http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57350
--- Comment #9 from David Krauss <potswa at mac dot com> ---
Whoa, there's a nasty bug there, if alignment > space.
inline void *align( std::size_t alignment, std::size_t size,
void *&ptr, std::size_t &space ) {
std::uintptr_t pn = reinterpret_cast< std::uintptr_t >( ptr );
std::uintptr_t aligned = ( pn + alignment - 1 ) & - alignment;
size += aligned - pn; // Add padding to size.
if ( space < size ) return nullptr;
space -= size;
return ptr = reinterpret_cast< void * >( aligned );
}
I haven't tested this edit at all.
