1 files changed, 15 insertions, 0 deletions
diff --git a/userland/libc/memset.c b/userland/libc/memset.c
new file mode 100644
index 0000000..51910e9
--- /dev/null
+++ b/userland/libc/memset.c
@@ -0,0 +1,15 @@
+#include <stddef.h>
+
+// https://pubs.opengroup.org/onlinepubs/9699919799/
+void *memset(void *s, int c, size_t n) {
+  // The memset() function shall copy c (converted to an unsigned
+  // char) into each of the first n bytes of the object pointed to by
+  // s.
+
+  unsigned char *p = s;
+  for (; n > 0; n--, p++)
+    *p = (unsigned char)c;
+
+  // The memset() function shall return s
+  return s;
+}