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Added test for private_int_array_pair, hoping to (possibly) fix a minion-clang/darwin-4.2.1 failure at boost.org/development/tests/trunk/developer/utility_.html

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[SVN r63045]
This commit is contained in:
Niels Dekker 2010-06-17 16:53:55 +00:00
parent 9da96d9737
commit b4a08fc80e
1 changed files with 27 additions and 2 deletions
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29
value_init_workaround_test.cpp
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@ -6,7 +6,7 @@
// //
// Test program for the boost::value_initialized<T> workaround. // Test program for the boost::value_initialized<T> workaround.
// //
// 30 May 2010 (Created) Niels Dekker // 17 June 2010 (Created) Niels Dekker
// Switch the workaround off, before inluding "value_init.hpp". // Switch the workaround off, before inluding "value_init.hpp".
#define BOOST_DETAIL_VALUE_INIT_WORKAROUND 0 #define BOOST_DETAIL_VALUE_INIT_WORKAROUND 0
@ -51,6 +51,30 @@ namespace
return arg.i == 0; return arg.i == 0;
} }
// Equivalent to the Stats class from GCC Bug 33916,
// "Default constructor fails to initialize array members", reported in 2007 by
// Michael Elizabeth Chastain: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33916
// and fixed for GCC 4.2.4.
class private_int_array_pair
{
friend bool is_value_initialized(const private_int_array_pair& arg);
private:
int first[12];
int second[12];
};
bool is_value_initialized(const private_int_array_pair& arg)
{
for ( unsigned i = 0; i < 12; ++i)
{
if ( (arg.first[i] != 0) || (arg.second[i] != 0) )
{
return false;
}
}
return true;
}
template <typename T> template <typename T>
bool is_value_initialized(const T(& arg)[2]) bool is_value_initialized(const T(& arg)[2])
{ {
@ -107,7 +131,8 @@ int main()
// TODO More types may be added later. // TODO More types may be added later.
const unsigned num_failures = const unsigned num_failures =
FAILED_TO_VALUE_INITIALIZE(boost::value_initialized<derived_struct>()) + FAILED_TO_VALUE_INITIALIZE(boost::value_initialized<derived_struct>()) +
FAILED_TO_VALUE_INITIALIZE(boost::value_initialized<virtual_destructor_holder[2]>()); FAILED_TO_VALUE_INITIALIZE(boost::value_initialized<virtual_destructor_holder[2]>()) +
FAILED_TO_VALUE_INITIALIZE(boost::value_initialized<private_int_array_pair>());
#ifdef BOOST_DETAIL_VALUE_INIT_WORKAROUND_SUGGESTED #ifdef BOOST_DETAIL_VALUE_INIT_WORKAROUND_SUGGESTED
// One or more failures are expected. // One or more failures are expected.