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Bug 195560

Summary:	more support for variadic variables in macro
Product:	cnd	Reporter:	Vladimir Voskresensky <vv159170>
Component:	Code Model	Assignee:	Vladimir Voskresensky <vv159170>
Status:	RESOLVED FIXED
Severity:	normal	CC:	alexvsimon
Priority:	P3
Version:	7.0
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:

Description Vladimir Voskresensky 2011-02-16 13:48:07 UTC

http://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html
describes a syntax like 
#define eprintf(format, ...) fprintf (stderr, format, ##__VA_ARGS__)
which has special interpretation of suppressing comma when input list is empty
+ named variadics
#define eprintf(args...) fprintf (stderr, args)

which we do not support

Comment 1 Vladimir Voskresensky 2011-03-03 10:38:40 UTC

*** Bug 196216 has been marked as a duplicate of this bug. ***

Comment 2 Vladimir Voskresensky 2011-03-03 10:39:08 UTC

Code example:
---------------8<--------------------
#define LOG(args...) fprintf(stderr, ## args)
int foo(char * env_map, char * env_log) {
    LOG("\n>>>NBBUILD: TOOLS=%s\n\tLOG=%s\n", env_map, env_log);
}
---------------8<--------------------
Actual expansion is:

int foo(char * env_map, char * env_log) {
    fprintf(stderr ,"\n>>>NBBUILD: TOOLS=%s\n\tLOG=%s\n" );
}

Expected expansion is:

int foo(char * env_map, char * env_log) {
    fprintf(stderr ,"\n>>>NBBUILD: TOOLS=%s\n\tLOG=%s\n", env_map, env_log);
}

Comment 3 Vladimir Voskresensky 2011-03-03 10:40:02 UTC

I will have a look, not sure about P2 status

Comment 4 Vladimir Voskresensky 2011-05-20 23:16:58 UTC

http://hg.netbeans.org/releases?cmd=changeset;node=03356b37017e

Comment 5 Quality Engineering 2011-05-22 08:52:06 UTC

Integrated into 'main-golden', will be available in build *201105220400* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main/rev/6f4f03d20303
User: Vladimir Voskresensky <vv159170@netbeans.org>
Log: fixed #195560 - more support for variadic variables in macro
- support named variadic macro parameters
(transplanted from 03356b37017e72f854f9d1b18162d9200c05e076)