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dft_tools/test/triqs/utility/h5_seria.cpp
Olivier Parcollet 4af1afbdaf hdf5 : clean up
- For users : only change is :
   H5::H5File in apps. to be replaced by triqs::h5::file, same API.

- using only the C API because :
   - it is cleaner, better documented, more examples.
   - it is the native hdf5 interface.
   - simplify the installation e.g. on mac. Indeed, hdf5 is
     usually installed without C++ interface, which is optional.
     E.g. EPD et al., brew by default.
     Also the infamous mpi+ hdf5_cpp bug, for which we have no clean solution.

- clean the notion of parent of a group. Not needed, better iterate function in C LT API.
- modified doc : no need for C++ bindings any more.
- modified cmake to avoid requiring CPP bindings.
2014-06-22 13:57:47 +02:00

63 lines
1.6 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2014 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 <triqs/arrays.hpp>
#include <iostream>
#if not H5_VERSION_GE(1,8,9)
int main() {}
#else
#include <triqs/h5/serialization.hpp>
using triqs::h5::serialize;
using triqs::h5::deserialize;
int main() {
try{
using triqs::arrays::array;
auto a = array<double, 1>{1, 2, 3, 4, 5};
{
auto a2 = array<double, 1>(10000);
a2() = 8.3;
auto s2 = serialize(a2);
std::cout << "len " << s2.size() << std::endl;
}
{
auto a2 = array<double, 1>(20000);
a2() = 8.3;
auto s2 = serialize(a2);
std::cout << "len " << s2.size() << std::endl;
}
auto s1 = serialize(a);
auto b = deserialize<array<double, 1>>(s1);
std::cout << "a = " << a << " == " << b << std::endl;
}
catch(std::exception const & e) { std::cout << e.what()<<std::endl;}
}
#endif