2 files changed, 11 insertions, 1 deletions
diff --git a/libs/c/include/stddef.h b/libs/c/include/stddef.h
new file mode 100644
index 00000000..4986043a
--- /dev/null
+++ b/libs/c/include/stddef.h
@@ -0,0 +1,8 @@
+#ifndef _C_STDDEF_H
+#define _C_STDDEF_H
+
+#define NULL 0
+
+typedef unsigned int size_t;
+
+#endif
diff --git a/libs/c/include/string.h b/libs/c/include/string.h
index 61fde219..bd27c855 100644
--- a/libs/c/include/string.h
+++ b/libs/c/include/string.h
@@ -1,8 +1,10 @@
 #ifndef _C_STRING_H
 #define _C_STRING_H
 
-typedef unsigned int size_t;
+#include <stddef.h>
 
+void memcpy(void *dest, void *src, size_t count);
+void memmove(void *dest, void *src, size_t count);
 void memset(void *dest, int ch, size_t count);
 void *memchr(const void *ptr, int ch, size_t count);
 void *memrchr(const void *ptr, int ch, size_t count);