Basic Lines of Code in Cpp2

• Types
  • int, i32, i64, f64
• Variables
  • n: int = 42;
  • n := 42;
  • n: const int = 42;
  • words: vector<string> = ();
  • M := matrix<f64>(1000, 2000, 0.0);
  • contact_info_for_id: unordered_map<string, contact_info> = ();
• Functions
  • multiply: (a: int, b: int) -> int = a * b;
  • print: (a: contact_info) = { ...; }
  • concat: (a: string_view, b: string_view) -> string = ...;
• Loops
  • for 1..=10 do (i) { ...; }
  • for 0..<words.size() do (i) { ...; }
  • for (5, 7, 11, 13) do (i) { ...; }
  • for words do (word) { ...; }

Note
In Cpp2 int and 42 are typically 32 bits wide, not 64 bits.