| Preprocessor |
| #include <stdio.h> | includes contents of stdio.h |
| #error text | display text as compile time error |
| #warning text | display text as compile time warning |
| #pragma | compiler specific options |
| #define M | define M |
| #undef M | undefine M |
| #if (condition) | conditional compiling |
| #ifdef M | compiled if M is defined |
| #ifndef M | compiled if M is not defined |
| #elif (condition) | conditional compiling |
| #else | conditional compiling |
| #endif | end conditional section |
| defined() | is macro defined. |
| !defined() | is macro not defined |
| M ## D | combines M and D into MD |
| #M | treat M as string "M" |
|
| Syntax |
| if (bool expr) block [else block] |
| for ([expr];[condition];[expr]) block |
| while (condition) block |
| do { } while (condition) |
| type identifier([type identifier, ...]); |
| type identifier([type identifier, ...]) { } |
| class identifier [:[private|public] type, ...]; |
| class identifier [:[private|public] type, ...] { [private:] }; |
| struct identifier [:[public|private] type, ...]; |
| struct identifier [:[public|private] type, ...] { [public:] }; |
| union identifier; |
| union identifier { type identifier; ... }; |
| enum identifier; |
| enum identifier { identifier [=int_value], ... }'; |
| typedef type identifier; |
|