------- Comment #1 from pinskia at gmail dot com 2008-09-17 03:13 ------- Subject: Re: New: gcc -E -dD prints predefined macros, contrary to docs
Sent from my iPhone On Sep 16, 2008, at 7:25 PM, "martinrb at google dot com" <[EMAIL PROTECTED] > wrote: > The docs for preprocessor -dD flag states > > `D' > Like `M' except in two respects: it does _not_ include the > predefined macros I think what it means by predefines are the ones included on the command line that are defined by the user via -D. > > > So one would expect -dD and -dM to differ substantially. > But.... > > ([EMAIL PROTECTED]) ~ $ gcc -E -dM -x c /dev/null | sort >/tmp/t1 > ([EMAIL PROTECTED]) ~ $ gcc -E -dD -x c /dev/null | sort >/tmp/t2 > ([EMAIL PROTECTED]) ~ $ diff /tmp/t[12] > 0a1,4 >> # 1 "<built-in>" >> # 1 "<command-line>" >> # 1 "/dev/null" >> # 1 "/dev/null" > ([EMAIL PROTECTED]) ~ $ wc /tmp/t[12] > 111 340 3482 /tmp/t1 > 115 352 3552 /tmp/t2 > 226 692 7034 total > ([EMAIL PROTECTED]) ~ $ gcc --version > gcc (GCC) 4.2.3 (Ubuntu 4.2.3-2ubuntu7) > > > -- > Summary: gcc -E -dD prints predefined macros, contrary to > docs > Product: gcc > Version: 4.2.3 > Status: UNCONFIRMED > Severity: normal > Priority: P3 > Component: preprocessor > AssignedTo: unassigned at gcc dot gnu dot org > ReportedBy: martinrb at google dot com > GCC host triplet: x86_64-linux-gnu > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37549 > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37549
