[erlang-bugs] Bug in expansion of ?LINE macro
John Hughes
john.hughes@REDACTED
Tue Dec 2 11:26:25 CET 2008
Given this macro definition:
-define(RECEIVE(Msg,Body),
receive
Msg -> Body;
M ->
exit({unexpected_message,M,on_line,?LINE,was_expecting,??Msg})
after 10000 ->
exit({timeout,on_line,?LINE,was_expecting,??Msg})
end).
the first occurrence of ?LINE expands to the line number on which ?RECEIVE
appears, but the second occurrence of ?LINE expands to 1.
John
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