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c/945: Preprocessor errors for long long integer constants under wrong conditions
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c/945: Preprocessor errors for long long integer constants under wrong conditions
- From: Joseph Myers <jsm28 at cam dot ac dot uk>
- Date: Thu, 30 Nov 2000 19:32:23 +0000
- Cc: jsm28 at cam dot ac dot uk
>Number: 945
>Category: c
>Synopsis: Preprocessor errors for long long integer constants under wrong conditions
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Nov 30 11:36:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Joseph S. Myers
>Release: 2.97 20001129 (experimental)
>Organization:
none
>Environment:
System: Linux decomino 2.2.17 #1 Mon Sep 4 20:22:16 UTC 2000 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc-cvs/configure --prefix=/opt/gcc/snapshot --disable-shared --enable-threads=posix --with-system-zlib
>Description:
GCC gives preprocessor errors for the use of LL-suffixed integer
constants in #if expressions under the wrong conditions. The correct
rules, following the definitions of the relevant command line options,
are:
* -std=c89 or -std=gnu89 without -pedantic, accept silently.
* -std=c89 or -std=gnu89 with -pedantic, warning (not error).
* -std=c89 or -std=gnu89 with -pedantic-errors, error.
* -std=iso9899:199409, as -std=c89.
* C99 mode, accept regardless of pedantic setting.
At present, it is wrongly the use of -std=c89 which turns on errors
for this usage.
>How-To-Repeat:
Preprocess
#if 1LL
foo
#endif
with different command line options.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: