Declaration

double atof(const char*);

Description

Takes in a number as a null-terminated char string and returns the value as a double.

Example

#include <iostream>
#include <cstdlib>

int main() {
    using namespace std;

    char caNullTermString[] = "1.2";
    double dA = atof(caNullTermString);
    double dB = atof("3.4");

    cout << (dA + dB) << endl;

    return 0;
}

Output