Programming

#include <stdio.h> 

int main(void) {
    
    float a, b , result;
    
    printf("\t\tThis program is only a test for %% C function\n");
    printf("Enrer two numbers: ");
    scanf("%f %f", &a, &b);
    
    // Test if input number has fractional part or not 
    
    if ( (a > 0) && (a - (int) a ) == 0 && (b > 0) && (b - (int) b ) == 0) {
        (int) (result = ((int) a) % ((int)b));
        printf("Result: %d\n", result);
        return 0;
      }
    else if ( (a < 0) && a + ( (int) - (a) ) == 0 && (b < 0) && b + ( (int)-(b) ) == 0) {
        (int) (result = ((int) a) % ((int)b));
        printf("Result: %d\n", result);
        return 0;
      }
    else if ( (a > 0) && (a - (int) a ) == 0 && (b < 0) && b - ( (int) - (b) ) == 0) {
        (int) (result = ((int) a) % ((int)b));
        printf("Result: %d\n", result);
        return 0;
      }
    else if ((a < 0) && a - ((int)-(a)) == 0  && (b > 0) && (b - (int) b ) == 0) {
        (int) (result = ((int) a) % ((int)b));
        printf("Result: %d\n", result);
        return 0;
        }
    else
        printf("Cannot perform action\n");
        return 1;
    }

int fraction_is_zero(double val)
{
     double b=floor(val);
     int retval=(b>0) ? 0 : 1;
     return retval;
}

int ival=(int)fval;
float d=abs(fval-ival);
if(d < 0.000000001)
{
        printf("Float %f has no fractional part\n");
}