On Sat, 7 May 2011, Garrett Cooper wrote:
On Sat, May 7, 2011 at 10:13 AM, <m...@freebsd.org> wrote:
On Sat, May 7, 2011 at 9:36 AM, Hans Petter Selasky <hsela...@c2i.net> wrote:
On Saturday 07 May 2011 18:28:24 Hans Petter Selasky wrote:
? - Use memcpy() instead of bcopy().
- Use memset() instead of bzero().
Why? ?It usually falls through to the same code in libc. ?Is there
some standardization on memfoo versus bfoo here?
As part of adding lots of style bugs I suppose.
bfoo is marked legacy per POSIX 2001.1; example:
http://pubs.opengroup.org/onlinepubs/009695399/functions/bcopy.html .
bfoo was correctly left out of POSIX.1-1988. However, POSIX.1-2001 brought
back lots of historical cruft 13 years after POSIX.1-1988 deprecated it by
not having it at all. However2, the bcopy family is not historical cruft
in BSD.
A lot of folks (Linux leading the charge) are actively working to
deprecate the APIs.
Another reason to not deprecate it in BSD :-).
bzero() is technically better than memset() since it doesn't waste
space or time for an extra arg. bcmp() is technically better than
memcmp() for the usual case where you only want a binary result. The
other bcopy functions are just different spellings of the newer
interfaces.
Bruce
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