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vim-patch:9.0.1271: using sizeof() and subtract array size is tricky (#22087)

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Problem:    Using sizeof() and subtract array size is tricky.
Solution:   Use offsetof() instead. (closes vim/vim#11926)

1b438a8228
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zeertzjq
2023-02-01 21:53:32 +08:00
committed by GitHub
parent a26c0ecab6
commit 4cc0d6b854
8 changed files with 10 additions and 9 deletions
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src/nvim/spellfile.c
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@@ -3855,7 +3855,7 @@ static void *getroom(spellinfo_T *spin, size_t len, bool align)
if (bl == NULL || (size_t)bl->sb_used + len > SBLOCKSIZE) {
// Allocate a block of memory. It is not freed until much later.
bl = xcalloc(1, (sizeof(sblock_T) + SBLOCKSIZE));
bl = xcalloc(1, offsetof(sblock_T, sb_data) + SBLOCKSIZE + 1);
bl->sb_next = spin->si_blocks;
spin->si_blocks = bl;
bl->sb_used = 0;