Re: [boost] [thread][serialziation]Patch: unused variables

From: Jeff Garland (jeff_at_[hidden])
Date: 2006-08-24 10:15:10

Vince Tse wrote:
> When compiling the Boost source tree (Aug 22, 2006 snapshot) with GCC 3.4 on
> Gentoo Linux on AMD64, you¹ll get 3 warnings about unused variables.  The
> patch is attached.
> 
> Building:
> bjam -sTOOLS=gcc -s"GCC=gcc -Wall -Werror" -s"GXX=g++ -Wall -Werror" -q
> stage
> 
> Compiler:
> gcc (GCC) 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)
> Copyright (C) 2004 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> Uname:
> Linux ses0247 2.6.15-gentoo-r5-1 #2 SMP Fri Mar 10 17:11:28 UTC 2006 x86_64
> Dual Core AMD Opteron(tm) Processor 275 AuthenticAMD GNU/Linux
> 
> 
> 
> The 3 variables concerned are created to be used in an assert() statement,
> but any asserts get replaced with static_cast<void>(0), thus resulting in an
> unused variable.  Breaking up declaration and initialization fixes this
> issue.

I've simply added the impacted libraries to the title so that the respective 
authors will have a look -- it's always a good idea to do this given the 
amount of traffic on the list...

Jeff