Squashed 'external/stb/stb/' content from commit c39c7023e

git-subtree-dir: external/stb/stb
git-subtree-split: c39c7023ebb833ce099750fe35509aca5662695e

tests/test_siphash.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+
+#define STB_DS_IMPLEMENTATION
+#define STBDS_SIPHASH_2_4
+#define STBDS_TEST_SIPHASH_2_4
+#include "../stb_ds.h"
+
+int main(int argc, char **argv)
+{
+  unsigned char mem[64];
+  int i,j;
+  for (i=0; i < 64; ++i) mem[i] = i;
+  for (i=0; i < 64; ++i) {
+    size_t hash = stbds_hash_bytes(mem, i, 0);
+    printf("  { ");
+    for (j=0; j < 8; ++j)
+      printf("0x%02x, ", (unsigned char) ((hash >> (j*8)) & 255));
+    printf(" },\n");
+  }
+  return 0;
+}