Suyu/ext-boost
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/ext-boost.git synced 2025-12-24 16:24:42 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update to boost 1.66

Browse source
This commit is contained in:
MerryMage 2018-01-01 20:31:13 +00:00
parent 9ffbf897dc
commit d80e506e17
203 changed files with 14820 additions and 2478 deletions
Download patch file Download diff file Expand all files Collapse all files

38
boost/optional/detail/optional_aligned_storage.hpp
View file

@ -25,12 +25,8 @@ template <class T>
class aligned_storage
{
// Borland ICEs if unnamed unions are used for this!
union
// This works around GCC warnings about breaking strict aliasing rules when casting storage address to T*
#if defined(BOOST_OPTIONAL_DETAIL_USE_ATTRIBUTE_MAY_ALIAS)
__attribute__((__may_alias__))
#endif
dummy_u
// BOOST_MAY_ALIAS works around GCC warnings about breaking strict aliasing rules when casting storage address to T*
union BOOST_MAY_ALIAS dummy_u
{
char data[ sizeof(T) ];
BOOST_DEDUCED_TYPENAME type_with_alignment<
@ -48,24 +44,24 @@ class aligned_storage
#endif
#if defined(BOOST_OPTIONAL_DETAIL_USE_ATTRIBUTE_MAY_ALIAS)
// This workaround is supposed to silence GCC warnings about broken strict aliasing rules
T const* ptr_ref() const
{
union { void const* ap_pvoid; T const* as_ptype; } caster = { address() };
return caster.as_ptype;
}
T * ptr_ref()
{
union { void* ap_pvoid; T* as_ptype; } caster = { address() };
return caster.as_ptype;
}
// This workaround is supposed to silence GCC warnings about broken strict aliasing rules
T const* ptr_ref() const
{
union { void const* ap_pvoid; T const* as_ptype; } caster = { address() };
return caster.as_ptype;
}
T * ptr_ref()
{
union { void* ap_pvoid; T* as_ptype; } caster = { address() };
return caster.as_ptype;
}
#else
T const* ptr_ref() const { return static_cast<T const*>(address()); }
T * ptr_ref() { return static_cast<T *> (address()); }
T const* ptr_ref() const { return static_cast<T const*>(address()); }
T * ptr_ref() { return static_cast<T *> (address()); }
#endif
T const& ref() const { return *ptr_ref(); }
T & ref() { return *ptr_ref(); }
T const& ref() const { return *ptr_ref(); }
T & ref() { return *ptr_ref(); }
} ;