BCOPY(P) POSIX Programmer's Manual BCOPY(P)
bcopy - memory operations (LEGACY)
void bcopy(const void *s1, void *s2, size_t n);
The bcopy() function shall copy n bytes from the area pointed to by s1 to the area pointed
to by s2.
The bytes are copied correctly even if the area pointed to by s1 overlaps the area pointed
to by s2.
The bcopy() function shall not return a value.
No errors are defined.
The following sections are informative.
The memmove() function is preferred over this function.
The following are approximately equivalent (note the order of the arguments):
bcopy(s1,s2,n) ~= memmove(s2,s1,n)
For maximum portability, it is recommended to replace the function call to bcopy() as fol-
#define bcopy(b1,b2,len) (memmove((b2), (b1), (len)), (void) 0)
This function may be withdrawn in a future version.
memmove() , the Base Definitions volume of IEEE Std 1003.1-2001, <strings.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std
1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System
Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and The Open Group
Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 BCOPY(P)