57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_MATLAB_MEX_STREAM_H
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#define IGL_MATLAB_MEX_STREAM_H
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#include <iostream>
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namespace igl
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{
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namespace matlab
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{
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// http://stackoverflow.com/a/249008/148668
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// Class to implement "cout" for mex files to print to the matlab terminal
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// window.
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//
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// Insert at the beginning of mexFunction():
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// MexStream mout;
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// std::streambuf *outbuf = std::cout.rdbuf(&mout);
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// ...
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// ALWAYS restore original buffer to avoid memory leak problems in matlab
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// std::cout.rdbuf(outbuf);
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//
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class MexStream : public std::streambuf
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{
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public:
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protected:
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inline virtual std::streamsize xsputn(const char *s, std::streamsize n);
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inline virtual int overflow(int c = EOF);
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};
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}
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}
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// Implementation
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#include <mex.h>
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inline std::streamsize igl::matlab::MexStream::xsputn(
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const char *s,
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std::streamsize n)
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{
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mexPrintf("%.*s",n,s);
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mexEvalString("drawnow;"); // to dump string.
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return n;
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}
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inline int igl::matlab::MexStream::overflow(int c)
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{
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if (c != EOF) {
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mexPrintf("%.1s",&c);
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mexEvalString("drawnow;"); // to dump string.
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}
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return 1;
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}
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#endif
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