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xrealloc_vector_helper((vector), (sizeof((vector)[0]) << 8) + (shift), (idx))
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void* xrealloc_vector_helper(void *vector, unsigned sizeof_and_shift, int idx) FAST_FUNC;
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char *xstrdup(const char *s) FAST_FUNC RETURNS_MALLOC;
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void *mmap_read(int fd, size_t size) FAST_FUNC;
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435
void *mmap_anon(size_t size) FAST_FUNC;
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436
void *xmmap_anon(size_t size) FAST_FUNC;