فروم بچه های تولز

#include <fstream>
#include <sstream>
std::string ReplaceAll(std::string str, const std::string& from, const std::string& to) {	size_t start_pos = 0;	while ((start_pos = str.find(from, start_pos)) != std::string::npos) {	str.replace(start_pos, from.length(), to);	start_pos += to.length(); // Handles case where 'to' is a substring of 'from'	}	retu str;
}
int main(int argc, char *argv[])
{	const std::string file_name = R"(D:readme.txt)";	std::ifstream filei(file_name);	std::string line;	std::string src_str = "ali";	std::string dst_str = "reza";	std::string wholeFile;	if (filei.is_open())	{	std::stringstream buffer;	buffer << filei.rdbuf();	wholeFile = buffer.str();	filei.close();	wholeFile = ReplaceAll(wholeFile, src_str, dst_str);	std::ofstream fileo(file_name);	std::stringstream ss;	ss.str(wholeFile);	fileo << ss.rdbuf();	fileo.close();	}
}