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author | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
commit | 82bcbebce43f0227f506d75a5b764b6847041bae (patch) | |
tree | fe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/libiberty/rename.c | |
parent | 3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff) | |
download | toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.gz toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.bz2 toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.zip |
Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/libiberty/rename.c')
-rw-r--r-- | gcc-4.7/libiberty/rename.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.7/libiberty/rename.c b/gcc-4.7/libiberty/rename.c new file mode 100644 index 000000000..ad342ffca --- /dev/null +++ b/gcc-4.7/libiberty/rename.c @@ -0,0 +1,36 @@ +/* rename -- rename a file + This function is in the public domain. */ + +/* + +@deftypefn Supplemental int rename (const char *@var{old}, const char *@var{new}) + +Renames a file from @var{old} to @var{new}. If @var{new} already +exists, it is removed. + +@end deftypefn + +*/ + +#include "ansidecl.h" +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include <errno.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +int +rename (const char *zfrom, const char *zto) +{ + if (link (zfrom, zto) < 0) + { + if (errno != EEXIST) + return -1; + if (unlink (zto) < 0 + || link (zfrom, zto) < 0) + return -1; + } + return unlink (zfrom); +} |