11.3.15 atom_codes/2 [ISO]

Synopsis

atom_codes(+Atom, -Codes)

atom_codes(-Atom, +Codes)

Codes is the codes comprising the printed representation of Atom.

Arguments

Codes

codes

The codes comprising the printed representation of Atom.

Atom

atom

The atom containing exactly those characters, even if the characters look like the printed representation of a number.

Description

Initially, either Atom must be instantiated to an atom, or Codes must be instantiated to a proper codes.

Any atom that can be read or written by Prolog can be constructed or decomposed by atom_codes/2.

Exceptions

instantiation_error

Atom and Codes are both uninstantiated

type_error

Atom is not an atom or Codes is not a list

domain_error

Codes is not a codes

representation_error

Codes is a list corresponding to an atom that can't be represented

See Also

atom_chars/2.