use SBE generated message types as plain C/C++ structure

[ayubsayyad]

[C++]
I understood that SBE is for sending messages on wire, but often we use same types in our program to pass to functions and get values populated before doing so. Here we always need to provide buffer externally and maintain its lifetime

e.g.
Car carObj;
carObj.serialNumber(1234); //segmentation fault, as expected

can we generate something as below, this will enable developers not to maintain buffer explicitly. This will be backward compatible as we will not touch auto generated Car object.

struct CarWrapper{
CarWrapper(){
obj.wrap(buffer, 0, ..., ...)
}
Car obj;
char buffer[];
};

[tmontgomery]

This could be auto-generated, yes. But I think it is also possible to use a template to do this. Create a template that can hold an SBE codec (the template param) and use operator() to return the codec for usage. The template would hold the buffer as a std::array with the length being the largest expected length.