From 82fc4b60cf63dad233b2792a750b273d85330e4e Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik@eossweden.org>
Date: Fri, 10 Mar 2023 11:11:39 +0100
Subject: [PATCH] include/libeosio/checksum.hpp: Adding checksum_validate
 function

---
 include/libeosio/checksum.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/libeosio/checksum.hpp b/include/libeosio/checksum.hpp
index 3653418..6bedac9 100644
--- a/include/libeosio/checksum.hpp
+++ b/include/libeosio/checksum.hpp
@@ -57,6 +57,12 @@ inline checksum_t checksum(const unsigned char* data, std::size_t len) {
 	return crc;
 }
 
+template <checksum_t (*F)(const unsigned char *, std::size_t)>
+inline bool checksum_validate(const unsigned char* data, std::size_t len) {
+	checksum_t check = F(data, len - CHECKSUM_SIZE);
+	return !memcmp(check.data(), data + (len - CHECKSUM_SIZE), CHECKSUM_SIZE);
+}
+
 /**
  * Checksum implementations.
  */