Thread: No type and no parameter in prototype and code is compiling

Hi,

I recently wrote a c program and as you may see i declared function before main but i did not enter any type (int) or parameter. why is it compiling?

Code:

#include <stdio.h>


void spec();


int main()
{
unsigned int i;
int numbers[100];
int even = 0, odd = 0;


spec();


}


void spec(int i, int numbers[], int even, int odd)
{


printf("%s", "Enter 100 numbers:\n");


for (i=0; i<100; i++)
{
    scanf("%d", &numbers[i]);


    if (numbers[i] % 2 == 0)
        even++;
    else
        odd++;
    printf("even is %d odd is %d\n", even, odd);
}
}


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