Reject float number in C PROGRAMMING

See more:

C

#include <stdio.h>
void main(void)
{
float value;
int int_test(float);
printf("Your Number: ");
scanf("%f", &value);
while (value !=0)
{
int_test(value);
printf("Your Number: ");
scanf("%f", &value);
}
}
int int_test(float a)
{
int result;
if (a<0)
{
printf("The number you have entered is negative\n");
result = -1;
return result;
}
else if ((a>0) && (int)(a-a>0))
{
printf("The number you have entered is not an integer\n");
result = 0;
return 0;
}
else
{
printf("The number you have entered is %g\n",a);
return a;
}
}

I got an error that when i key in the float number it should be giving me the output screen that the number is not an integer, but it show the DIRECTLY FLOAT NUNMBER..may i know where is the error of my coding?