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So I run my app. I need for it to know where its executable is. How to find path to it using Boost.Filesystem?
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boost::filesystem::path is the central class in Boost. Filesystem for representing and processing paths. Definitions can be found in the namespace boost::filesystem and in the header file boost/filesystem. hpp . Paths can be built by passing a string to the constructor of boost::filesystem::path (see Example 35.1).
For Windows system at console you can use system( dir ) command. And console gives you information about directory and etc. Read about the dir command at cmd .
The Boost Filesystem Library provides portable facilities to query and manipulate paths, files, and directories. The motivation for the library is the need to be able to perform portable script-like operations from within C++ programs.
boost::filesystem::system_complete(argv[0]);
e.g.
[davka@bagvapp Debug]$ ./boostfstest
/home/davka/workspaces/v1.1-POC/boostfstest/Debug/boostfstest
Note that this gives you the full path including the executable file name.
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You cannot, Boost.Filesystem does not provide such functionality.
But starting with Boost 1.61 you can use Boost.Dll and function boost::dll::program_location:
#include <boost/dll.hpp>
boost::dll::program_location().parent_path();
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