0209b17d27d8d1f7a94bc6404be93f7bf.tar.gz android_bionic-891966d0209b17d27d8d1f7a94bc6404be93f7bf.tar.bz2 android_bionic-891966d0209b17d27d8d1f7a94bc6404be93f7bf.zip | |
Merge "string.h: add __attribute__ ((pure)) to string functions"
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/include/string.h | 38 | ||||
| -rw-r--r-- | libc/include/sys/cdefs.h | 2 |
2 files changed, 21 insertions, 19 deletions
diff --git a/libc/include/string.h b/libc/include/string.h index 613dcd78a..6e6c8e693 100644 --- a/libc/include/string.h +++ b/libc/include/string.h @@ -35,54 +35,54 @@ __BEGIN_DECLS extern void* memccpy(void *, const void *, int, size_t); -extern void* memchr(const void *, int, size_t); -extern void* memrchr(const void *, int, size_t); -extern int memcmp(const void *, const void *, size_t); +extern void* memchr(const void *, int, size_t) __purefunc; +extern void* memrchr(const void *, int, size_t) __purefunc; +extern int memcmp(const void *, const void *, size_t) __purefunc; extern void* memcpy(void *, const void *, size_t); extern void* memmove(void *, const void *, size_t); extern void* memset(void *, int, size_t); -extern void* memmem(const void *, size_t, const void *, size_t); +extern void* memmem(const void *, size_t, const void *, size_t) __purefunc; extern void memswap(void *, void *, size_t); -extern char* index(const char *, int); -extern char* rindex(const char *, int); -extern char* strchr(const char *, int); -extern char* strrchr(const char *, int); +extern char* index(const char *, int) __purefunc; +extern char* rindex(const char *, int) __purefunc; +extern char* strchr(const char *, int) __purefunc; +extern char* strrchr(const char *, int) __purefunc; -extern size_t strlen(const char *); -extern int strcmp(const char *, const char *); +extern size_t strlen(const char *) __purefunc; +extern int strcmp(const char *, const char *) __purefunc; extern char* strcpy(char *, const char *); extern char* strcat(char *, const char *); -extern int strcasecmp(const char *, const char *); -extern int strncasecmp(const char *, const char *, size_t); +extern int strcasecmp(const char *, const char *) __purefunc; +extern int strncasecmp(const char *, const char *, size_t) __purefunc; extern char* strdup(const char *); -extern char* strstr(const char *, const char *); -extern char* strcasestr(const char *haystack, const char *needle); +extern char* strstr(const char *, const char *) __purefunc; +extern char* strcasestr(const char *haystack, const char *needle) __purefunc; extern char* strtok(char *, const char *); extern char* strtok_r(char *, const char *, char**); extern char* strerror(int); extern int strerror_r(int errnum, char *buf, size_t n); -extern size_t strnlen(const char *, size_t); +extern size_t strnlen(const char *, size_t) __purefunc; extern char* strncat(char *, const char *, size_t); extern char* strndup(const char *, size_t); -extern int strncmp(const char *, const char *, size_t); +extern int strncmp(const char *, const char *, size_t) __purefunc; extern char* strncpy(char *, const char *, size_t); extern size_t strlcat(char *, const char *, size_t); extern size_t strlcpy(char *, const char *, size_t); -extern size_t strcspn(const char *, const char *); -extern char* strpbrk(const char *, const char *); +extern size_t strcspn(const char *, const char *) __purefunc; +extern char* strpbrk(const char *, const char *) __purefunc; extern char* strsep(char **, const char *); extern size_t strspn(const char *, const char *); extern char* strsignal(int sig); -extern int strcoll(const char *, const char *); +extern int strcoll(const char *, const char *) __purefunc; extern size_t strxfrm(char *, const char *, size_t); __END_DECLS diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h index 92035d428..71b419ce4 100644 --- a/libc/include/sys/cdefs.h +++ b/libc/include/sys/cdefs.h @@ -306,9 +306,11 @@ #if __GNUC_PREREQ__(2, 96) #define __noreturn __attribute__((__noreturn__)) #define __mallocfunc __attribute__((malloc)) +#define __purefunc __attribute__((pure)) #else #define __noreturn #define __mallocfunc +#define __purefunc #endif /* |