From 3eaba7afc06004128d44da2c464a41423cf6168d Mon Sep 17 00:00:00 2001
From: Matt Borland <matt@mattborland.com>
Date: Mon, 5 Dec 2022 20:34:46 -0800
Subject: [PATCH] Fix for sprintf deprecation warning

---
 include/boost/core/lightweight_test.hpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/boost/core/lightweight_test.hpp b/include/boost/core/lightweight_test.hpp
index 3b5df89..4f10fd4 100644
--- a/include/boost/core/lightweight_test.hpp
+++ b/include/boost/core/lightweight_test.hpp
@@ -202,6 +202,14 @@ inline unsigned long test_output_impl( char32_t const& v ) { return v; }
 #pragma warning(disable: 4996)
 #endif
 
+// Use snprintf if available as some complilers (clang 14.0) issue deprecation warnings for sprintf
+#if ( defined(_MSC_VER) && _MSC_VER < 1900 ) || ( defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) ) || \
+    ( defined(__cplusplus) && __cplusplus < 201103L)
+# define BOOST_CORE_SNPRINTF(buffer, format, arg) std::sprintf(buffer, format, arg)
+#else
+# define BOOST_CORE_SNPRINTF(buffer, format, arg) std::snprintf(buffer, sizeof(buffer)/sizeof(buffer[0]), format, arg)
+#endif
+
 inline std::string test_output_impl( char const& v )
 {
     if( std::isprint( static_cast<unsigned char>( v ) ) )
@@ -211,7 +219,7 @@ inline std::string test_output_impl( char const& v )
     else
     {
         char buffer[ 8 ];
-        std::sprintf( buffer, "\\x%02X", static_cast<unsigned char>( v ) );
+        BOOST_CORE_SNPRINTF( buffer, "\\x%02X", static_cast<unsigned char>( v ) );
 
         return buffer;
     }