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50 lines
1.2 KiB
50 lines
1.2 KiB
// 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_VERBOSE_H
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#define IGL_VERBOSE_H
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// This function is only useful as a header-only inlined function
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namespace igl
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{
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/// Provide a wrapper for printf, called verbose that functions exactly like
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/// printf if VERBOSE is defined and does exactly nothing if VERBOSE is
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/// undefined
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///
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/// @param[in] msg printf style format string
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/// @param[in] ... printf style arguments
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/// @return number of characters printed
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inline int verbose(const char * msg,...);
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}
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#include <cstdio>
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#ifdef VERBOSE
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# include <cstdarg>
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#endif
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#include <string>
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// http://channel9.msdn.com/forums/techoff/254707-wrapping-printf-in-c/
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#ifdef VERBOSE
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inline int igl::verbose(const char * msg,...)
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{
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va_list argList;
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va_start(argList, msg);
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int count = vprintf(msg, argList);
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va_end(argList);
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return count;
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}
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#else
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inline int igl::verbose(const char * /*msg*/,...)
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{
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return 0;
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}
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#endif
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#endif
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