Re: Why use C++?

[Niklas Holsti <niklas.holsti@tidorum.invalid>]

Stuart Redmann wrote:
> Stuart Redmann wrote
>>> Just one example: We use a lot of COM components in our company. If I
>>> want to use them under C++, I have to
>>> (A) Make sure that I initialize the COM run-time properly,
>>> (B) #import the type libraries,
>>> (C) generate mapping classes from the type libraries so that I can use
>>> the interfaces like I can do under VB.
> 
> Paul wrote:
>> Yes the right tool for these type of applications is usually not C++. If
>> your project was to create the COM object  then C++ would probably be the
>> language of choice.
> 
> It is ;-)
> 
> Sometimes I wish that there was a C++ interpreter as well. This way I
> had to remember only one set of run-time library calls instead of two.
> However, the industry prefers to re-invent the nth virtual machine and
> the xth GUI toolkit. And of course, none of the popular programming
> languages (not even Ada95) supports proper non-wrapping unsigned
> integer types (and I have to use unsigned types for image
> processing).

In what way does Ada (95, or the current standard 2005) not support your 
needs for unsigned types?

If you dislike the wrapping behaviour of the Ada "modular" unsigned 
types, what is wrong with defining your own unsigned integer type in 
Ada, as in

    type My_Number is range 0 .. 53621;

or whatever range you need. This gives you non-wrapping arithmetic with 
run-time checks for overflow, underflow, and range.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
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