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Clarifying comment about extra queue element

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Richard Brooksby 2013-05-23 19:04:42 +01:00
parent fc4d239543
commit af707b5d97
1 changed files with 2 additions and 1 deletions
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3
mps/code/abq.c
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@ -37,7 +37,8 @@ Res ABQInit(Arena arena, ABQ abq, void *owner, Count elements, Size elementSize)
AVER(abq != NULL);
AVER(elements > 0);
/* Necessary in order to be able to distinguish "empty" from "full" */
/* Allocate a dummy extra element in order to be able to distinguish
"empty" from "full" */
elements = elements + 1;
res = ControlAlloc(&p, arena, ABQQueueSize(elements, elementSize),