Function Parameter Evaluation Order in C

It's worth noting that parameter expressions are evaluated like everything else from right to left. Of course, this only matters when passing at least one argument expression to a function that may change the value of another argument.

#include <stdio.h>
 
void func(int a, int b, int c, int d)
{
	printf("%d %d %d %d\\n",a,b,c,d);
}
 
int main()
{
	int x = 0;
	func(++x,++x,++x,++x);
	return 0;
}

Results in the following:

4 3 2 1