> Am 22.01.2019 um 13:33 schrieb Brad King <brad.k...@kitware.com>:
>
> On 1/22/19 7:09 AM, tors...@robitzki.de wrote:
>
>> How about adding the ability to add such function? Like:
>>
>> procedure(LIST_LENGTH list)
>> list(LENGTH list length)
>> return(${length})
>> endprocedure()
>
> We don't have a syntax for invoking functions with return values.
> That’s a whole other discussion.
With `$CACHE{VAR}` and `$ENV{VAR}` we already have the syntax for calling a
„function“. What is missing, is a command to define a function and a command to
specify the return value of a function.
Once we have this, it would be possible to define $LIST_LENGTH in the CMake
language itself. And real functions with return values could make writing in
CMake language much more easier.
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