* Zeroing memory.
* After use, sensitive data should be overwritten, but memset() and hand-written code can be
* silently stripped out by an optimizing compiler or by the linker.
* The sodium_memzero() function tries to effectively zero len bytes starting at pnt , even if
* optimizations are being applied to the code.
* Zeroing memory. * After use, sensitive data should be overwritten, but memset() and hand-written code can be * silently stripped out by an optimizing compiler or by the linker. * The sodium_memzero() function tries to effectively zero len bytes starting at pnt , even if * optimizations are being applied to the code.