This is the module implementing the *rand48* functions, rebased to the
current head.
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
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>From 2bded933578bf7bed693ba868dc538e53e97555d Mon Sep 17 00:00:00 2001
From: Richard Jones <[EMAIL PROTECTED]>
Date: Thu, 23 Oct 2008 18:28:45 +0100
Subject: [PATCH] New module rand48.
---
lib/rand48.c | 675 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
lib/stdlib.in.h | 126 +++++++++++
m4/rand48.m4 | 21 ++
m4/stdlib_h.m4 | 2 +
modules/rand48 | 24 ++
modules/stdlib | 2 +
6 files changed, 850 insertions(+), 0 deletions(-)
create mode 100644 lib/rand48.c
create mode 100644 m4/rand48.m4
create mode 100644 modules/rand48
diff --git a/lib/rand48.c b/lib/rand48.c
new file mode 100644
index 0000000..5a4caf9
--- /dev/null
+++ b/lib/rand48.c
@@ -0,0 +1,675 @@
+/* Copyright (C) 1995, 1996, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <math.h>
+#include <limits.h>
+
+/* Global state for non-reentrant functions. */
+struct drand48_data __drand48_data;
+
+int
+__drand48_iterate (xsubi, buffer)
+ unsigned short int xsubi[3];
+ struct drand48_data *buffer;
+{
+ uint64_t X;
+ uint64_t result;
+
+ /* Initialize buffer, if not yet done. */
+ if (buffer->__init == 0)
+ {
+ buffer->__a = 0x5deece66dull;
+ buffer->__c = 0xb;
+ buffer->__init = 1;
+ }
+
+ /* Do the real work. We choose a data type which contains at least
+ 48 bits. Because we compute the modulus it does not care how
+ many bits really are computed. */
+
+ X = (uint64_t) xsubi[2] << 32 | (uint32_t) xsubi[1] << 16 | xsubi[0];
+
+ result = X * buffer->__a + buffer->__c;
+
+ xsubi[0] = result & 0xffff;
+ xsubi[1] = (result >> 16) & 0xffff;
+ xsubi[2] = (result >> 32) & 0xffff;
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995,1996,1997,1998,2001,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+double
+drand48 ()
+{
+ double result;
+
+ (void) erand48_r (__drand48_data.__x, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+drand48_r (buffer, result)
+ struct drand48_data *buffer;
+ double *result;
+{
+ return erand48_r (buffer->__x, buffer, result);
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+double
+erand48 (xsubi)
+ unsigned short int xsubi[3];
+{
+ double result;
+
+ (void) erand48_r (xsubi, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995, 1997, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifdef HAVE_IEEE754_H
+# include <ieee754.h>
+#else
+# if defined(__i386__)
+
+#define IEEE754_DOUBLE_BIAS 0x3ff
+
+union ieee754_double
+{
+ double d;
+
+ /* This is only correct on i386 & x86-64 systems. */
+ struct
+ {
+ unsigned int mantissa1:32;
+ unsigned int mantissa0:20;
+ unsigned int exponent:11;
+ unsigned int negative:1;
+ } ieee;
+};
+# endif /* __i386__ */
+#endif /* !HAVE_IEEE754_H */
+
+int
+erand48_r (xsubi, buffer, result)
+ unsigned short int xsubi[3];
+ struct drand48_data *buffer;
+ double *result;
+{
+ union ieee754_double temp;
+
+ /* Compute next state. */
+ if (__drand48_iterate (xsubi, buffer) < 0)
+ return -1;
+
+ /* Construct a positive double with the 48 random bits distributed over
+ its fractional part so the resulting FP number is [0.0,1.0). */
+
+ temp.ieee.negative = 0;
+ temp.ieee.exponent = IEEE754_DOUBLE_BIAS;
+ temp.ieee.mantissa0 = (xsubi[2] << 4) | (xsubi[1] >> 12);
+ temp.ieee.mantissa1 = ((xsubi[1] & 0xfff) << 20) | (xsubi[0] << 4);
+
+ /* Please note the lower 4 bits of mantissa1 are always 0. */
+ *result = temp.d - 1.0;
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+long int
+jrand48 (xsubi)
+ unsigned short int xsubi[3];
+{
+ long int result;
+
+ (void) jrand48_r (xsubi, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995, 1997, 1998, 2001, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+jrand48_r (xsubi, buffer, result)
