Subject: Re: [boost] bad include guards
From: Josh Juran (jjuran_at_[hidden])
Date: 2017-01-22 21:26:26
On Jan 22, 2017, at 10:18 PM, Larry Evans <cppljevans_at_[hidden]> wrote:
> On 01/22/2017 08:09 PM, Steven Watanabe wrote:
>> On 01/22/2017 07:55 PM, Larry Evans wrote:
>>> Steven, do you have a program to detect files with identical
>>> include guards. I could you one at the moment :)
>> I might be able to track down the program
>> I used for this, but it would probably be
>> faster to write it again from scratch. I
>> suspect that it was just a short perl script.
> OK. Thanks anyway :)
> I'll give it a try myself.
Consider verifying that the include guard macro name is properly derived from the file's pathname. That protects you when renaming a header (and also catches typos), and has a complexity of O(1) instead of O(n^2) over the number of headers.
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