Basic C++ Types

The type string is shorthand for a reference (pointer) to the first character in a null-terminated sequence of characters. Pointers will be discussed later.

The type bool stands for boolean (after George Boole):

• The symbol false is taken to stand for the value zero, while true stands for any nonzero value. (Compare to Racket's #f and #t.)
• bool is not a native C++ type (that is, tied to the machine's underlying architecture), but it is recognized by compilers.