1 files changed, 47 insertions, 0 deletions
diff --git a/src/u8c/u32.h.d/u32fndpat.c b/src/u8c/u32.h.d/u32fndpat.c
new file mode 100644
index 0000000..5a1b5d2
--- /dev/null
+++ b/src/u8c/u32.h.d/u32fndpat.c
@@ -0,0 +1,47 @@
+/*
+	Copyright 2021 Gabriel Jensen
+
+	This file is part of u8c.
+
+	u8c is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+	u8c 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 Affero General Public License for more details.
+
+	You should have received a copy of the GNU Affero General Public License along with u8c.
+
+	If not, see <https://www.gnu.org/licenses/>.
+*/
+# include <assert.h>
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+# include <u8c/SIZE_C.h>
+# include <u8c/err.h>
+# include <u8c/u32.h>
+bool u8c_u32fndpat(size_t * const _pos,char32_t const * const _in,char32_t const * const _pat) {
+	assert(_pos != NULL);
+	assert(_in != NULL);
+	size_t insz  = SIZE_C(0x0);
+	size_t patsz = SIZE_C(0x0);
+	u8c_u32sz(&insz,_in);
+	u8c_u32sz(&patsz,_pat);
+	if(insz == SIZE_C(0x1) || insz < patsz) {
+		*_pos = SIZE_C(-0x1);
+		return false;
+	}
+	for(register size_t n = SIZE_C(0x0);n < insz - patsz;n += SIZE_C(0x1)) {
+		char32_t const * str = NULL;
+		u8c_u32substr(&str,n,patsz - SIZE_C(0x1),_in);
+		uint_least8_t cmpres = UINT8_C(0x0);
+		u8c_u32cmp(&cmpres,str,_pat);
+		u8c_u32free(&str);
+		if(cmpres == UINT8_C(0x1)) {
+			*_pos = n;
+			return false;
+		}
+	}
+	*_pos = SIZE_C(-0x1);
+	return false;
+}