Previously UnPack would allocate data with new and assign it to a
raw pointer. This behavior makes it possible for the pointer to be
leaked in case of OOM. This commit defaults to use the user specified
pointer (which needs to implement a move constructor, a .get() and a
.release() operators), thus preventing these leaks.
* Add Builder and Table typedefs
This gives us a way to use templates to go from a builder to a table
and back again without having to pass both types in.
* Fix tests/cpp17/generated_cpp17/monster_test_generated.h
* Extend the test of MonsterExtra
- Extend C++ test of MonsterExtra
- Add conversion of fbs/json NaNs to unsigned quiet-NaN
- Update documentation (cross-platform interoperability)
* Fix declaration of infinity constants int the test
* Added a cpp UnPackSizePrefixed<struct_name> generated helper function
Missing helper function added to the cpp API generator for unpacking size prefixed structures
* Added generated test files
* Add `NaN` and `Inf` defaults to the C++ generated code.
* Refactoring: add FloatConstantGenerator
* Refactoring-2:
- remove isnan checking for all float/double values
- add most probable implementation of virtual methods of FloatConstantGenerator
* Add conditional (FLATBUFFERS_NAN_DEFAULTS) isnan checking
