User:Laurier Rochon/prototyping/triple loops

Getting the dual channel shift in C, using a WHILE or a FOR loop

Solution 1 : while loop + no modulo

#include "stdio.h"

int pat[]={1,1,1,0,1,1,0,1,0,1,1,0};


int main (){
	int len=sizeof(pat)/sizeof(int);

	int shifter=0;
	int i=0;
	int outer=0;
	int temp=0;

	for(outer=0; outer<len; outer++){
		for(shifter=0; shifter<len; shifter++){
			for(i=0; i<len; i++){
				
				temp = shifter+i;
				if(temp>len-1) temp-=len; 

				printf("%d",pat[i]);
				printf("  ");
				printf("%d",pat[temp]);
				printf("  ");
				printf("(%d)",i);
				printf("\n");
			}

		printf("- - - %d\n",(outer+1));

		}
	}
}

Solution 2 : for loop + modulo

#include "stdio.h"

int pat[]={1,1,1,0,1,1,0,1,0,1,1,0};


int main (){
	int len=sizeof(pat)/sizeof(int);

	int shifter=0;
	int i=0;
	int outer=0;
	int temp=0;
	
	for(shifter=0; shifter<len; shifter++){
		for(outer=0; outer<len; outer++){
			for(i=0; i<len; i++){			
				printf("%d",pat[i]);
				printf("  ");
				printf("%d",pat[((shifter+i)%12)]);
				printf("\n");
			}

		printf("- - -\n");

		}
	}
}