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authorMaxime Coste <frrrwww@gmail.com>2014-12-25 10:59:06 +0000
committerMaxime Coste <frrrwww@gmail.com>2014-12-25 10:59:06 +0000
commit33bde3e067fca26782fe48edfc90f34c12cf7e69 (patch)
tree5e83631beb23d1aad5b9e6a0e788a3bd4256bce5 /src
parent2e1c6eaff77f42c91ac57a1db2a700cb4fda9996 (diff)
Minor code tweak in optional.hh
Diffstat (limited to 'src')
-rw-r--r--src/optional.hh16
1 files changed, 6 insertions, 10 deletions
diff --git a/src/optional.hh b/src/optional.hh
index a0406f4f..60b42fad 100644
--- a/src/optional.hh
+++ b/src/optional.hh
@@ -20,7 +20,7 @@ public:
}
Optional(Optional&& other)
- noexcept(noexcept(new ((void*)0) T(std::move(other.m_value))))
+ noexcept(noexcept(new (nullptr) T(std::move(other.m_value))))
: m_valid(other.m_valid)
{
if (m_valid)
@@ -29,8 +29,7 @@ public:
Optional& operator=(const Optional& other)
{
- if (m_valid)
- m_value.~T();
+ destruct_ifn();
if ((m_valid = other.m_valid))
new (&m_value) T(other.m_value);
return *this;
@@ -38,18 +37,13 @@ public:
Optional& operator=(Optional&& other)
{
- if (m_valid)
- m_value.~T();
+ destruct_ifn();
if ((m_valid = other.m_valid))
new (&m_value) T(std::move(other.m_value));
return *this;
}
- ~Optional()
- {
- if (m_valid)
- m_value.~T();
- }
+ ~Optional() { destruct_ifn(); }
constexpr explicit operator bool() const noexcept { return m_valid; }
@@ -79,6 +73,8 @@ public:
const T* operator->() const { return const_cast<Optional&>(*this).operator->(); }
private:
+ void destruct_ifn() { if (m_valid) m_value.~T(); }
+
bool m_valid;
union { T m_value; };
};