The C interface for aligned memory allocation is aligned_alloc(). The returned pointers are always freed with free(). So what is probably happening is that alig

The C interface for aligned memory allocation is aligned_alloc(). The returned pointers are always freed with free(). So what is probably happening is that aligned new calls aligned_alloc(), and then aligned delete simply calls the regular delete, expecting to end up in free(), which by design should work with both kinds of pointers. I think the problem here is partly with the implementation of aligned new/delete. Since one is free to override only the old versions, the ones supplied by the standard library should make sure not to fall back to functions that may be partially overriden.