https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77330
--- Comment #14 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Wed, 24 Aug 2016, bernd.edlinger at hotmail dot de wrote: > glibc's malloc returns 128-bit aligned on x86-64-linux-gnu. > but what does it return on windows? glibc does not support Windows. I've no idea what Windows malloc returns (and it could always depend on which C library version is used; there are several that MinGW can be made to use).