1 files changed, 33 insertions, 0 deletions
diff --git a/src/u8c/isalnum.c b/src/u8c/isalnum.c
new file mode 100644
index 0000000..d2ab013
--- /dev/null
+++ b/src/u8c/isalnum.c
@@ -0,0 +1,33 @@
+/*
+	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 <stddef.h>
+# include <stdint.h>
+# include <u8c/isalnum.h>
+# include <u8c/isalpha.h>
+# include <u8c/isdigit.h>
+uint_least8_t u8c_isalnum(uint_least8_t * const _res,uint_least32_t _chr) {
+	assert(_res != NULL);
+	uint_least8_t res = UINT8_C(0x0);
+	u8c_isalpha(&res,_chr);
+	if(res) {
+		*_res = res;
+		return UINT8_C(0x0);
+	}
+	u8c_isdigit(&res,_chr);
+	*_res = res;
+	return UINT8_C(0x0);
+}