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preprocessor/5289: "cpp -traditional" inserts spurious line breaks
- From: schnetter at uni-tuebingen dot de
- To: gcc-gnats at gcc dot gnu dot org
- Date: Sun, 6 Jan 2002 14:09:03 +0100
- Subject: preprocessor/5289: "cpp -traditional" inserts spurious line breaks
>Number: 5289
>Category: preprocessor
>Synopsis: "cpp -traditional" inserts spurious line breaks
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Sun Jan 06 05:16:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Erik Schnetter
>Release: 3.0.3
>Organization:
Theoretische Astrophysik Tuebingen
>Environment:
System: Linux lilypond 2.4.10-4GB #1 Tue Sep 25 12:33:54 GMT 2001 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc-3.0.3/configure --prefix=/home/eschnett/gcc
>Description:
I use cpp to preprocess Fortran 77 code. I call cpp as "cpp
-traditional", and I find that cpp inserts spurious line breaks under
certain circumstances. cpp from gcc 2.95.3 works fine under the same
circumstances.
>How-To-Repeat:
The following three lines of source code (the first line ends with the
backslash) (note the second, empty line)
#define a b\
(a)
get wrongly preprocessed into the three lines
(b
)
I think that the result should consist of two lines only, namely
(b)
without the line break before the closing paren.
The above constellation appears in automatically generated code.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: