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open(
+FileName,
+Mode,
-Stream)
fopen
) and the resulting
stream is unified with Stream. Mode is one of:
read
write
append
close(
+Stream)
absolute_file_name(
+RelativeName,
?AbsoluteName)
.pl
extension),
AbsoluteName is unified with the full path name of this file.
current_input(
?Stream)
SP_curin
.
current_output(
?Stream)
SP_curout
.
set_input(
+Stream)
set_output(
+Stream)
flush_output
flush_output(
+Stream)
from_alias_to_stream(+
Alias,?
Stream)
add_stream_alias(+
Stream_or_Alias,+
Alias)