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From: alexandervpetrov@hotmail.com To: gcc-gnats@gcc.gnu.org Subject: preprocessor/5513: considers non-nested macro as nested one Date: Mon, 28 Jan 2002 05:06:00 -0000 [thread overview] Message-ID: <20020128130153.28850.qmail@sources.redhat.com> (raw) >Number: 5513 >Category: preprocessor >Synopsis: considers non-nested macro as nested one >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Mon Jan 28 05:06:01 PST 2002 >Closed-Date: >Last-Modified: >Originator: Alexander Petrov >Release: gcc version 2.95.1 19990816 (release) >Organization: >Environment: SunOS dionysus 5.7 Generic_106541-02 sun4u sparc SUNW,Ultra-5_10 >Description: Preprocessor considers a non-nested macro as nested one: # define A A_EXP B( # define B() B_EXP A A ) ) produces A_EXP B_EXP A_EXP B( ) and does not expand the last B macro. Like in PR 5498, the expansion of macro B has terminated by the time you get to the second ')', and therefore the second invocation of B is not nested, and B should be re-expanded. The handling of the last parenthesis in "A )" (in PR 5498) condtradicts with handling of the last parenthesis in "A ) )", so the expansion of at least one of these samples is incorrect. >How-To-Repeat: # define A A_EXP B( # define B() B_EXP A A ) ) >Fix: >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2002-01-28 13:06 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-01-28 5:06 alexandervpetrov [this message] 2002-01-28 5:49 neil
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