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NFC: pointer_offset* functions always return void*

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This requires that the caller perform the cast on the output rather than the
input, which is a little closer to the truth.  Shuffle some casts into the right
position.
This commit is contained in:
Nathaniel Filardo
2021-03-02 20:45:51 +00:00
committed by Matthew Parkinson
parent f295a3f191
commit cbab7a3455
5 changed files with 14 additions and 15 deletions
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12
src/ds/address.h
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@@ -18,19 +18,19 @@ namespace snmalloc
/**
* Perform pointer arithmetic and return the adjusted pointer.
*/
template<typename T>
inline T* pointer_offset(T* base, size_t diff)
template<typename U = void, typename T>
inline U* pointer_offset(T* base, size_t diff)
{
return reinterpret_cast<T*>(reinterpret_cast<char*>(base) + diff);
return reinterpret_cast<U*>(reinterpret_cast<char*>(base) + diff);
}
/**
* Perform pointer arithmetic and return the adjusted pointer.
*/
template<typename T>
inline T* pointer_offset_signed(T* base, ptrdiff_t diff)
template<typename U = void, typename T>
inline U* pointer_offset_signed(T* base, ptrdiff_t diff)
{
return reinterpret_cast<T*>(reinterpret_cast<char*>(base) + diff);
return reinterpret_cast<U*>(reinterpret_cast<char*>(base) + diff);
}
/**