Refactor: move some utils from antcc.h to their own headers

1 files changed, 23 insertions, 0 deletions

diff --git a/src/u_hash.h b/src/u_hash.h
new file mode 100644
index 0000000..2b54ae6
--- /dev/null
+++ b/src/u_hash.h
@@ -0,0 +1,23 @@
+#pragma once
+
+#include <stddef.h>
+
+static inline size_t
+hashs(size_t h, const char *s)
+{
+   while (*s) h = (unsigned char)*s++ + h*65599;
+   return h;
+}
+
+static inline size_t
+hashb(size_t h, const void *d, size_t n)
+{
+   const unsigned char *b = d;
+   while (n--) h = *b++ + h*65599;
+   return h;
+}
+
+static inline size_t
+ptrhash(const void *p) {
+   return (size_t)p * 2654435761u;
+}