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dft_tools/test/triqs/arrays/temp_slice.cpp
2013-09-08 11:58:37 +02:00

83 lines
2.1 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2011 by O. Parcollet
*
* TRIQS is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#include "./common.hpp"
#include "./src/array.hpp"
#include <iostream>
using namespace triqs::arrays;
auto bad (array<long,1> const & a) DECL_AND_RETURN (a(range(0,3)));
auto bad2 (array<long,1> const & a) DECL_AND_RETURN (a(0));
array_view<long,1> good(array<long,1> const & a) {return a(range(0,3));}
int main(int argc, char **argv) {
try {
array<long,1> A = {1,2,3,4};
std::cerr<<"A is "<<A<<std::endl;
{
auto r = A(range(0,3));
TEST_ASSERT(r.storage().is_weak);
}
{
auto r = array<long,1> {1,2,3,4} (range(0,3));
TEST_ASSERT(!r.storage().is_weak);
std::cerr << r << r.storage().is_weak << std::endl ;
}
{
auto r = array<long,1> {1,2,3,4} (range(0,3))();
std::cerr << r << r.storage().is_weak << std::endl ;
TEST_ASSERT(!r.storage().is_weak);
}
{
auto r = good ( { 1,2,3,4} );
std::cerr << " good "<< r << r.storage().is_weak << std::endl ;
}
// rm or valgrind will find the error
//#define VALGRIND
#ifndef VALGRIND
{
auto & r = bad2 ( { 1,2,3,4} );
std::cerr << " bad2 " << r << std::endl ;
}
{
auto r = bad ( { 1,2,3,4} );
std::cerr << " bad " << r << r.storage().is_weak << std::endl ;
}
#endif
}
catch (std::exception & e) { std::cout << e.what()<<std::endl;}
return 0;
}