http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48865
Summary: It would be useful to have a way to check the value of
a #define at preprocessing time
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: preprocessor
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: b...@arklinux.org
When debugging compile failures in huge projects that heavily (ab)use
preprocessor macros, it would be useful to have a way to output the value of a
preprocessor token, e.g. something like
#define XYZ 42 // buried deep inside some header
#warning XYZ is ##XYZ
should say
XYZ is 42
or, better yet:
XYZ is 42 (defined in something.h:123, included from somethingelse.h:456,
included from stillsomethingelse.h:789)
