diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/stc/algo/coroutine.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/stc/algo/coroutine.h b/include/stc/algo/coroutine.h index b92507b8..727ce2a8 100644 --- a/include/stc/algo/coroutine.h +++ b/include/stc/algo/coroutine.h @@ -66,6 +66,11 @@ enum { #define cco_initial(co) ((co)->cco_state == 0) #define cco_done(co) ((co)->cco_state == cco_state_done) +/* Always use { } after cco_switch(x), cco_case(val), and cco_default. */ +#define cco_switch(x) for (intmax_t _sw = (intmax_t)(x), _once=1; _once; _once=0) +#define cco_case(val) if (_sw == (intmax_t)(val)) +#define cco_default else + #define cco_routine(co) \ for (int *_state = &(co)->cco_state; *_state != cco_state_done; *_state = cco_state_done) \ _resume: switch (*_state) case 0: // thanks, @liigo! |