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Subject: Re: [Boost-users] How to use multi index container?
From: Joaquin M Lopez Munoz (joaquin_at_[hidden])
Date: 2013-10-18 08:09:41

yuan <yuanzhan <at>> writes:

> Hi,
> I try to use multi index container.I have one problem.
> Please help me.Thanks
> struct TOrder
> {
> char szDate[9]; //date type
>  int nID; // order id
> int nProductID; //product id
> double fPrice;//
> int nVol;//
> //other member
> …
> }
> The unique key of TOrder struct is szDdate and nID.
> How I can typedef the composite_key and the
> multi_index_container?

Assuming that comparison of szDate's is lexicographical, you can
write something like this:

struct DateCompare
  bool operator()(const char* x,const char* y)const
    return std::strcmp(x,y)<0;

typedef multi_index_container<
> TOrderContainer;

All of this should be explained in the tutorial. Which particular
difficulties got you stuck? Thank you,

Joaquín M López Muñoz
Telefónica Digital

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