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Diffstat (limited to 'REORG.TODO/string/strcmp.c')
-rw-r--r-- | REORG.TODO/string/strcmp.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/string/strcmp.c b/REORG.TODO/string/strcmp.c new file mode 100644 index 0000000000..a818285ea2 --- /dev/null +++ b/REORG.TODO/string/strcmp.c @@ -0,0 +1,47 @@ +/* Copyright (C) 1991-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <string.h> + +#undef strcmp + +#ifndef STRCMP +# define STRCMP strcmp +#endif + +/* Compare S1 and S2, returning less than, equal to or + greater than zero if S1 is lexicographically less than, + equal to or greater than S2. */ +int +STRCMP (const char *p1, const char *p2) +{ + const unsigned char *s1 = (const unsigned char *) p1; + const unsigned char *s2 = (const unsigned char *) p2; + unsigned char c1, c2; + + do + { + c1 = (unsigned char) *s1++; + c2 = (unsigned char) *s2++; + if (c1 == '\0') + return c1 - c2; + } + while (c1 == c2); + + return c1 - c2; +} +libc_hidden_builtin_def (strcmp) |