boostorg/utility
1
0
Fork 1
mirror of https://github.com/boostorg/utility.git synced 2025-07-29 20:37:32 +02:00
Code Issues Packages Projects Releases Wiki Activity

value_init_test now works around Borland 5.82 bug ("Error E2015: Ambiguity..." when using initialized_value), that is fixed with a newer compiler version

Browse Source 
[SVN r42868]
This commit is contained in:
Niels Dekker
2008-01-19 20:21:18 +00:00
parent a511007d0f
commit 721764937f
1 changed files with 31 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
value_init_test.cpp
View File

@ -6,8 +6,8 @@
//
// Test program for "boost/utility/value_init.hpp"
//
// 21 Agu 2002 (Created) Fernando Cacciola
// 16 Jan 2008 (Added tests regarding compiler issues and initialized_value) Fernando Cacciola, Niels Dekker
// 21 Ago 2002 (Created) Fernando Cacciola
// 19 Jan 2008 (Added tests regarding compiler issues and initialized_value) Fernando Cacciola, Niels Dekker
#include <cstring> // For memcmp.
#include <iostream>
@ -180,6 +180,32 @@ struct CopyFunctionCallTester
};
template<class T>
void check_initialized_value ( T const& y )
{
T initializedValue = boost::initialized_value() ;
BOOST_CHECK ( y == initializedValue ) ;
}
#ifdef __BORLANDC__
#if __BORLANDC__ == 0x582
void check_initialized_value( NonPOD const& )
{
// The initialized_value check is skipped for Borland 5.82
// and this type (NonPOD), because the following statement
// won't compile on this particular compiler version:
// NonPOD initializedValue = boost::initialized_value() ;
//
// This is caused by a compiler bug, that is fixed with a newer version
// of the Borland compiler. The Release Notes for Delphi(R) 2007 for
// Win32(R) and C++Builder(R) 2007 (http://dn.codegear.com/article/36575)
// say about similar statements:
// both of these statements now compile but under 5.82 got the error:
// Error E2015: Ambiguity between 'V::V(const A &)' and 'V::V(const V &)'
}
#endif
#endif
//
// This test function tests boost::value_initialized<T> for a specific type T.
// The first argument (y) is assumed have the value of a value-initialized object.
@ -189,13 +215,13 @@ template<class T>
bool test ( T const& y, T const& z )
{
const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
check_initialized_value(y);
boost::value_initialized<T> x ;
BOOST_CHECK ( y == x ) ;
BOOST_CHECK ( y == boost::get(x) ) ;
T initializedValue = boost::initialized_value() ;
BOOST_CHECK ( y == initializedValue ) ;
static_cast<T&>(x) = z ;
boost::get(x) = z ;
BOOST_CHECK ( x == z ) ;