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Re: Proposal for automatic generation of c++ header files
On Fri, Jan 14, 2011 at 6:20 PM, Richard Kenner
<kenner@vlsi1.ultra.nyu.edu> wrote:
>> The Ada people call their headers 'specifications', because a lot of
>> program specifications are placed in those headers.
>>
>> But they are not specifications in a sense that you can have multiple
>> implementations of them. I.e. there is a 1-to-1 correspondence between
>> Ada package declarations and package bodies.
>>
>> Feel free to correct me if I am mistaken.
>
> You are mistaken. ?;-)
I am not mistaken. For a single Ada program that compiles
successfully, there is 1-to-1 correspondence of a package declaration
and package body.
>
> It's not uncommon to have multiple different implementations of the
> same specification, for example for different target architectures or
> one might be production and the other development.
That's what conditional compilation, modules and build systems are for.