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[avr-libc-dev] rand(3) in avr-libc
From: |
Joerg Wunsch |
Subject: |
[avr-libc-dev] rand(3) in avr-libc |
Date: |
Mon, 9 Sep 2002 16:13:55 +0200 |
User-agent: |
Mutt/1.2.5i |
Hi all,
after looking at FreeBSD's rand.c implementation, i noticed that
avr-libc already has one, apparently taken from FreeBSD's revision
1.2. This file has an implementation for thread support (rand_r())
which we IMHO don't need, while it doesn't use the improved algorithm
that is used in random(3), as implemented in FreeBSD's rev 1.3 (which
is much preferrable, as i understand it).
Also, RAND_MAX was set to 0x7fffffff, but the return type is only int
(which is unfortunately mandated by the ISO C standard). This doesn't
fit very well...
Finally, only RAND_MAX was really in <stdlib.h> by now, while rand()
and srand() aren't documented.
I'll append a diff for the improved version minus support for
rand_r(), plus the documentation.
Opinions anyone? Should i keep rand_r() support?
--
J"org Wunsch Unix support engineer
address@hidden http://www.interface-systems.de/~j/
libc-rand.diff
Description: Text document
- [avr-libc-dev] rand(3) in avr-libc,
Joerg Wunsch <=
- Re: [avr-libc-dev] rand(3) in avr-libc, Joerg Wunsch, 2002/09/09
- Re: [avr-libc-dev] rand(3) in avr-libc, Theodore A. Roth, 2002/09/09
- Re: [avr-libc-dev] rand(3) in avr-libc, Joerg Wunsch, 2002/09/09
- Re: [avr-libc-dev] rand(3) in avr-libc, Joerg Wunsch, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, Joerg Wunsch, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, E. Weddington, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, Joerg Wunsch, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, Theodore A. Roth, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, E. Weddington, 2002/09/10
- Re: [avr-libc-dev] rand(3) in avr-libc, Theodore A. Roth, 2002/09/10