标签：
https://gcc.gnu.org/onlinedocs/cpp/Macros.html#Macros
Object-like Macros
Function-like Macros
Macro Arguments
Stringification
Concatenation
Variadic Macros
Predefined Macros
Undefining and Redefining Macros
Directives Within Macro Arguments
Macro Pitfalls
C语言宏怎么玩儿得更好？
原文地址：http://my.oschina.net/rinehart/blog/360279
