DPaste - Paste #2401 - pastebin, online compiler and collaboration tool dedicated to D Programming Language

Code

module test;

import std.stdio;
import std.range;

struct MyLockStep(alias sentinel)
{
    int[] arr1;
    int[] arr2;

int opApply(int delegate(int, int) dg) 
    {
        int res;
        
        while (!arr1.empty || !arr2.empty)
        {
            int e1;
            if (arr1.empty)
            {
                e1 = sentinel;
            }
            else
            {
                e1 = arr1.front;
                arr1.popFront;
            }
            
            int e2;
            if (arr2.empty)
            {
                e2 = sentinel;
            }
            else
            {
                e2 = arr2.front;
                arr2.popFront;
            }
            
            res = dg(e1, e2);
            if (res) 
                break;
        }

return res;
    }        
}

void main()
{
    int[] arr1 = [1, 2];
    int[] arr2 = [2, 4, 3];
    
    bool state;
    foreach (aa, bb; MyLockStep!(-1)(arr1, arr2))
    {
        writeln(aa, " ", bb);
    }
}

Application output:

1 2
2 4
-1 3

Paste info

Author: Guest

Views: 98

Private: no

Expires: Never

Uploaded: 18.09.12 1:01

Votes: 0

Compilation

Compiler: DMD 2.060

Pointer size: m32

Code

Application output:

Paste info

Compilation

Actions

Confirm

Confirm