Question

How to convert float number to string in C++

Answer 1

#include <iostream>
#include <string>

using std::cout;
using std::endl;
using std::string;

int main()
{
	float f = 3.14;

	string s = std::to_string(f);

	cout << s << endl;

	return 0;
}

/*
run:

3.140000

*/

 

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Answer 2

#include <iostream>
#include <string>
#include <sstream>

using std::cout;
using std::endl;
using std::string;

int main()
{
	float f = 3.14;

	std::ostringstream oss;

	oss << f;

	string s = oss.str();

	cout << s << endl;

	return 0;
}

/*
run:

3.14

*/

 

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