aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.2.1/libiberty/rename.c
diff options
context:
space:
mode:
authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.2.1/libiberty/rename.c
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
downloadtoolchain_gcc-df62c1c110e8532b995b23540b7e3695729c0779.tar.gz
toolchain_gcc-df62c1c110e8532b995b23540b7e3695729c0779.tar.bz2
toolchain_gcc-df62c1c110e8532b995b23540b7e3695729c0779.zip
Check in gcc sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'gcc-4.2.1/libiberty/rename.c')
-rw-r--r--gcc-4.2.1/libiberty/rename.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.2.1/libiberty/rename.c b/gcc-4.2.1/libiberty/rename.c
new file mode 100644
index 000000000..ad342ffca
--- /dev/null
+++ b/gcc-4.2.1/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);
+}