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dix: replace xallocarray() by calloc()

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Only key difference that calloc(), in contrast to rellocarray(),
is zero-initializing. The overhead is hard to measure on today's
machines, and it's safer programming practise to always allocate
zero-initialized, so one can't forget to do it explicitly.

Cocci rule:

    @@
    expression COUNT;
    expression LEN;
    @@
    - xallocarray(COUNT,LEN)
    + calloc(COUNT,LEN)

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult
2025-02-24 12:15:01 +01:00
parent e23e409597
commit ba4fb2588e
8 changed files with 29 additions and 29 deletions
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2
dix/dispatch.c
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@@ -1041,7 +1041,7 @@ ProcQueryTree(ClientPtr client)
if (numChildren) {
int curChild = 0;
childIDs = xallocarray(numChildren, sizeof(Window));
childIDs = calloc(numChildren, sizeof(Window));
if (!childIDs)
return BadAlloc;
for (pChild = pWin->lastChild; pChild != pHead;