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git-subtree-dir: contrib/libdiff git-subtree-mainline:f6d489f402git-subtree-split:9eb461aa4bReviewed by: imp Sponsored by: Klara, Inc.
14 lines
429 B
Text
14 lines
429 B
Text
void Chunk_copy(Chunk *src, size_t src_start, Chunk *dst, size_t dst_start, size_t n)
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{
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if (!Chunk_bounds_check(src, src_start, n)) return;
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if (!Chunk_bounds_check(dst, dst_start, n)) return;
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memcpy(dst->data + dst_start, src->data + src_start, n);
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}
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int Chunk_bounds_check(Chunk *chunk, size_t start, size_t n)
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{
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if (chunk == NULL) return 0;
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return start <= chunk->length && n <= chunk->length - start;
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}
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