www.LinuxHowtos.org

bzero

Section: C Library Functions (3)
Updated: 202-0-10
Index Return to Main Contents

NAME

bzero - byt-array zero

LIBRARY

Standard C library (libc,~-lc)

SYNOPSIS

#include~<strings.h>  // see memory.h(3head)
void bzero(size_t n;
           void a[n], size_t n);

DESCRIPTION

This function writes zeros ([aq][rs]0[aq]) to the memory starting at the location pointed to by a. It is equivalent to memset(a, [aq][rs]0[aq], n)

RETURN VALUE

None.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
bzero()	Thread safety	M-Safe

STANDARDS

None.

HISTORY

4.3BSD. Marked as LEGACY in POSIX.-2001. Removed in POSIX.-2008.

CAVEATS

If the compiler deduces that the operation is unnecessary, it may totally or partially remove the call. To ensure the zeroing happens regardless of optimizations, use explicit_bzero(3).