| relates a number and the list of the one-character atoms forming that number.
number_chars(+Number, -List)
number_chars(-Number, +List)
If Number is a number and List is a variable then List
will be unified with the list of one-character atoms
whose elements correspond to
the sequence of characters of the textual representation of Number.
If Number is a variable then List must be a list of
one-character atoms. The concatenation of these one-character atoms must
be parsable as number. Number will be unified with the resulting number.
Arguments
Number number
List list of characters (atoms with length=1)
Examples
| number_chars(1234, L). |
Succeeds with substitution L <- ['1', '2', '3', '4'] |
| number_chars(N, ['2', '7', '.', '1', '1']). |
Succeeds with substitution N <- 27.11 |
| number_chars(14.3, ['1', X, '.', Y]). |
Succeeds with substitution X <- 4, Y <- 3 |
Standard
This predicate is part of the ISO-Prolog Standard.
See also
atom_chars/2,
atom_codes/2,
atom_concat/3,
atom_length/2,
atom_number/2,
char_code/2,
number_codes/2,
parse_atom/2/3,
sub_atom/5.
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