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3ac22f82ed
The macro ALLOC_GROW manages several aspects of dynamic memory allocations for arrays: It performs overprovisioning in order to avoid reallocations in future calls, updates the allocation size variable, multiplies the item size and thus allows users to simply specify the item count, performs the reallocation and updates the array pointer. Sometimes this is too much. Add the macro REALLOC_ARRAY, which only takes care of the latter three points and allows users to specfiy the number of items the array can store. It can increase and also decrease the size. Using the macro avoid duplicating the variable name and takes care of the item sizes automatically. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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