#include <stdio.h>
#include <stdlib.h>
#include <string.h>

float func1(char f[15])
{
  return atof(f);
}

float func2(char *f)
{
  return atof(f);
}


int main()
{
   char str[20];
   
   strcpy(str, "9899.3489");
   printf("String value = %s, Float value = %f = %f\n", str, func1(str), func2(str));

   return(0);
}

String value = 9899.3489, Float value = 9899.348633 = 9899.348633