Basic read and write with ASCII files with C++

readfile.cxx

#include <fstream>
#include <iostream>


struct Parameters
{
	float a;
	float b;
	float c;
};

void readParams(std::string fname)
{
	float x, y, z;
	std::ifstream file(fname.c_str());
	while (file >> x >> y >> z)
	{
		// do something with parameters
		std::cout << x << std::endl
				  << y << std::endl
				  << z << std::endl;
	}
}

void writeParams(std::string fname, Parameters params)
{
	std::ofstream outfile;
	outfile.open(fname.c_str());
	outfile << params.a << ' '
			<< params.b << ' '
			<< params.c << ' ';
	outfile.close();
}

int main()
{
	Parameters myparams;
	myparams.a = 2.543;
	myparams.b = 3545;
	myparams.c = 4.42;


	writeParams("file.txt", myparams);
	readParams("file.txt");

}