diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/gc/gc_mark.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/gc/gc_mark.h b/include/gc/gc_mark.h index 8291b1a4..ceba353d 100644 --- a/include/gc/gc_mark.h +++ b/include/gc/gc_mark.h @@ -125,10 +125,11 @@ typedef struct GC_ms_entry * (*GC_mark_proc)(GC_word * /* addr */, GC_API void * GC_least_plausible_heap_addr; GC_API void * GC_greatest_plausible_heap_addr; - /* Bounds on the heap. Guaranteed valid */ + /* Bounds on the heap. Guaranteed to be valid. */ /* Likely to include future heap expansion. */ /* Hence usually includes not-yet-mapped */ - /* memory. */ + /* memory. The address of any heap object is */ + /* less than GC_greatest_plausible_heap_addr. */ /* Handle nested references in a custom mark procedure. */ /* Check if obj is a valid object. If so, ensure that it is marked. */ @@ -155,8 +156,8 @@ GC_API struct GC_ms_entry * GC_CALL GC_mark_and_push(void * /* obj */, void ** /* src */); #define GC_MARK_AND_PUSH(obj, msp, lim, src) \ - ((GC_word)(obj) >= (GC_word)GC_least_plausible_heap_addr && \ - (GC_word)(obj) <= (GC_word)GC_greatest_plausible_heap_addr ? \ + ((GC_word)(obj) >= (GC_word)GC_least_plausible_heap_addr \ + && (GC_word)(obj) < (GC_word)GC_greatest_plausible_heap_addr ? \ GC_mark_and_push(obj, msp, lim, src) : (msp)) /* The size of the header added to objects allocated through the */ |