I stumbled into a problem today that I can\'t seem to solve. I am compiling a shared library that includes a templated class (Derived<T>, whose base is Base) and some explicit instantiations of
For my GUI API which works with a variety of backends (sdl, gl, d3d开发者_如何学JAVA, etc) I want to dynamically cast the generic type image to whatever it may happen to be.
I\'d like some information about best practices when comparing pointers in cases such as this one: class 开发者_StackOverflowBase {
I found that dynamic_cast didn\'t work 开发者_C百科in a situation where I expected it to, and looking at the typeid of the objects at runtime has made the situation even less clear. I just want a cast
I\'m having problem with dynamic_cast. i just compiled my project and tested every thing in debug mode and then i tried compiling it in release mode, i have copied every configuration from debug mode
class CBase { }; class CDerived: public CBase { }; CBaseb; CBase*pb; CDerivedd; CDerived* pd; pb = dynamic_cast<CBase*>(&d);// ok: derived-to-base
I know that it\'s legal to use dynamic_cast to do a \"cross-cast\" across a class hierarchy.For example, if I have classes that look like this:
Thanks in advance for reading.This is a picky design question in that I have an adequate solution, but question if there isn\'t a better way via templates, which I\'m not very experienced with.
I have a library with C++ python extensions (C++ calls python which in turn calls C++) using boost::python and python libraries (this is messy, but a lot of it is legacy) which when tested standalone
I have something like this: enum EFood{ eMeat, eFruit }; class Food{ }; class Meat: public Food{ void someMeatFunction();
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