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I don't think there is a problem with modern systems with using std::vector (and also std::unique_ptr which will help with making arrays of pointers).
Schemes to hide them from the header files I think add unnecessary overhead, if an object uses a std::vector it will have to be declared in the header file.
Certainly the implementations are using exceptions as a way to encode "unlikely" branches of if statements. I think this is much more common with shared_ptr and with multithreading stuff, not sure how helpful it is for std::vector. Just because so many system libraries use them I'm not sure if disabling exceptions works now or does anything to the compile. IMHO we should be supporting exceptions, in particular a callback should be able to throw one and it causes the Fl::run() or similar function to throw it, rather than crashing. This was done in fltk2.0, not thoroughly tested but a button that threw an exception worked.
On 10/29/21 7:33 PM Bill Spitzak wrote:
> I don't have any problem with using std::vector, it was not used back
> in the day because it used much more memory and was slower than naive
> C implementations, but this is not true any more.
Bill, would you recommend to use std::vector inside the FLTK library? I
mean: inside, not in the public API.
Doing so could simplify code development for some new features where we
often need to maintain dynamic arrays. I know we discussed this several
times and there were some concerns (doubts) regarding compiler
compatibility and such.
As Ian mentioned in this thread, some implementations of containers
might pull in exceptions which we don't want. Do you have any insights
on this?
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