+ unsigned short int xsubi[3];
+ struct drand48_data *buffer;
+ long int *result;
+{
+ /* Compute next state. */
+ if (__drand48_iterate (xsubi, buffer) < 0)
+ return -1;
+
+ /* Store the result. */
+ *result = (int32_t) ((xsubi[2] << 16) | xsubi[1]);
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+void
+lcong48 (param)
+ unsigned short int param[7];
+{
+ (void) lcong48_r (param, &__drand48_data);
+}
+
+
+/* Copyright (C) 1995, 1997, 1998, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+lcong48_r (param, buffer)
+ unsigned short int param[7];
+ struct drand48_data *buffer;
+{
+ /* Store the given values. */
+ memcpy (buffer->__x, ¶m[0], sizeof (buffer->__x));
+ buffer->__a = ((uint64_t) param[5] << 32 | (uint32_t) param[4] << 16
+ | param[3]);
+ buffer->__c = param[6];
+ buffer->__init = 1;
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995,1996,1997,1998,2001,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+long int
+lrand48 ()
+{
+ long int result;
+
+ (void) nrand48_r (__drand48_data.__x, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995,97,98,2001,02 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+lrand48_r (buffer, result)
+ struct drand48_data *buffer;
+ long int *result;
+{
+ /* Be generous for the arguments, detect some errors. */
+ if (buffer == NULL)
+ return -1;
+
+ return nrand48_r (buffer->__x, buffer, result);
+}
+
+
+/* Copyright (C) 1995,1996,1997,1998,2001,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+long int
+mrand48 ()
+{
+ long int result;
+
+ (void) jrand48_r (__drand48_data.__x, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995, 1997, 1998, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+mrand48_r (buffer, result)
+ struct drand48_data *buffer;
+ long int *result;
+{
+ /* Be generous for the arguments, detect some errors. */
+ if (buffer == NULL)
+ return -1;
+
+ return jrand48_r (buffer->__x, buffer, result);
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+long int
+nrand48 (xsubi)
+ unsigned short int xsubi[3];
+{
+ long int result;
+
+ (void) nrand48_r (xsubi, &__drand48_data, &result);
+
+ return result;
+}
+
+
+/* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+nrand48_r (xsubi, buffer, result)
+ unsigned short int xsubi[3];
+ struct drand48_data *buffer;
+ long int *result;
+{
+ /* Compute next state. */
+ if (__drand48_iterate (xsubi, buffer) < 0)
+ return -1;
+
+ /* Store the result. */
+ if (sizeof (unsigned short int) == 2)
+ *result = xsubi[2] << 15 | xsubi[1] >> 1;
+ else
+ *result = xsubi[2] >> 1;
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995,1996,1997,1998,2001,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+unsigned short int *
+seed48 (seed16v)
+ unsigned short int seed16v[3];
+{
+ (void) seed48_r (seed16v, &__drand48_data);
+
+ return __drand48_data.__old_x;
+}
+
+
+/* Copyright (C) 1995, 1997, 1998, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+seed48_r (seed16v, buffer)
+ unsigned short int seed16v[3];
+ struct drand48_data *buffer;
+{
+ /* Save old value at a private place to be used as return value. */
+ memcpy (buffer->__old_x, buffer->__x, sizeof (buffer->__x));
+
+ /* Install new state. */
+ buffer->__x[2] = seed16v[2];
+ buffer->__x[1] = seed16v[1];
+ buffer->__x[0] = seed16v[0];
+ buffer->__a = 0x5deece66dull;
+ buffer->__c = 0xb;
+ buffer->__init = 1;
+
+ return 0;
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+void
+srand48 (seedval)
+ long seedval;
+{
+ (void) srand48_r (seedval, &__drand48_data);
+}
+
+
+/* Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <[EMAIL PROTECTED]>, August 1995.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+int
