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allow/raw/linear: add typed offset query

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This commit is contained in:
Danny Robson 2018-05-18 16:51:42 +10:00
parent b7a4b8d1c0
commit 7d315c8095
1 changed files with 10 additions and 0 deletions
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10
alloc/raw/linear.hpp
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@ -82,6 +82,16 @@ namespace util::alloc::raw {
size_t offset (const void*) const; size_t offset (const void*) const;
template <typename ValueT>
size_t
offset (ValueT const *ptr) const
{
CHECK_MOD (reinterpret_cast<uintptr_t> (ptr), sizeof (ValueT));
CHECK_MOD (reinterpret_cast<uintptr_t> (data ()), sizeof (ValueT));
return ptr - util::cast::alignment<ValueT const*> (data ());
}
template <typename T> template <typename T>
size_t size_t
offset (util::view<T*> ptr) const offset (util::view<T*> ptr) const