Mr. Cooooooooooooode

學了這麼久的C/C++

來整理一下會用到的Marco

01. #define

02. #if, #else, #elif, and #endif

03. #ifndef and #ifdef

04. #undef

05. #line

06. #pragma

07. # : The # operator, which is generally called the stringize operator, turns the argument if precedes into a quoted string

For example:

#define mkstr # s

08.  ## : The ## operator, called the pasting operator, concatenates two tokens

For example:

#define concat(a, b)  a##b

09.  __LINE__, __FILE__, __DATE__, __STDC__, and __cplusplus

程式之美在於博大精深！