Re: [Boost-users] [units] Missing quantity operator++, operator%

Subject: Re: [Boost-users] [units] Missing quantity operator++, operator%
From: Matthias Schabel (boost_at_[hidden])
Date: 2012-06-13 10:47:38

If one or more of you can put together a proposed patch, I can take a look at it. Otherwise, I will try to put it on my fairly long to-do list... Maybe also submit a ticket?

Thanks,

Matthias

> All,
> 
> On Thu, Jun 7, 2012 at 1:25 AM, Daryle Walker <darylew_at_[hidden]> wrote:
>>> Date: Wed, 6 Jun 2012 21:33:14 -0600
>>> From: Nathan Crookston
>> 
>>> I'm in the process of switching my homegrown units system over to
>>> boost units. Some operators which I'm missing are the modulus and the
>>> pre and post increment operators.
>> If you look at "++" and "--" as "x + 1" and "x - 1", then they don't make
>> sense.  Put if you look at them as successor and predecessor, then they
>> would make sense for any type where such ordering can be established.
>> So, the operators should be supported, but call the inner type's version
>> of those operators instead of causing a compile error (unless the inner
>> type doesn't have those operators).
> 
> Agreed.
> 
>>> I haven't found anything regarding the modulus operator. My question
>>> is, would a patch adding those operators be accepted?
>> 
>> Hopefully.
>> 
> <snip modulus definition>
>> (I'm assuming that addition is also commutative.)  Note that quotients are
>> unit-less scalars, while remainders have the same units as the main type
>> (used for the divisor and dividend).
> 
> I agree with this also.
> 
> Pinging again in hopes that one of the units maintainers sees. . .
> 
> Thanks,
> Nate
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