11.3.14 atom_chars/2 [ISO]

Synopsis

atom_chars(+Atom, -Chars)

atom_chars(-Atom, +Chars)

Chars is the chars comprising the printed representation of Atom.

Arguments

Chars

chars

The chars 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 Chars must be instantiated to a proper chars.

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

Exceptions

instantiation_error

Atom and Chars are both uninstantiated

type_error

Atom is not a number or Chars is not a list, or Chars is not a chars

representation_error

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

See Also

atom_codes/2.