[valgrind] [Bug 433859] Add mismatched detection to C++ 17 aligned new/delete

[Paul Floyd]

https://bugs.kde.org/show_bug.cgi?id=433859

--- Comment #5 from Paul Floyd <pjfl...@wanadoo.fr> ---
    MyClass* myClass = (MyClass *)operator new(sizeof(MyClass),
std::align_val_t(67U));

with libstdc++

  >   122    if (__builtin_expect (!std::__has_single_bit(align), false))     │
│      123      _GLIBCXX_THROW_OR_ABORT(bad_alloc());

gives

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Program received signal SIGABRT, Aborted.

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