array_reverse: fix unsigned overflow

srdja / Collections-C

A library of generic data structures for the C language.

http://srdja.github.io/Collections-C

GNU Lesser General Public License v3.0

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array_reverse: fix unsigned overflow #128

Closed ZirconXi closed 4 years ago

ZirconXi commented 4 years ago

This fixes a bug in the array reverse function. when the array is empty, ar->size - 1 will overflow. This situation causes the array to be out of bounds.