Re: [boost] boost.foreach overhead

Subject: Re: [boost] boost.foreach overhead
From: Vladimir Prus (vladimir_at_[hidden])
Date: 2010-10-18 05:45:53

Kai Schroeder wrote:

> On Mon, Oct 18, 2010 at 5:03 AM, Vladimir Prus <vladimir_at_[hidden]>wrote:
> 
>> OvermindDL1 wrote:
>>
>> > On Sun, Oct 17, 2010 at 3:47 PM, Eric Niebler <eric_at_[hidden]> wrote:
>> >> On 10/17/2010 2:39 PM, Christopher Jefferson wrote:
>> >>> Having to step through 69 steps to go through
>> >>> each stage of a for loop makes debugging almost impossible.
>> >>>
>> >>> It is for precisely this reason that most projects I work on forbid
>> >>> BOOST_FOREACH, and a similar preprocessing madness. They just make
>> >>> debugging, and tracking down compile-time errors, too hard.
>> >>
>> >> What debugger do you use? Visual Studio doesn't give me this grief.
>> >
>> > Ditto, but even if it did I could setup a debugging filter in it to
>> > ignore the extra steps in the VS debugger, can you not do that in GDB?
>>
>> Suprise -- no, you cannot.
>>
>>
> 
> As GDB is completely scriptable you can of course do that
> http://tromey.com/blog/?p=522

That blog post is not actually implementing step filters, for all I
can tell.

Of course, given that GDB is (i) computer program and (ii) open-source,
you can do pretty much anything, even without Python scripting, however
just because it's theoretically possible, this is not something that
average GDB user would even try.

- Volodya