Mercurial > hg > octave-nkf > gnulib-hg
changeset 3708:bd719c800d4b
Include errno.h, and declare errno if not defined.
(memcoll): Set errno to zero if there is no error.
author | Jim Meyering <jim@meyering.net> |
---|---|
date | Tue, 22 Jan 2002 07:56:44 +0000 |
parents | 03563e12c5ae |
children | 8158714ca8ba |
files | lib/memcoll.c |
diffstat | 1 files changed, 9 insertions(+), 3 deletions(-) [+] |
line wrap: on
line diff
--- a/lib/memcoll.c +++ b/lib/memcoll.c @@ -1,5 +1,5 @@ /* Locale-specific memory comparison. - Copyright 1999 Free Software Foundation, Inc. + Copyright 1999, 2002 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -21,6 +21,11 @@ # include <config.h> #endif +#include <errno.h> +#ifndef errno +extern int errno; +#endif + #include <sys/types.h> #if HAVE_STRING_H @@ -30,7 +35,8 @@ /* Compare S1 (with length S1LEN) and S2 (with length S2LEN) according to the LC_COLLATE locale. S1 and S2 do not overlap, and are not adjacent. Temporarily modify the bytes after S1 and S2, but - restore their original contents before returning. */ + restore their original contents before returning. Set errno to an + error number if there is an error, and to zero otherwise. */ int memcoll (char *s1, size_t s1len, char *s2, size_t s2len) { @@ -41,7 +47,7 @@ s1[s1len++] = '\0'; s2[s2len++] = '\0'; - while (! (diff = strcoll (s1, s2))) + while (! (errno = 0, (diff = strcoll (s1, s2)) || errno)) { /* strcoll found no difference, but perhaps it was fooled by NUL characters in the data. Work around this problem by advancing