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# compiled_stream(-Stream)

Succeeds if the I/O stream currently being compiled is Stream.

Stream
  Atom, Integer or variable.

## Description

Used to find the stream that is currently being compiled. compiled_stream/1 is meaningful mainly in queries inside a compiled file, or in event handlers for compilation events.

### Modes and Determinism

- compiled_stream(-) is semidet

### Fail Conditions

Fails if no compilation from a stream is currently active

### Exceptions

(5) type error
  Stream is instantiated, but not to an atom or integer.

## Examples

        [eclipse]: [user].
         a.
         :- compiled_stream(S), get_stream_info(S, name, File),
            printf("Compiling stream %d, file %s\n", [S, File]).
        Compiling stream 0, file user
        ^D
         user       compiled traceable 28 bytes in 0.00 seconds

        yes.
        [eclipse]: exec('cat a.pl', []).
        a.
        :- compiled_stream(S), get_stream_info(S, name, File),
           printf("Compiling stream %d, file %s\n", [S, File]).

        yes.
        [eclipse]: [a].
        Compiling stream 5, file /home/joe/a.pl
        a.pl       compiled traceable 28 bytes in 0.00 seconds

        yes.

## See Also

compile / 1, compile / 2, compile_stream / 1