Node:Index of Directives, Next:Option Index, Previous:GNU Free Documentation License, Up:Top

## Index of Directives

- `#assert`: Assertions
- `#define`: Object-like Macros
- `#elif`: Elif
- `#else`: Else
- `#endif`: Ifdef
- `#error`: Diagnostics
- `#ident`: Other Directives
- `#if`: Conditional Syntax
- `#ifdef`: Ifdef
- `#ifndef`: Ifdef
- `#import`: Obsolete once-only headers
- `#include`: Include Syntax
- `#include_next`: Wrapper Headers
- `#line`: Line Control
- `#pragma GCC dependency`: Pragmas
- `#pragma GCC poison`: Pragmas
- `#pragma GCC system_header`: Pragmas, System Headers
- `#sccs`: Other Directives
- `#unassert`: Assertions
- `#undef`: Undefining and Redefining Macros
- `#warning`: Diagnostics