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ab4745dcb2
* libc/include/stdlib.h: Add declarations of rand48 functions and
their reentrant versions.
* libc/include/sys/reent.h: Move macros from rand48.h. Add
struct _rand48 for shared parameters of rand48 functions.
(struct _reent): Add a variable _r48 of struct _rand48.
(_REENT_INIT): Add _r48 initialization.
* libc/stdlib/Makefile.am (lib_a_SOURCES): Add rand48 functions.
(CHEWOUT_FILES): Add rand48.def.
* libc/stdlib/Makefile.am: Add dependencies for rand48 functions.
* libc/stdlib/Makefile.in: Regenerated.
* libc/stdlib/drand48.c (drand48, _drand48_r): Derived from the
NetBSD C library.
* libc/stdlib/erand48.c (erand48, _erand48_r): Ditto.
* libc/stdlib/jrand48.c (jrand48, _jrand48_r): Ditto.
* libc/stdlib/lcong48.c (lcong48, _lcong48_r): Ditto.
* libc/stdlib/lrand48.c (lrand48, _lrand48_r): Ditto.
* libc/stdlib/mrand48.c (mrand48, _mrand48_r): Ditto.
* libc/stdlib/nrand48.c (nrand48, _nrand48_r): Ditto.
* libc/stdlib/seed48.c (seed48, _seed48_r): Ditto.
* libc/stdlib/srand48.c (srand48, _srand48_r): Ditto.
* libc/stdlib/rand48.c (__dorand48): Ditto.
* libc/stdlib/rand48.h: Ditto, and modify declarations of global
parameters into macros referring them in the reentrant structure.
35 lines
855 B
C
35 lines
855 B
C
/*
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* Copyright (c) 1993 Martin Birgmeier
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* All rights reserved.
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*
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* You may redistribute unmodified or modified versions of this source
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* code provided that the above copyright notice and this and the
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* following conditions are retained.
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*
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* This software is provided ``as is'', and comes with no warranties
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* of any kind. I shall in no event be liable for anything that happens
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* to anyone/anything when using this software.
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*/
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#include "rand48.h"
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double
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_DEFUN (_erand48_r, (r, xseed),
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struct _reent *r _AND
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unsigned short xseed[3])
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{
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__dorand48(r, xseed);
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return ldexp((double) xseed[0], -48) +
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ldexp((double) xseed[1], -32) +
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ldexp((double) xseed[2], -16);
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}
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#ifndef _REENT_ONLY
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double
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_DEFUN (erand48, (xseed),
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unsigned short xseed[3])
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{
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return _erand48_r (_REENT, xseed);
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}
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#endif /* !_REENT_ONLY */
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