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Re: [Help-gsl] Why are standard (*, +, etc) operators not overloaded for

From: Gideon Simpson
Subject: Re: [Help-gsl] Why are standard (*, +, etc) operators not overloaded for complex numbers in C++
Date: Sun, 28 Jan 2018 13:38:18 -0500

Didn't ANSI C99 add a complex type, _Complex_I?  Not sure if it supports

On Sun, Jan 28, 2018 at 1:01 PM, John D Lamb <address@hidden> wrote:

> On 27/01/18 19:38, Vincent Vandalon wrote:
>> Dear All,
>> I am curious why the standard binary operators are not overloaded for the
>> gsl_complex type in C++; I presume this overloading is omitted
>> intentionally (since you can quickly write them yourself). Was the choice
>> to omit overloaded operators mainly driven by the desire to avoid
>> accidentally/non-explicit casting of a built-in type to gsl_complex?
> Presumably because gsl is written in C.
> I don’t think C has a complex type. In any case the C++ complex type seems
> to be difficult to make compatible with the gsl representation while
> maintaining the original code in C.
> I realise it is possible to do some sort of conversion/casting in C++. But
> this is not likely efficient.
> --
> John D Lamb


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