Re: [Boost-users] [accumulators] Help required for using UDT as Sample

25 Feb 2009


      Apologies for all the noise, I found my coding error. The operator overloading had to be 'const'.

    bool operator < (const acc_sample &rhs) const {
        return _data._value < rhs._data._value;
    }

Instead of:
    bool operator < (const acc_sample &rhs) {
        return _data._value < rhs._data._value;
    }


Thanks,
-dhruva


----- Original Message ----
...
From: Eric Niebler 
To: boost-users@lists.boost.org
Sent: Wednesday, 25 February, 2009 10:37:42 AM
Subject: Re: [Boost-users] [accumulators] Help required for using UDT as Sample
dhruva wrote:
...
I have my own data type, time stamp and value. I would like to get the min 
Sample with corresponding time stamp.
class time_val {
public:
  time_t _time;
  double _value;
/* I have overloaded operators: <, >, ==, != */
/* Have provided copy constructor */
};
When I try:
accumulator_set< time_val, features > acc;
I get a whole lot of compilation errors. Is there any way I can make a UDT as 
a sample?
That should just work. Can you provide a complete example?
-- Eric Niebler
BoostPro Computing
http://www.boostpro.com
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