Wt

#include <string>

#include <fstream>

#include <streambuf>

#include <Wt/WString>

Wt::WString readFile(std::string fileName);

Wt::WString readFile(std::string fileName){

	std::string value;

	std::ifstream file;

	file.open(fileName.c_str());

	if(!file.is_open())

		throw("Error opening template file [" + fileName + "], please check it exists");

	value.assign((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());

	return Wt::WString(value);

}