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c9ac9147cf
* argv.c: Fix comments. * calloc.c: Don't unnecessarily include "libiberty.h". (bzero): Add prototype. * floatformat.c: Include "ansidecl.h", rely on ANSI_PROTOTYPES. * getcwd.c (getcwd): Use standard definition to avoid conflicts with system headers. * hashtab.c (htab_traverse): Delete unused variables. * rename.c: Include "ansidecl.h". (rename): Use standard definition to avoid conflicts with system headers. * strsignal.c: Rely on ANSI_PROTOTYPES. * strstr.c: Check GNUC >= 2, not GNUC == 2. * vfprintf.c: Include "ansidecl.h", rely on ANSI_PROTOTYPES. * vprintf.c: Include "ansidecl.h" earlier, rely on ANSI_PROTOTYPES. * vsprintf.c: Include "ansidecl.h" earlier, rely on ANSI_PROTOTYPES and possibly include <stdarg.h>. * Makefile.in: Regenerate dependencies. From-SVN: r65659
39 lines
655 B
C
39 lines
655 B
C
/* rename -- rename a file
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This function is in the public domain. */
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/*
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@deftypefn Supplemental int rename (const char *@var{old}, const char *@var{new})
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Renames a file from @var{old} to @var{new}. If @var{new} already
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exists, it is removed.
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@end deftypefn
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*/
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#include "ansidecl.h"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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int
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rename (zfrom, zto)
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const char *zfrom;
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const char *zto;
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{
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if (link (zfrom, zto) < 0)
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{
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if (errno != EEXIST)
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return -1;
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if (unlink (zto) < 0
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|| link (zfrom, zto) < 0)
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return -1;
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}
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return unlink (zfrom);
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}
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