91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
// Cppcheck - A tool for static C/C++ code analysis
|
|
// Copyright (C) 2007-2021 Cppcheck team.
|
|
//
|
|
// This program 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.
|
|
//
|
|
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef REDIRECT_H
|
|
#define REDIRECT_H
|
|
|
|
#include <iostream>
|
|
#include <sstream>
|
|
#include <string>
|
|
|
|
extern std::ostringstream errout;
|
|
extern std::ostringstream output;
|
|
/**
|
|
* @brief Utility class for capturing cout and cerr to ostringstream buffers
|
|
* for later use. Uses RAII to stop redirection when the object goes out of
|
|
* scope.
|
|
*/
|
|
class RedirectOutputError {
|
|
public:
|
|
/** Set up redirection, flushing anything in the pipes. */
|
|
RedirectOutputError() {
|
|
// flush all old output
|
|
std::cout.flush();
|
|
std::cerr.flush();
|
|
|
|
_oldCout = std::cout.rdbuf(); // back up cout's streambuf
|
|
_oldCerr = std::cerr.rdbuf(); // back up cerr's streambuf
|
|
|
|
std::cout.rdbuf(_out.rdbuf()); // assign streambuf to cout
|
|
std::cerr.rdbuf(_err.rdbuf()); // assign streambuf to cerr
|
|
}
|
|
|
|
/** Revert cout and cerr behaviour */
|
|
~RedirectOutputError() {
|
|
std::cout.rdbuf(_oldCout); // restore cout's original streambuf
|
|
std::cerr.rdbuf(_oldCerr); // restore cerrs's original streambuf
|
|
|
|
errout << _err.str();
|
|
output << _out.str();
|
|
}
|
|
|
|
/** Return what would be printed to cout. See also clearOutput() */
|
|
std::string getOutput() const {
|
|
return _out.str();
|
|
}
|
|
|
|
/** Normally called after getOutput() to prevent same text to be returned
|
|
twice. */
|
|
void clearOutput() {
|
|
_out.str("");
|
|
}
|
|
|
|
/** Return what would be printed to cerr. See also clearErrout() */
|
|
std::string getErrout() const {
|
|
return _err.str();
|
|
}
|
|
|
|
/** Normally called after getErrout() to prevent same text to be returned
|
|
twice. */
|
|
void clearErrout() {
|
|
_err.str("");
|
|
}
|
|
|
|
private:
|
|
std::ostringstream _out;
|
|
std::ostringstream _err;
|
|
std::streambuf *_oldCout;
|
|
std::streambuf *_oldCerr;
|
|
};
|
|
|
|
#define REDIRECT RedirectOutputError redir; do {} while (false)
|
|
#define GET_REDIRECT_OUTPUT redir.getOutput()
|
|
#define CLEAR_REDIRECT_OUTPUT redir.clearOutput()
|
|
#define GET_REDIRECT_ERROUT redir.getErrout()
|
|
#define CLEAR_REDIRECT_ERROUT redir.clearErrout()
|
|
|
|
#endif
|