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| author | Rich Felker <dalias@aerifal.cx> | 2012-09-06 22:44:55 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-09-06 22:44:55 -0400 |
| commit | 400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch) | |
| tree | 087a48dc8251fa05f6866af8ebf96b69450b15ab /include/unistd.h | |
| parent | bac03cdde1137c16b4c194e137310e2748661dcc (diff) | |
| download | musl-400c5e5c8307a2ebe44ef1f203f5a15669f20347.tar.gz musl-400c5e5c8307a2ebe44ef1f203f5a15669f20347.tar.xz musl-400c5e5c8307a2ebe44ef1f203f5a15669f20347.zip | |
use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
Diffstat (limited to 'include/unistd.h')
| -rw-r--r-- | include/unistd.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/unistd.h b/include/unistd.h index 12d153b8..ecb23f81 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -5,6 +5,12 @@ extern "C" { #endif +#if __STDC_VERSION__ >= 199901L +#define __restrict restrict +#elif !defined(__GNUC__) +#define __restrict +#endif + #define STDIN_FILENO 0 #define STDOUT_FILENO 1 #define STDERR_FILENO 2 @@ -52,8 +58,8 @@ int link(const char *, const char *); int linkat(int, const char *, int, const char *, int); int symlink(const char *, const char *); int symlinkat(const char *, int, const char *); -ssize_t readlink(const char *, char *, size_t); -ssize_t readlinkat(int, const char *, char *, size_t); +ssize_t readlink(const char *__restrict, char *__restrict, size_t); +ssize_t readlinkat(int, const char *__restrict, char *__restrict, size_t); int unlink(const char *); int unlinkat(int, const char *, int); int rmdir(const char *); @@ -141,7 +147,7 @@ void sync(void); pid_t setpgrp(void); char *crypt(const char *, const char *); void encrypt(char *, int); -void swab(const void *, void *, ssize_t); +void swab(const void *__restrict, void *__restrict, ssize_t); #endif #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ |