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path_to_executable.cpp
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52 lines (50 loc) · 1.32 KB
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#include "path_to_executable.h"
#ifdef __APPLE__
# include <mach-o/dyld.h>
#endif
#if defined(_WIN32)
# include <windows.h>
#else
#include <unistd.h>
#endif
#include <cstdint>
IGL_INLINE std::string igl::path_to_executable()
{
// http://pastebin.com/ffzzxPzi
std::string path;
char buffer[1024];
std::uint32_t size = sizeof(buffer);
#if defined (WIN32)
GetModuleFileName(nullptr,buffer,size);
path = buffer;
#elif defined (__APPLE__)
if(_NSGetExecutablePath(buffer, &size) == 0)
{
path = buffer;
}
#elif defined(UNIX) || defined(unix) || defined(__unix) || defined(__unix__)
int byte_count = readlink("/proc/self/exe", buffer, size);
if (byte_count != -1)
{
path = std::string(buffer, byte_count);
}
#elif defined(__FreeBSD__)
int mib[4];
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = -1;
sysctl(mib, 4, buffer, sizeof(buffer), NULL, 0);
path = buffer;
#elif defined(SUNOS)
path = getexecname();
#endif
return path;
}