hare

commit fc502aa4aca5017d18609a2ccb44427c31922d0e
parent 66dab152148fa5536ba8b21af644c065f9dd7d94
Author: Drew DeVault <sir@cmpwn.com>
Date:   Fri, 19 Nov 2021 18:00:41 +0100

hash::fnv: add string32, string64

Signed-off-by: Drew DeVault <sir@cmpwn.com>

Diffstat:
M
hash/fnv/fnv.ha
 | 
14
++++++++++++++

1 file changed, 14 insertions(+), 0 deletions(-)
diff --git a/hash/fnv/fnv.ha b/hash/fnv/fnv.ha
@@ -18,6 +18,20 @@ export type state64 = struct {
 	v: u64,
 };
 
+// Hashes a string, returning a 32-bit key.
+export fn string32(s: str) u32 = {
+	let hash = fnv32a();
+	hash::write(&hash, strings::toutf8(s));
+	return sum32(&hash);
+};
+
+// Hashes a string, returning a 64-bit key.
+export fn string64(s: str) u64 = {
+	let hash = fnv64a();
+	hash::write(&hash, strings::toutf8(s));
+	return sum64(&hash);
+};
+
 // Creates a [[hash::hash]] which computes the FNV-1 32-bit hash function. This
 // hash does not allocate any state, so you do not need to call [[hash::close]]
 // when you're done with it.