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A common mistake when writing binary search is to allow possible integer overflow by using the simple average: mid = (min + max) / 2; Instead, use the overflow-safe version: mid = min + (max - min) / 2; This translation is safe since the operation occurs inside a loop conditioned on "min < max". The included changes were found using the following git grep: git grep '/ *2;' '*.c' Making this cleanup will prevent future review friction when a new binary search is contructed based on existing code. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> |
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xdiff.h | ||
xdiffi.c | ||
xdiffi.h | ||
xemit.c | ||
xemit.h | ||
xhistogram.c | ||
xinclude.h | ||
xmacros.h | ||
xmerge.c | ||
xpatience.c | ||
xprepare.c | ||
xprepare.h | ||
xtypes.h | ||
xutils.c | ||
xutils.h |