Thread: Arguments return method is not working for float

Below is the source code

Code:

#include<stdio.h>
#include<conio.h>

int main(void);
float * Display(float *,float *);

int main(void)
{
   float a,b,*c;
   clrscr();

     printf("Enter two real numbers\n");
     scanf("%f%f",&a,&b);

     c=Display(&a,&b);

     printf("The addition is %f",*c);

   getch();
   return 0;
}

float * Display(float *a,float *b)
{
   float c;
   c=*a+*b;
   return(&c);
}

The above progarm is not giving proper output while executing.

Output:
Enter two real numbers
2.3
3.5
The addition is -NAN

I am using Turbo C++ Compiler v3.0

Plz let me know how exactly the code is.

Thanks

it's because c is local variable and it will be destroyed as soon as the function returns.

• return it by value (it won't hurt ), or
• allocate (malloc()) and return