1 files changed, 31 insertions, 0 deletions
diff --git a/src/string/memchr.c b/src/string/memchr.c
new file mode 100644
index 00000000..97f6b257
--- /dev/null
+++ b/src/string/memchr.c
@@ -0,0 +1,31 @@
+#include <string.h>
+#include "nonstd/assert.h"
+
+/** search memory **/
+void * memchr(const void *s, int c, size_t n)
+{
+	char *p = (char*)s;
+	size_t i = 0;
+
+	ASSERT_NONNULL(s);
+
+	for (i = 0; i < n; i++) {
+		if (p[i] == (unsigned char)c) {
+			return p + i;
+		}
+	}
+
+	/*
+	RETURN_FAILURE(CONSTANT(NULL));
+	RETURN_SUCCESS(a pointer to the located byte);
+	*/
+	return NULL;
+}
+
+/***
+searches the first ARGUMENT(n) bytes of memory at ARGUMENT(s) for
+ARGUMENT(c) (converted to an TYPE(unsigned char)).
+***/
+/*
+STDC(1)
+*/