ave.d

import std.algorithm;
import std.stdio;

enum INPUT = "cqrb lryqna rb fjh, fjh qjamna cqjw axc cqracnnw. qnan, hxd wnena twxf qxf oja cx bqroc! xq kh cqn fjh, cqn jwbfna rb mnjmvjwblqnbc.";

void main() {
   foreach ( offset; 0..25 ) {
      writeln( map!( ( dchar c ) {
         if ( c < 'a' ) return c;
         if ( 'z' < c ) return c;
         return cast( dchar )( ( ( ( c - 'a' ) + offset ) % 26 ) + 'a' );
      } )( INPUT ) );
   }
}

gdb.log

Program received signal SIGSEGV, Segmentation fault.
0x080499cd in ave.main.__dgliteral1 (this=0x0, c=99) at Documents/code/d/programlets/hacker.org/ave.d:11
11	         return cast( dchar )( ( ( ( c - 'a' ) + offset ) % ( 'z' - 'a' + 1 ) ) + 'a' );
(gdb) bt
#0  0x080499cd in ave.main.__dgliteral1 (this=0x0, c=99) at Documents/code/d/programlets/hacker.org/ave.d:11
#1  0x08049ab1 in ave.main.Map!(__dgliteral1,string).Map.fillCache (this=0xffffda90) at /usr/include/d/std/algorithm.d:152
#2  0x08049ae2 in ave.main.Map!(__dgliteral1,string).Map.this (this=0xffffda90, input=578266287835185284) at /usr/include/d/std/algorithm.d:163
#3  0x0804984e in ave.main.map!(delegate dchar(dchar c)
{
if (cast(uint)c < 97u)
return c;
if (122u < cast(uint)c)
return c;
return cast(dchar)((cast(uint)c - 97u + cast(uint)offset) % 26u + 97u);
}
).map!(string).map (this=0xf7d49e40, __HID1=0xffffdad4, r=578266287835185284) at /usr/include/d/std/algorithm.d:108
#4  0x08049800 in D main () at Documents/code/d/programlets/hacker.org/ave.d:12
#5  0x0804fe56 in rt.dmain2.main() ()
#6  0x0804fdb0 in rt.dmain2.main() ()
#7  0x0804fe9a in rt.dmain2.main() ()
#8  0x0804fdb0 in rt.dmain2.main() ()
#9  0x0804fd56 in main ()