To implement virtual functions, C++ uses a special form of late binding known as the virtual table. The virtual table is a lookup table of functions u Read More
As it turned out this is a special kind of pointer. The this pointer stores the address of the class instance, to enable pointer access of the members Read More
造个简单的轮子倒是不难，但可用性健壮性高到qt这样全世界都在用，就几乎不可能了比如自己写个事件循环实现信号槽，还真不难，我这边的架构里就这么搞了个仿osgi的事件总线嵌入式实时操作系统上能用的大型gui框架，这句话足够日天了，也就qt一家…… qt诞生比mfc还早，基本上是全期压制mfc的，只是亏在 Read More