+srand48_r (seedval, buffer)
+ long int seedval;
+ struct drand48_data *buffer;
+{
+ /* The standards say we only have 32 bits. */
+ if (sizeof (long int) > 4)
+ seedval &= 0xffffffffl;
+
+ buffer->__x[2] = seedval >> 16;
+ buffer->__x[1] = seedval & 0xffffl;
+ buffer->__x[0] = 0x330e;
+
+ buffer->__a = 0x5deece66dull;
+ buffer->__c = 0xb;
+ buffer->__init = 1;
+
+ return 0;
+}
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index f6ebe25..c813c12 100644
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -234,6 +234,132 @@ extern int putenv (char *string);
#endif
+#if @GNULIB_RAND48@
+# if [EMAIL PROTECTED]@
+
+struct drand48_data
+ {
+ unsigned short int __x[3]; /* Current state. */
+ unsigned short int __old_x[3]; /* Old state. */
+ unsigned short int __c; /* Additive const. in congruential formula. */
+ unsigned short int __init; /* Flag for initializing. */
+ unsigned long long int __a; /* Factor in congruential formula. */
+ };
+
+double drand48 (void);
+int drand48_r (struct drand48_data *buffer, double *result);
+double erand48 ( unsigned short int xsubi[3]);
+int erand48_r (unsigned short int xsubi[3], struct drand48_data *buffer,
double *result);
+long int jrand48 (unsigned short int xsubi[3]);
+int jrand48_r (unsigned short int xsubi[3], struct drand48_data *buffer, long
int *result);
+void lcong48 (unsigned short int param[7]);
+int lcong48_r (unsigned short int param[7], struct drand48_data *buffer);
+long int lrand48 ();
+int lrand48_r (struct drand48_data *buffer, long int *result);
+long int mrand48 ();
+int mrand48_r (struct drand48_data *buffer, long int *result);
+long int nrand48 (unsigned short int xsubi[3]);
+int nrand48_r (unsigned short int xsubi[3], struct drand48_data *buffer, long
int *result);
+unsigned short int *seed48 (unsigned short int seed16v[3]);
+int seed48_r (unsigned short int seed16v[3], struct drand48_data *buffer);
+void srand48 (long seedval);
+int srand48_r (long int seedval, struct drand48_data *buffer);
+
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef drand48
+# define drand48() \
+ (GL_LINK_WARNING ("drand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ drand48 ())
+# undef drand48_r
+# define drand48_r(b,r) \
+ (GL_LINK_WARNING ("drand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ drand48_r (b,r))
+# undef erand48
+# define erand48(a) \
+ (GL_LINK_WARNING ("erand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ erand48 (a))
+# undef erand48_r
+# define erand48_r(a,b,r) \
+ (GL_LINK_WARNING ("erand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ erand48_r (a,b,r))
+# undef jrand48
+# define jrand48(a) \
+ (GL_LINK_WARNING ("jrand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ jrand48 (a))
+# undef jrand48_r
+# define jrand48_r(a,b,r) \
+ (GL_LINK_WARNING ("drand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ jrand48_r (a,b,r))
+# undef lcong48
+# define lcong48(p) \
+ (GL_LINK_WARNING ("lcong48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ lcong48 (p))
+# undef lcong48_r
+# define lcong48_r(p,b) \
+ (GL_LINK_WARNING ("lcong48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ lcong48_r (p,b))
+# undef lrand48
+# define lrand48() \
+ (GL_LINK_WARNING ("lrand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ lrand48 ())
+# undef lrand48_r
+# define lrand48_r(b,r) \
+ (GL_LINK_WARNING ("lrand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ lrand48_r (b,r))
+# undef mrand48
+# define mrand48() \
+ (GL_LINK_WARNING ("mrand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ mrand48 ())
+# undef mrand48_r
+# define mrand48_r(b,r) \
+ (GL_LINK_WARNING ("mrand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ mrand48_r (b,r))
+# undef nrand48
+# define nrand48(a) \
