Libraries
Anyone who does serious application development would notice that standard C++ lacks library support on the level of e.g. Java or .NET. For example many applications need the following:
- GUI
- graphics
- diagrams and chart plots
- object persistence
- basic cryptography
- graph algorithms
- networking
- database
- XML; JSON
- basic linear algebra
There are 3th party libraries who fulfill this gap but it's always more difficult to get that up and running than if it would be stock present. Also external libraries have different styles and dialect. For example OpenCV defines its own set of rectangle and size. Boost.Ublas; OpenCV and LibTorch all use matrices but in a different way; a standard would have alleviated some startup problems when learning the library. Use of C++ for new application development is therefore a hard argument besides its excellent performance possibilities.
Boost
Boost fulfill some of these gaps. Their quality of libraries vary; some of them are even abandoned and not maintained anymore. Still I would like the following libraries to be incorporated in std as well:
- call_traits
- circular buffer
- container
- date-time (somewhat in C++20 in chrono)
- graph
- ios_state_saver
- iterator_range (somewhat in C++20 in ranges)
- serialization (but without the implicit by ref / by value assumptions)
- signal / slot
- string_algo
- tribool
- ublas
- unit
