src-test2/games/random, branch release/8.4.0

MFC r241847:

2012-10-25T03:27:53Z

Free buf when its no longer used. This helps eliminate a static analysis warning. PR: ports/172566 Approved by: cperciva (implicit)

Suggections from bde@

2008-08-11T23:24:42Z

1) Split too long source lines 2) Portable code should not assume that null pointer == all-bits-0, so back out prev. calloc() change. Submitted by: bde

All cosmetic.

2008-08-10T11:31:56Z

1) Rename RANDOM_MAX to RANDOM_MAX_PLUS1 to not confuse with random()'s max 2) Use calloc() instead of zeroing fields explicitly 3) "too many lines" -> "too many delimiters" for err()

1) Fix longstanding math bug with denominator > 1 (wrong probability).

2008-08-08T02:46:47Z

Test case: random -f some_small_file 10000 (in most cases must be no output) 2) Prevent number of lines > RANDOM_MAX (overflow or nothing may be choosed) with EFBIG err() 3) After line is found, terminate list loop for -U case too, since nothing to do in the rest of the loop left.

I was confused a bit by the wrong construction with RAND_MAX

2008-08-08T01:42:17Z

used in randomize_fd.c. Although the max value is the same currently, RAND_MAX is for rand(), not for random(). So move RANDOM_MAX const to the common file now, make it UL and use in randomize_fd.c too. (in any case its old value was 1 less then must be, as noted in the prev. commit)

1) Replace hardcoded RANDOM_MAX macro with wrong (1 less than must be)

2008-08-08T01:02:30Z

value with ((double)RAND_MAX + 1) 2) For exit code increase valid denominator upper range from 255 to 256 since returned value is [0 .. denom - 1]

1) Fix hang at the end of line buffer (PR 95715)

2006-04-14T17:32:27Z

2) Localize PR: 95715 Submitted by: Li-Lun Wang (slightly edited by me)

Correct an error in the previous revision. RAND_MAX is the maximum value

2005-06-22T15:24:00Z

for rand(3), not random(3). random(3) is defined to return values between 0 and 2^31-1, so add a local RANDOM_MAX constant to this file that is defined as 2^31-1 and use that in place of RAND_MAX. Reviewed by: bde Approved by: re (dwhite) MFC after: 1 week

Fix for 64-bit platforms. random() returns values between 0 and RAND_MAX,

2005-05-27T15:29:01Z

and RAND_MAX != LONG_MAX on 64-bit platforms. PR: amd64/81279 Submitted by: Vivek Khera vivek at khera dot org Submitted by: Adriaan de Groot groot at kde dot org MFC after: 1 week

Sync program's usage() with manpage's SYNOPSIS.

2005-02-09T18:22:15Z