| gets the code of a character or reversely.
char_code(+Char, -CharCode)
char_code(-Char, +CharCode)
If Char is an atom with length 1 then CharCode gets unified
with the code of Char.
If Char is a variable then Char gets unified with the character
belonging to CharCode.
Arguments
Char character (atom with length=1)
CharCode integer (character code of unicode charater
between 0'\u0000 and 0'\uffff)
Examples
| char_code('a', X). |
Succeeds with substitution X <- 97 |
| char_code(Y, 98). |
Succeeds with substitution Y <- 98 |
| char_code('c', 99). |
Succeeds. |
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,
number_chars/2,
number_codes/2,
parse_atom/2/3,
sub_atom/5.
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