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base: fix _sum_in_range in avl structure

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Handles corner case when addr + size becomes exactly 0. Before the commit
the function returned that sum is not part of the range, which is wrong.

Issue #3111
This commit is contained in:
Alexander Boettcher 2019-04-04 14:17:36 +02:00 committed by Christian Helmuth
parent 812149ed29
commit d1f37e66eb
1 changed files with 1 additions and 1 deletions
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repos/base/include/base/allocator_avl.h
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@ -48,7 +48,7 @@ class Genode::Allocator_avl_base : public Range_allocator
private: private:
static bool _sum_in_range(addr_t addr, addr_t offset) { static bool _sum_in_range(addr_t addr, addr_t offset) {
return (~0UL - addr > offset); } return (addr + offset - 1) >= addr; }
/* /*
* Noncopyable * Noncopyable