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RefPtr: Add some more noexcept specifications

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This commit is contained in:
Maxime Coste 2018-02-25 00:20:10 +11:00
parent 67424aae1e
commit 6453ce7394
1 changed files with 3 additions and 2 deletions
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5
src/ref_ptr.hh
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@ -22,7 +22,7 @@ struct RefCountable
struct RefCountablePolicy struct RefCountablePolicy
{ {
static void inc_ref(RefCountable* r, void*) noexcept { ++r->refcount; } static void inc_ref(RefCountable* r, void*) noexcept { ++r->refcount; }
static void dec_ref(RefCountable* r, void*) { if (--r->refcount == 0) delete r; } static void dec_ref(RefCountable* r, void*) noexcept(noexcept(r->~RefCountable())) { if (--r->refcount == 0) delete r; }
static void ptr_moved(RefCountable*, void*, void*) noexcept {} static void ptr_moved(RefCountable*, void*, void*) noexcept {}
}; };
@ -31,7 +31,7 @@ struct RefPtr
{ {
RefPtr() = default; RefPtr() = default;
explicit RefPtr(T* ptr) : m_ptr(ptr) { acquire(); } explicit RefPtr(T* ptr) : m_ptr(ptr) { acquire(); }
~RefPtr() { release(); } ~RefPtr() noexcept(noexcept(std::declval<RefPtr>().release())) { release(); }
RefPtr(const RefPtr& other) : m_ptr(other.m_ptr) { acquire(); } RefPtr(const RefPtr& other) : m_ptr(other.m_ptr) { acquire(); }
RefPtr(RefPtr&& other) RefPtr(RefPtr&& other)
noexcept(noexcept(std::declval<RefPtr>().moved(nullptr))) noexcept(noexcept(std::declval<RefPtr>().moved(nullptr)))
@ -103,6 +103,7 @@ private:
[[gnu::always_inline]] [[gnu::always_inline]]
void release() void release()
noexcept(noexcept(Policy::dec_ref(nullptr, nullptr)))
{ {
if (m_ptr) if (m_ptr)
Policy::dec_ref(m_ptr, this); Policy::dec_ref(m_ptr, this);