How do i call the below function in C?

Question

Returning true or false

bool valid_triangle(float x, float y, float z);

    int main(void)
    {
        float a = get_float("Enter the 1st Value : \n");
        float b = get_float("Enter the 2nd Value : \n");
        float c = get_float("Enter the 3rd Value : \n");
        return valid_triangle(a,b,c);
    }

    bool valid_triangle(float x, float y, float z)
    {
        if(x <= 0 || y <= 0 || z <= 0 )
        {
            return false;
        }
        if((x + y <= z) || (x + z <= y) || (z + y <= x))
        {
            return false;
        }
        return true;
    }

Answer 1

Change:

return valid_triangle(a,b,c);

to:

bool result = valid_triangle(a,b,c);
printf("%d\n", result);

Explanation: the C11 standard mentions these two valid signatures of main function:

int main(void);
int main(int argc, char* argv[]);

None of them doesn't return bool.