pmt: initial 3.0.2 update

include/libgnulib/c-strstr.h

@@ -0,0 +1,44 @@
+/* Searching in a string.
+   Copyright (C) 2001-2003, 2006, 2009-2024 Free Software Foundation, Inc.
+
+   This file 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 3 of the
+   License, or (at your option) any later version.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+
+/* The functions defined in this file assume a nearly ASCII compatible
+   character set.  */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Find the first occurrence of NEEDLE in HAYSTACK.
+   This function is safe to be called, even in a multibyte locale, if NEEDLE
+     1. consists solely of printable ASCII characters excluding '\\' and '~'
+        [this restriction is needed because of Shift_JIS and JOHAB]
+        or of the control ASCII characters '\a' '\b' '\f' '\n' '\r' '\t' '\v'
+        [this restriction is needed because of VISCII], and
+     2. has at least length 2
+        [this restriction is needed because of BIG5, BIG5-HKSCS, GBK, GB18030,
+         Shift_JIS, JOHAB], and
+     3. does not consist entirely of decimal digits, or has at least length 4
+        [this restriction is needed because of GB18030].
+   This function is also safe to be called, even in a multibyte locale, if
+   HAYSTACK and NEEDLE are known to both consist solely of printable ASCII
+   characters excluding '\\' and '~'.  */
+extern char *c_strstr (const char *haystack, const char *needle);
+
+#ifdef __cplusplus
+}
+#endif