attributes.h File Reference
Detailed Description
Defines variants of the __attribute__ macros to provide better portability.
- Author:
- Robert Love (Creator), ejt (more version specificity)
- Author
- ejt
- Name
- Revision
- 1.6
- State
- Exp
- Date
- 2007/02/06 19:40:51
Definition in file attributes.h.
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Defines | |
| #define | ATTR_always_inline |
| triggers inlining even when no optimization is specified | |
| #define | ATTR_pure |
| compiler hint that the function has no side effects and return value depends only on arguments and non-volatile globals | |
| #define | ATTR_const |
| like ATTR_pure, compiler hint that the function has no side effects and return value depends only on arguments -- unlike ATTR_pure, cannot access globals or dereference pointer arguments. | |
| #define | ATTR_noreturn |
| indicates that the function is 'fatal' and will not return; however, can still throw an exception! | |
| #define | ATTR_malloc |
| compiler hint that a non-NULL pointer return value is guaranteed to be a unique address (e.g. malloc) | |
| #define | ATTR_must_check |
| indicates that a warning should be given if caller doesn't use the return value, e.g. newly allocated memory regions | |
| #define | ATTR_deprecated |
| triggers a warning if the function/variable is referenced by any code which is not itself marked with ATTR_deprecated | |
| #define | ATTR_used |
| forces the code for the function to be emitted even if nothing appears to reference it -- handy when called by inline assembly | |
| #define | ATTR_unused |
| indicates no warning should be given if the specified value goes unused, e.g. fulfilling an interface which requires superfluous arguments | |
| #define | ATTR_packed |
| requests that members of a struct or union be layed out a densely as possible to minimize memory usage; applied to enums requests smallest storage type be used | |
| #define | ATTR_likely(x) (x) |
| should be passed a value within an 'if' statement to hint that the value is likely to be 'true' (i.e. non-zero) | |
| #define | ATTR_unlikely(x) (x) |
| should be passed a value within an 'if' statement to hint that the value is unlikely to be 'true' (i.e. likely to be 'false' or 0) | |
| #define | EXPORT_SYMBOL |
| #define | LOCAL_SYMBOL |
