对于32位处理器架构，unsigned long long和typedef{unsigned int low,unsigned int high}u_int64_t 有什么不同？ unsigned longlong无法得到硬件上的支持，但是编译器可以支持unsigned long long, 但如果有三方库定义了typedef{unsigned int low,unsigned int ...

Speed is essential in multimedia, graphics and signal processing. Sometimes programmers resort to assembly language to get every last bit of speed out of their machines. GCC offers an intermediate ...