Re: [boost] [warnings] Are warnings acceptable artifactsfrom builds?

Subject: Re: [boost] [warnings] Are warnings acceptable artifactsfrom builds?
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-09-08 21:57:18

AMDG

Thomas Klimpel wrote:
> Michael Fawcett wrote:
>   
>> You can
>> either ignore the warning or put it in a template specialization which
>> would get rid of the warning.  Is it defined in the standard that the
>> conditional will *always* get optimized away?  If it isn't, that seems
>> like a reasonable warning.
>>     
>
> MSVC explicitly says whether a warning is just a performance warning, and C4127 is not a performance warning. It is a warning to inform the programmer about a possible mistake (IIRC, if(true) or if(false) don't trigger this warning).

But while(true) does trigger it.  (which is really annoying.)

>> I don't think that works with templates.  Typically to silence errors
>> in template code, the user must put those pragmas around the point of
>> instantiation.
>>     
>
> I hope you're joking.
>   

For msvc, warnings need to be suppressed around the point of definition.

In Christ,
Steven Watanabe