Update to boost 1.72

[lyx.git] / 3rdparty / boost / boost / core / explicit_operator_bool.hpp

diff --git a/3rdparty/boost/boost/core/explicit_operator_bool.hpp b/3rdparty/boost/boost/core/explicit_operator_bool.hpp
index a8936e2cd67db31dc88821494c65a76a12b5ca45..d689f114d320ef7975aea4fdeb3dda01996190c2 100644 (file)
--- a/3rdparty/boost/boost/core/explicit_operator_bool.hpp
+++ b/3rdparty/boost/boost/core/explicit_operator_bool.hpp
@@ -19,6 +19,7 @@
 #define BOOST_CORE_EXPLICIT_OPERATOR_BOOL_HPP
 
 #include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
 
 #ifdef BOOST_HAS_PRAGMA_ONCE
 #pragma once
@@ -52,6 +53,8 @@
         return !this->operator! ();\
     }
 
+#if !BOOST_WORKAROUND(BOOST_GCC, < 40700)
+
 /*!
  * \brief The macro defines a constexpr explicit operator of conversion to \c bool
  *
@@ -65,6 +68,12 @@
         return !this->operator! ();\
     }
 
+#else
+
+#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL() BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()
+
+#endif
+
 #else // !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
 
 #if (defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)) && !defined(BOOST_NO_COMPILER_CONFIG)