Function not returing specified precision for a double value?

Revision en1, by mohitm, 2020-01-31 18:48:37

Below is the code for a function returing a double value as string whose precision is 15(i.e. no. of digit after decimal should be 15)

Click here to see the execution on ide

#include <bits/stdc++.h>
using namespace std;

string doit(){


    double val = 4444/21;

    // want to return it as string
    string ans = to_string(val);

    return ans;

int main() {

    string ans = doit();
    return 0;

output is


I want the output to contain 15 digits after decimal and it should be returned by the function and not use print/cout statement inside the function.

Tags c++ 14, precision, c++, decimal


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en1 English mohitm 2020-01-31 18:48:37 883 Initial revision (published)