Valid C program, no errors (-Wall -Wextra -Wpedantic -Werror)

no_args.c

#include <stdio.h>

void test();

int main()
{
	printf("no args\n");
	test();
	return 0;
}

void test(int a, int b)
{
	if (a > b) {
		printf("A is larger\n");
	} else {
		printf("B is larger\n");
	}
}