From da1d14e49180af9af2d7f6488ddb8dfc3b5d6c13 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 21 Oct 2024 16:18:29 +0300
Subject: [PATCH] Make implicit the default constructors of siphash_32 and
 siphash_64

---
 include/boost/hash2/siphash.hpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/include/boost/hash2/siphash.hpp b/include/boost/hash2/siphash.hpp
index f453184..90cf2f8 100644
--- a/include/boost/hash2/siphash.hpp
+++ b/include/boost/hash2/siphash.hpp
@@ -80,7 +80,12 @@ class siphash_64
     typedef std::uint64_t result_type;
     typedef std::uint64_t size_type;
 
-    explicit siphash_64( std::uint64_t k0 = 0, std::uint64_t k1 = 0 ): m_( 0 ), n_( 0 )
+    siphash_64(): m_( 0 ), n_( 0 )
+    {
+        init( 0, 0 );
+    }
+
+    explicit siphash_64( std::uint64_t k0, std::uint64_t k1 = 0 ): m_( 0 ), n_( 0 )
     {
         init( k0, k1 );
     }
@@ -262,7 +267,12 @@ class siphash_32
     typedef std::uint32_t result_type;
     typedef std::uint32_t size_type;
 
-    explicit siphash_32( std::uint64_t seed = 0 ): m_( 0 ), n_( 0 )
+    siphash_32(): m_( 0 ), n_( 0 )
+    {
+        init( 0, 0 );
+    }
+
+    explicit siphash_32( std::uint64_t seed ): m_( 0 ), n_( 0 )
     {
         std::uint32_t k0 = static_cast<std::uint32_t>( seed );
         std::uint32_t k1 = static_cast<std::uint32_t>( seed >> 32 );