I agree that mt_rand() should warn before delivering bogus outputs. But
when it works, it works ok:
https://gist.github.com/tom--/a12175047578b3ae9ef8
Given that it hasn't been MT19937 or many years, it probably doesn't
need to be.
If there is really a need for fast repeatable RNGs (the kind popular in
monte-carlo sims) then MT is no longer the most likely candidate. A new
API could allow the user to select a generator -- there are a lot to
chose from (see below)!
Tom
These are the built-in generators in dieharder 3.31.1. Note the xorshift
family isn't present. Melissa O’'Neill's new PCG family is interesting too.
000 borosh13
001 cmrg
002 coveyou
003 fishman18
004 fishman20
005 fishman2x
006 gfsr4
007 knuthran
008 knuthran2
009 knuthran2002
010 lecuyer21
011 minstd
012 mrg
013 mt19937
014 mt19937_1999
015 mt19937_1998
016 r250
017 ran0
018 ran1
019 ran2
020 ran3
021 rand
022 rand48
023 random128-bsd
024 random128-glibc2
025 random128-libc5
026 random256-bsd
027 random256-glibc2
028 random256-libc5
029 random32-bsd
030 random32-glibc2
031 random32-libc5
032 random64-bsd
033 random64-glibc2
034 random64-libc5
035 random8-bsd
036 random8-glibc2
037 random8-libc5
038 random-bsd
039 random-glibc2
040 random-libc5
041 randu
042 ranf
043 ranlux
044 ranlux389
045 ranlxd1
046 ranlxd2
047 ranlxs0
048 ranlxs1
049 ranlxs2
050 ranmar
051 slatec
052 taus
053 taus2
054 taus113
055 transputer
056 tt800
057 uni
058 uni32
059 vax
060 waterman14
061 zuf
203 ca
204 uvag
205 AES_OFB
206 Threefish_OFB
207 XOR (supergenerator)
208 kiss
209 superkiss
400 R_wichmann_hill
401 R_marsaglia_multic.
402 R_super_duper
403 R_mersenne_twister
404 R_knuth_taocp
405 R_knuth_taocp2
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