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tyi(-Code)
Succeeds if the code of the next character read in raw mode from the
current input is successfully unified with Code.
- Code
- Variable or integer.
Description
   Takes the next character from the current input and unifies its integer
   character code (in the range 0 to 255) with Code.  The input is in raw mode
   so that no newline character must be typed.
   Character codes for the non-printable characters (i.e.  control characters)
   are also acceptable.
Modes and Determinism
Exceptions
- (5) type error 
- Code is instantiated, but not to an integer.
- (190) end of file reached 
- End of file was encountered before reading any character.
- (198) reading past the file end 
- Trying to read even after the error 190 was raised.
Examples
   Equivalent to tyi(input, Code).  (see tyi/2 for details).
See Also
tyi / 2, tyo / 1, tyo / 2