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make optional constexpr in C++14

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This commit is contained in:
Andrzej Krzemienski
2026-02-07 02:12:24 +01:00
parent bfdf0c73f9
commit 3df23370e6
28 changed files with 1405 additions and 544 deletions
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test/optional_test_swap.cpp
+8 -3
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@@ -210,6 +210,7 @@ namespace boost {
// Compile time tweaking on whether or not swap should use the default constructor:
//
#ifndef BOOST_OPTIONAL_USES_CONSTEXPR_IMPLEMENTATION
template <> struct optional_swap_should_use_default_constructor<
optional_swap_test::class_whose_default_ctor_should_be_used> : true_type {} ;
@@ -218,7 +219,7 @@ template <> struct optional_swap_should_use_default_constructor<
template <class T> struct optional_swap_should_use_default_constructor<
optional_swap_test::template_whose_default_ctor_should_be_used<T> > : true_type {} ;
#endif // BOOST_OPTIONAL_USES_CONSTEXPR_IMPLEMENTATION
//
// Specialization of boost::swap:
@@ -352,15 +353,19 @@ void test_swap_member_function( T const* )
void test_swap_tweaking()
{
( test_swap_function( ARG(optional_swap_test::class_without_default_ctor) ) );
#ifndef BOOST_OPTIONAL_USES_CONSTEXPR_IMPLEMENTATION
( test_swap_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
( test_swap_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
( test_swap_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
#endif
( test_swap_member_function( ARG(optional_swap_test::class_without_default_ctor) ) );
#ifndef BOOST_OPTIONAL_USES_CONSTEXPR_IMPLEMENTATION
( test_swap_member_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
( test_swap_member_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
( test_swap_member_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
#endif
}
int main()