03-28-2019
Further, doing things you didn't ask the compiler to do is begging for trouble. The compiler loves to remove things you "don't use", to the point that if you never touch a variable in your program, it might optimize it away completely and use hardcoded values instead. You have to make these variables 'volatile' to force the compiler to not do anything smart and helpful for you.
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LEARN ABOUT LINUX
explicit_bzero
BZERO(3) Linux Programmer's Manual BZERO(3)
NAME
bzero, explicit_bzero - zero a byte string
SYNOPSIS
#include <strings.h>
void bzero(void *s, size_t n);
#include <string.h>
void explicit_bzero(void *s, size_t n);
DESCRIPTION
The bzero() function erases the data in the n bytes of the memory starting at the location pointed to by s, by writing zeros (bytes con-
taining '