Re: [Boost-users] boost::tuple in std::map

Subject: Re: [Boost-users] boost::tuple in std::map
From: Kyle Edwards (kedwards_at_[hidden])
Date: 2015-06-05 08:43:11

UJ,

Please look at the documentation for std::map for information on how to
write your own comparator. http://www.cplusplus.com/reference/map/map/


Basically, you write a comparator class that overloads the () operator
to accept two tuples, do whatever you need to do to compare them, and
provide this as the Compare parameter of the std::map template.
-- 

Kyle Edwards

Software Developer





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On Fri, 2015-06-05 at 12:21 +0000, Uthpal Urubail wrote:
> Experts,
> 
> I am using boost::tuple as key in std::map. I would like to write my
> own comparison method (considering tolerance in comparison)
> 
>  
> 
> The default comparison defined in tuple_comparison.hppis of no use to
> me. 
> 
> Any help in this is highly appreciated.
> 
> Regards,
> 
> UJ
> 
> 
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