For..Loop examples:

// ** forloop.d
// for..loop examples in D  - last tested with D v1.0
// To Compile: C:\dmd\MKoD_ex>..\bin\dmd forloop.d
private import std.stdio;

int main()
{
    int ix = 0; 
    
    writefln( "for..loop 1 to 10 (for..loop that's using main's ix)" );
    for ( ix = 1; ix <= 10; ix++ )
        writefln( " ix=%d", ix );
        
    writefln();
    
    writefln( "for..loop 10 to 1 (for..loop that's not using main's ix, but it's own)" );    
    for ( ix = 10; ix >= 1; ix-- )
        writefln( " ix=%d", ix );

    writefln();
 
    writefln( "for..loop 1 to 10 step by 2 (for..loop that's not using main's ix, but it's own)" );    
    for ( ix = 1; ix <= 10; ix += 2 )
        writefln( " ix=%d", ix );

    writefln();
   
    ix = 0;
    writefln( "forever for..loop, breaks out on 10 (is using main's ix)" );  
    for ( ;; )
    {
        ix++;
        writefln( " ix=%d", ix );
        if ( ix == 10 ) break;
    }
            
    return 0;
    
} // end int main()

C:\dmd\MKOD_ex>..\bin\dmd forloop.d
C:\dmd\bin\..\..\dm\bin\link.exe forloop,,,user32+kernel32/noi;

C:\dmd\MKOD_ex>forloop

for..loop 1 to 10
 ix=1
 ix=2
 ix=3
 ix=4
 ix=5
 ix=6
 ix=7
 ix=8
 ix=9
 ix=10

for..loop 10 to 1
 ix=10
 ix=9
 ix=8
 ix=7
 ix=6
 ix=5
 ix=4
 ix=3
 ix=2
 ix=1

for..loop 1 to 10 step by 2
 ix=1
 ix=3
 ix=5
 ix=7
 ix=9

forever for..loop, breaks out on 10
 ix=1
 ix=2
 ix=3
 ix=4
 ix=5
 ix=6
 ix=7
 ix=8
 ix=9
 ix=10

C:\dmd\MKOD_ex>