alignment_cast.h

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/* Copyright (C) 2016 Olly Betts
 *
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#ifndef XAPIAN_INCLUDED_ALIGNMENT_CAST_H
#define XAPIAN_INCLUDED_ALIGNMENT_CAST_H
 
#include <type_traits>
 
template<typename T, typename U>
typename std::enable_if_t<std::is_const_v<typename std::remove_pointer_t<U>>, T>
alignment_cast(U ptr)
{
    return static_cast<T>(static_cast<const void*>(ptr));
}
 
template<typename T, typename U>
typename std::enable_if_t<!std::is_const_v<typename std::remove_pointer_t<U>>, T>
alignment_cast(U ptr)
{
    return static_cast<T>(static_cast<void*>(ptr));
}
 
#endif /* XAPIAN_INCLUDED_ALIGNMENT_CAST_H */