Loading text file to std::string?

In case we want to load text file to std::string, I’ve found that Booost.Filesystem has a support for it in string_file.hpp header file. There are two functions defined there load_string_file() and save_string_file(). The first one loads file content to std::string and the second one saves std::string to text file.

Function load_string_file() can be used this way

#include <string>
#include <iostream>
#include <boost/filesystem/string_file.hpp>

using std::cout, std::string;
using boost::filesystem::load_string_file, boost::filesystem::path;

int main(int argc, char * argv[])
{
	string content;

	path p{argv[0]};
	p += ".cpp";

	load_string_file(p, content);

	cout << "file " << p << " is " << size(content) << " bytes long\n";

	cout << "done!\n";

	return 0;
}

where the program loads its source file as a std::string and print its length in bytes. For further details see load_file.cpp source and SConstruct build script sample.