mirror of
https://github.com/triqs/dft_tools
synced 2024-10-31 19:23:45 +01:00
f1c32012a6
- for all functions, except when GIL option (not implemented) is here we use a triqs::py_stream, which redirect the stream to python sys.write - so that a simple C++ code with a std::cout print its output in the notebook... - NB : it only works for the code within the cell. If it calls another function on the lib which uses cout, print is not redirected. Designed for simple tests.... - cerr not (yet) redirected. (useful ?).
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2014 by O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#pragma once
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#include <ostream>
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#include <sstream>
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#include "./pyref.hpp"
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namespace triqs {
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/**
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*/
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class py_stream {
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py_tools::pyref sys, sys_out;
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void _write(const char* s);
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public:
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py_stream();
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template <class T> py_stream& operator<<(T const& x) {
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std::stringstream fs;
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fs << x;
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_write(fs.str().c_str());
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return *this;
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}
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// this is the type of std::cout
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typedef std::basic_ostream<char, std::char_traits<char>> CoutType;
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// this is the function signature of std::endl
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typedef CoutType& (*StandardEndLine)(CoutType&);
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// define an operator<< to take in std::endl
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py_stream& operator<<(StandardEndLine manip) {
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_write("\n");
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return *this;
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}
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};
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}
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