1 files changed, 20 insertions, 0 deletions
diff --git a/v_windows/v/vlib/hash/hash.v b/v_windows/v/vlib/hash/hash.v
new file mode 100644
index 0000000..eabb166
--- /dev/null
+++ b/v_windows/v/vlib/hash/hash.v
@@ -0,0 +1,20 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module hash
+
+interface Hasher {
+	// Sum appends the current hash to b and returns the resulting array.
+	// It does not change the underlying hash state.
+	sum(b []byte) []byte
+	size() int
+	block_size() int
+}
+
+interface Hash32er {
+	sum32() u32
+}
+
+interface Hash64er {
+	sum64() u64
+}