Re: faster?
Re: faster?
- Subject: Re: faster?
- From: Sean McBride <email@hidden>
- Date: Fri, 03 Feb 2012 10:20:17 -0500
- Organization: Rogue Research Inc.
On Fri, 3 Feb 2012 12:45:11 +0100, Andreas Grosam said:
>> In my C++ code I'm using the libc++ library and my question is about
>which construct is faster:
>>
>> for(auto line : lines)
>> {
>> ...
>> }
>>
>> or
>>
>> for(auto it = lines.begin(); it != lines.end(); it++)
>> {
>> …
>> }
>
>The auto keyword reduces verbosity only - and makes the code more
>generic. A compiler should not generate different code - provided the
>containers 'lines' are of the same type.
Not so sure about that. Consider the points raised here:
<http://llvm.org/docs/CodingStandards.html#ll_end>
<http://llvm.org/docs/CodingStandards.html#micro_preincrement>
But this seems off-topic for this list...
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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| References: | |
| | >faster? (From: Luca Ciciriello <email@hidden>) |
| | >Re: faster? (From: Andreas Grosam <email@hidden>) |