modulo Strangeness?

[Taylor Hillegeist via Digitalmars-d-learn]

I have a simpleish bit of code here that always seems to give me 
an error, and i can't figure out quite why. If I have a constant 
43 in the modulo if breaks. however if i use points.length it 
seems to be ok?

import std.stdio;
void main(){
	int points[43] = [0, 1153, 1905, 1996, 1392,  305, 
-888,-1773,-2041,-1600, -603,  603, 1600,2041, 1773,  888, 
-305,-1392,-1996,-1905,-1153, -0,1153, 1905, 1996, 1392,305, 
-888,-1773,-2041,-1600, -603,  603, 1600, 2041, 1773,  888, 
-305,-1392,-1996,-1905,-1153,    0];
	
	foreach(int x; points){
		writeln("List Value: ",points[(x%43)],"\t");
	}

}