mirror of
https://github.com/boostorg/optional.git
synced 2025-11-04 01:31:57 +01:00
37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
// (C) 2003, Fernando Luis Cacciola Carballal.
|
|
//
|
|
// This material is provided "as is", with absolutely no warranty expressed
|
|
// or implied. Any use is at your own risk.
|
|
//
|
|
// Permission to use or copy this software for any purpose is hereby granted
|
|
// without fee, provided the above notices are retained on all copies.
|
|
// Permission to modify the code and to distribute modified code is granted,
|
|
// provided the above notices are retained, and a notice that the code was
|
|
// modified is included with the above copyright notice.
|
|
//
|
|
// You are welcome to contact the author at:
|
|
// fernando_cacciola@hotmail.com
|
|
//
|
|
#include "boost/optional.hpp"
|
|
|
|
//
|
|
// THIS TEST SHOULD FAIL TO COMPILE
|
|
//
|
|
#if BOOST_WORKAROUND( BOOST_INTEL_CXX_VERSION, <= 700) // Intel C++ 7.0
|
|
// Interl C++ 7.0 incorrectly accepts the initialization "boost::optional<int> opt = 3"
|
|
// even though the ctor is explicit (c.f. 12.3.1.2), so the test uses another form of
|
|
// copy-initialization: argument-passing (8.5.12)
|
|
void helper ( boost::optional<int> ) ;
|
|
void test_explicit_constructor()
|
|
{
|
|
helper(3) ; // ERROR: Ctor is explicit.
|
|
}
|
|
#else
|
|
void test_explicit_constructor()
|
|
{
|
|
boost::optional<int> opt = 3 ; // ERROR: Ctor is explicit.
|
|
}
|
|
#endif
|
|
|
|
|