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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /nsprpub/lib/libc/src/strchr.c | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'nsprpub/lib/libc/src/strchr.c')
-rw-r--r-- | nsprpub/lib/libc/src/strchr.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/nsprpub/lib/libc/src/strchr.c b/nsprpub/lib/libc/src/strchr.c new file mode 100644 index 0000000000..7de1887dc3 --- /dev/null +++ b/nsprpub/lib/libc/src/strchr.c @@ -0,0 +1,70 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "plstr.h" +#include <string.h> + +PR_IMPLEMENT(char *) +PL_strchr(const char *s, char c) +{ + if( (const char *)0 == s ) { + return (char *)0; + } + + return strchr(s, c); +} + +PR_IMPLEMENT(char *) +PL_strrchr(const char *s, char c) +{ + if( (const char *)0 == s ) { + return (char *)0; + } + + return strrchr(s, c); +} + +PR_IMPLEMENT(char *) +PL_strnchr(const char *s, char c, PRUint32 n) +{ + if( (const char *)0 == s ) { + return (char *)0; + } + + for( ; n && *s; s++, n-- ) + if( *s == c ) { + return (char *)s; + } + + if( ((char)0 == c) && (n > 0) && ((char)0 == *s) ) { + return (char *)s; + } + + return (char *)0; +} + +PR_IMPLEMENT(char *) +PL_strnrchr(const char *s, char c, PRUint32 n) +{ + const char *p; + + if( (const char *)0 == s ) { + return (char *)0; + } + + for( p = s; n && *p; p++, n-- ) + ; + + if( ((char)0 == c) && (n > 0) && ((char)0 == *p) ) { + return (char *)p; + } + + for( p--; p >= s; p-- ) + if( *p == c ) { + return (char *)p; + } + + return (char *)0; +} |