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-rw-r--r--lib/libc/memchr.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/libc/memchr.c b/lib/libc/memchr.c
new file mode 100644
index 0000000..8cbb715
--- /dev/null
+++ b/lib/libc/memchr.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+#include <string.h>
+
+void *memchr(const void *src, int c, size_t len)
+{
+ const unsigned char *s = src;
+
+ while (len--) {
+ if (*s == (unsigned char)c)
+ return (void *) s;
+ s++;
+ }
+
+ return NULL;
+}