From a226e066293b9d5861fa56ca8f6c8fd2b8a38a83 Mon Sep 17 00:00:00 2001
From: h5p9sl <21267024+h5p9sl@users.noreply.github.com>
Date: Thu, 4 Jul 2019 20:27:00 -0600
Subject: [PATCH] Add C++ compatibility

---
 hmac_sha256.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/hmac_sha256.h b/hmac_sha256.h
index 9613c8c..e33e0b5 100644
--- a/hmac_sha256.h
+++ b/hmac_sha256.h
@@ -6,6 +6,10 @@
 #ifndef _HMAC_SHA256_H_
 #define _HMAC_SHA256_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
 #include <stdint.h>
 
 void hmac_sha256(
@@ -17,5 +21,9 @@ void hmac_sha256(
     uint8_t* out, const unsigned outlen
 );
 
-#endif
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif // _HMAC_SHA256_H_