Initial import

libc/str/tinymemmem.h

@@ -0,0 +1,24 @@
+#ifndef COSMOPOLITAN_LIBC_STR_TINYSTRSTR_H_
+#define COSMOPOLITAN_LIBC_STR_TINYSTRSTR_H_
+#include "libc/str/str.h"
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+
+forceinline void *tinymemmemi(const void *haystk, size_t haystksize,
+                              const void *needle, size_t needlesize) {
+  const char *p = haystk;
+  const char *pe = p + haystksize;
+  while (p < pe) {
+    size_t i = 0;
+    ++p;
+    for (;;) {
+      ++i;
+      if (i > needlesize) return (/*unconst*/ char *)(p - 1);
+      if (p == pe) break;
+      if (((const char *)needle)[i - 1] != (p - 1)[i - 1]) break;
+    }
+  }
+  return (/*unconst*/ char *)(!haystksize && !needlesize ? haystk : NULL);
+}
+
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_STR_TINYMEMMEM_H_ */