Question

Write a function that mimics the behavior of "ftoa" function,
It should be defined as follows:
char* ftoa (float number, char* buffer, int base )
Example:
int n = 2.5;
char* buffer = new char[20];
ftoa(n,buffer,10);
cout<

Answer 1

Answer:

void ftoa(float number, char* buffer, int base)  

{  

    int ipart = (int)number;  

   float fpart = n - (float)ipart;  

     int i = intToStr(ipart, buffer, 0);  

      if (base != 0) {  

       buffer[i] = '.';

       fpart = fpart * pow(10, base);  

      intToStr((int)fpart, buffer + i + 1, base);  

   }  

}

Explanation:

The above function ftoa() will converts a floating-point/double number to a string.

buffer[i] = '.'; statement will add "." and get the value of fraction part.