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Merged value_initialized::swap from trunk [48424] and [48425], according to ticket #2243, as was agreed with Fernando Cacciola.

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[SVN r49967]
This commit is contained in:
Niels Dekker
2008-11-27 19:37:39 +00:00
parent 633832e872
commit 9e73b2c6ae
3 changed files with 63 additions and 5 deletions
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value_init_test.cpp
+42 -1
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@@ -9,6 +9,7 @@
// 21 Ago 2002 (Created) Fernando Cacciola
// 15 Jan 2008 (Added tests regarding compiler issues) Fernando Cacciola, Niels Dekker
// 23 May 2008 (Added tests regarding initialized_value) Niels Dekker
// 21 Ago 2008 (Added swap test) Niels Dekker
#include <cstring> // For memcmp.
#include <iostream>
@@ -181,6 +182,35 @@ struct CopyFunctionCallTester
};
//
// A struct that allows testing whether its customized swap function is called.
//
struct SwapFunctionCallTester
{
bool is_custom_swap_called;
int data;
SwapFunctionCallTester()
: is_custom_swap_called(false), data(0) {}
SwapFunctionCallTester(const SwapFunctionCallTester & arg)
: is_custom_swap_called(false), data(arg.data) {}
void swap(SwapFunctionCallTester & arg)
{
std::swap(data, arg.data);
is_custom_swap_called = true;
arg.is_custom_swap_called = true;
}
};
void swap(SwapFunctionCallTester & lhs, SwapFunctionCallTester & rhs)
{
lhs.swap(rhs);
}
template<class T>
void check_initialized_value ( T const& y )
{
@@ -196,7 +226,7 @@ void check_initialized_value( NonPOD const& )
// 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)
@@ -323,9 +353,20 @@ int test_main(int, char **)
BOOST_CHECK ( ! get(copyFunctionCallTester3).is_copy_constructed);
BOOST_CHECK ( get(copyFunctionCallTester3).is_assignment_called);
boost::value_initialized<SwapFunctionCallTester> swapFunctionCallTester1;
boost::value_initialized<SwapFunctionCallTester> swapFunctionCallTester2;
get(swapFunctionCallTester1).data = 1;
get(swapFunctionCallTester2).data = 2;
boost::swap(swapFunctionCallTester1, swapFunctionCallTester2);
BOOST_CHECK( get(swapFunctionCallTester1).data == 2 );
BOOST_CHECK( get(swapFunctionCallTester2).data == 1 );
BOOST_CHECK( get(swapFunctionCallTester1).is_custom_swap_called );
BOOST_CHECK( get(swapFunctionCallTester2).is_custom_swap_called );
return 0;
}
unsigned int expected_failures = 0;