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git-compat-util: introduce MEMZERO_ARRAY() macro

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Introduce a new macro MEMZERO_ARRAY() that zeroes the memory allocated
by ALLOC_ARRAY() and friends. And add coccinelle rule to enforce the use
of this macro.

Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Toon Claes
2025-12-10 14:13:01 +01:00
committed by Junio C Hamano
parent af0ed97e10
commit a67b902c94
8 changed files with 29 additions and 9 deletions
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7
ewah/bitmap.c
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@@ -46,8 +46,7 @@ static void bitmap_grow(struct bitmap *self, size_t word_alloc)
{
size_t old_size = self->word_alloc;
ALLOC_GROW(self->words, word_alloc, self->word_alloc);
memset(self->words + old_size, 0x0,
(self->word_alloc - old_size) * sizeof(eword_t));
MEMZERO_ARRAY(self->words + old_size, (self->word_alloc - old_size));
}
void bitmap_set(struct bitmap *self, size_t pos)
@@ -192,8 +191,8 @@ void bitmap_or_ewah(struct bitmap *self, struct ewah_bitmap *other)
if (self->word_alloc < other_final) {
self->word_alloc = other_final;
REALLOC_ARRAY(self->words, self->word_alloc);
memset(self->words + original_size, 0x0,
(self->word_alloc - original_size) * sizeof(eword_t));
MEMZERO_ARRAY(self->words + original_size,
(self->word_alloc - original_size));
}
ewah_iterator_init(&it, other);