Using atof: convert string to double

  
#include <iostream>
#include <stdlib.h>
using namespace std;
int main()
{
   double d = atof( "99.0" );

   cout << "The string \"99.0\" converted to double is "
        << d << "\nThe converted value divided by 2 is "
        << d / 2.0 << endl;
   return 0;
}

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Using atof: convert string to double : Double « Data Type « C++

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