This is (should be) the exact equivalent of the Cilia code in D:

• Types
  • int, long, float
• Variables
  • int x = 42;
  • auto x = 42;
  • immutable int x = 42;
  • string[] words;
  • HashSet!string names;
  • ContactInfo[string] contactInfoForID;
• Functions
  • int multiply(int a, int b) { return a * b; }
  • void print(ContactInfo a) { ... }
  • string concat(string a, string b) { return ...; }
• Loops
  • foreach (i; 1 .. 11) { ... }
  • foreach (i; 0 .. words.length) { ... }
  • foreach (i; [5, 7, 11, 13]) { ... }
  • foreach (word; words) { ... }

Note
In D int and 42 are 32 bits wide, not 64 bits.