1 files changed, 35 insertions, 0 deletions
diff --git a/compiler/hash.c b/compiler/hash.c
new file mode 100644
index 0000000..a63691c
--- /dev/null
+++ b/compiler/hash.c
@@ -0,0 +1,35 @@
+/*
+ * 32-bit FNV-1a hash function.
+ * Copyright (c) 2023-2024, Quinn Stephens and the OSMORA team.
+ * Provided under the BSD 3-Clause license.
+ */
+
+#include "hash.h"
+
+hash_t
+hash_data(const void *data, size_t length)
+{
+    hash_t hash;
+
+    hash = FNV_OFFSET_BASIS;
+    for (size_t i = 0; i < length; i++) {
+        hash ^= ((uint8_t*)data)[i];
+        hash *= FNV_PRIME;
+    }
+
+    return hash;
+}
+
+hash_t
+hash_string(const char *str)
+{
+    hash_t hash;
+
+    hash = FNV_OFFSET_BASIS;
+    while (*str) {
+        hash ^= (uint8_t)*str++;
+        hash *= FNV_PRIME;
+    }
+
+    return hash;
+}