lc-addrlabels.h File Reference

Implementation of local continuations based on the "Labels as values" feature of gcc.

Author

Adam Dunkels adam@.nosp@m.sics.nosp@m..se

This implementation of local continuations is based on a special feature of the GCC C compiler called "labels as values". This feature allows assigning pointers with the address of the code corresponding to a particular C label.

For more information, see the GCC documentation: http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html

Thanks to dividuum for finding the nice local scope label implementation.

Macros
#define	LC_END(s)
#define	LC_INIT(s)   s = NULL
#define	LC_RESUME(s)
#define	LC_SET(s)   do { ({ __label__ resume; resume: (s) = &&resume; }); }while(0)

Typedefs
typedef void *	lc_t