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fix description of $RANDOM, which is not limited to 15 bit any more

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as a device to determine whether arc4random(3) is in effect or not.
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tg 2006-09-13 16:14:29 +00:00
parent aeb7922065
commit f2eafb3044
1 changed files with 11 additions and 15 deletions
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mksh.1
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@ -1,8 +1,7 @@
.\" $MirOS: src/bin/mksh/mksh.1,v 1.58 2006/08/28 03:31:01 tg Exp $
.\" $MirOS: src/bin/mksh/mksh.1,v 1.59 2006/09/13 16:14:29 tg Exp $
.\" $OpenBSD: ksh.1,v 1.116 2006/07/26 10:13:25 jmc Exp $
.\" $OpenBSD: sh.1tbl,v 1.53 2004/12/10 01:56:56 jaredy Exp $
.\"
.Dd August 28, 2006
.Dd September 13, 2006
.Dt MKSH 1
.Os MirBSD
.Sh NAME
@ -1546,23 +1545,20 @@ May be unset or
.Dv NULL
if the shell doesn't know where it is.
.It Ev RANDOM
A pseudo-random number generator.
Every time
.Ev RANDOM
is referenced, it is assigned the next random number in the range
0\-32767.
By default,
is referenced, it is assigned a pseudo-random number first.
By default, if available,
.Xr arc4random 3
is used to produce values.
If the variable
is used to produce unsigned 31\-bit values (0\-2147483647)
whose quality depends on the operating environment.
If
.Ev RANDOM
is assigned a value, the value is used as the seed to
is assigned a value, it is used as the seed to
.Xr srand 3
and subsequent references of
.Ev RANDOM
will use
.Xr rand 3
to produce values, resulting in a predictable sequence.
and subsequent references yield a semi-predictable sequence
of unsigned 15\-bit results (0\-32767) employing
.Xr rand 3 .
.It Ev REPLY
Default parameter for the
.Ic read