+ (GL_LINK_WARNING ("nrand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ nrand48 (a,))
+# undef nrand48_r
+# define nrand48_r(a,b,r) \
+ (GL_LINK_WARNING ("nrand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ nrand48_r (a,b,r))
+# undef seed48
+# define seed48(s) \
+ (GL_LINK_WARNING ("seed48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ seed48 (s))
+# undef seed48_r
+# define seed48_r(s,b) \
+ (GL_LINK_WARNING ("seed48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ seed48_r (s,b))
+# undef srand48
+# define srand48(s) \
+ (GL_LINK_WARNING ("srand48 is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ srand48 (s))
+# undef srand48_r
+# define srand48_r(s,b) \
+ (GL_LINK_WARNING ("srand48_r is unportable - " \
+ "use gnulib module rand48 for portability"), \
+ srand48_r (s,b))
+#endif
+
+
#if @GNULIB_RANDOM_R@
# if [EMAIL PROTECTED]@
diff --git a/m4/rand48.m4 b/m4/rand48.m4
new file mode 100644
index 0000000..1e38ae1
--- /dev/null
+++ b/m4/rand48.m4
@@ -0,0 +1,21 @@
+# serial 1
+dnl Copyright (C) 2008 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_RAND48],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_CHECK_FUNCS([drand48 erand48 lrand48 nrand48 mrand48 jrand48 srand48
seed48 lcong48 drand48_r erand48_r lrand48_r nrand48_r mrand48_r jrand48_r
srand48_r seed48_r lcong48_r])
+ if test $ac_cv_func_drand48 = no -o $ac_cv_func_erand48 = no -o
$ac_cv_func_lrand48 = no -o $ac_cv_func_nrand48 = no -o $ac_cv_func_mrand48 =
no -o $ac_cv_func_jrand48 = no -o $ac_cv_func_srand48 = no -o
$ac_cv_func_seed48 = no -o $ac_cv_func_lcong48 = no -o $ac_cv_func_drand48_r =
no -o $ac_cv_func_erand48_r = no -o $ac_cv_func_lrand48_r = no -o
$ac_cv_func_nrand48_r = no -o $ac_cv_func_mrand48_r = no -o
$ac_cv_func_jrand48_r = no -o $ac_cv_func_srand48_r = no -o
$ac_cv_func_seed48_r = no -o $ac_cv_func_lcong48_r = no ; then
+ HAVE_RAND48=0
+ AC_LIBOBJ([rand48])
+ gl_PREREQ_RAND48
+ fi
+])
+
+# Prerequisites of lib/rand48.c.
+AC_DEFUN([gl_PREREQ_RAND48], [
+ AC_CHECK_HEADERS([ieee754.h])
+])
diff --git a/m4/stdlib_h.m4 b/m4/stdlib_h.m4
index 582db13..7b09882 100644
--- a/m4/stdlib_h.m4
+++ b/m4/stdlib_h.m4
@@ -31,6 +31,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
GNULIB_MKDTEMP=0; AC_SUBST([GNULIB_MKDTEMP])
GNULIB_MKSTEMP=0; AC_SUBST([GNULIB_MKSTEMP])
GNULIB_PUTENV=0; AC_SUBST([GNULIB_PUTENV])
+ GNULIB_RAND48=0; AC_SUBST([GNULIB_RAND48])
GNULIB_RANDOM_R=0; AC_SUBST([GNULIB_RANDOM_R])
GNULIB_RPMATCH=0; AC_SUBST([GNULIB_RPMATCH])
GNULIB_SETENV=0; AC_SUBST([GNULIB_SETENV])
@@ -45,6 +46,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
HAVE_MALLOC_POSIX=1; AC_SUBST([HAVE_MALLOC_POSIX])
HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP])
HAVE_REALLOC_POSIX=1; AC_SUBST([HAVE_REALLOC_POSIX])
+ HAVE_RAND48=1; AC_SUBST([HAVE_RAND48])
HAVE_RANDOM_R=1; AC_SUBST([HAVE_RANDOM_R])
HAVE_RPMATCH=1; AC_SUBST([HAVE_RPMATCH])
HAVE_SETENV=1; AC_SUBST([HAVE_SETENV])
diff --git a/modules/rand48 b/modules/rand48
new file mode 100644
index 0000000..7517db8
--- /dev/null
+++ b/modules/rand48
@@ -0,0 +1,24 @@
+Description:
+uniformly distributed random number generator functions
+
+Files:
+lib/rand48.c
+m4/rand48.m4
+
+Depends-on:
+stdlib
+
+configure.ac:
+gl_FUNC_RAND48
+gl_STDLIB_MODULE_INDICATOR([rand48])
+
+Makefile.am:
+
+Include:
+#include <stdlib.h>
+
+License:
+LGPLv2+
+
+Maintainer:
+Richard W.M. Jones
diff --git a/modules/stdlib b/modules/stdlib
index edd9e45..b2401e5 100644
--- a/modules/stdlib
+++ b/modules/stdlib
@@ -33,6 +33,7 @@ stdlib.h: stdlib.in.h
-e 's|@''GNULIB_MKDTEMP''@|$(GNULIB_MKDTEMP)|g' \
-e 's|@''GNULIB_MKSTEMP''@|$(GNULIB_MKSTEMP)|g' \
-e 's|@''GNULIB_PUTENV''@|$(GNULIB_PUTENV)|g' \
+ -e 's|@''GNULIB_RAND48''@|$(GNULIB_RAND48)|g' \
-e 's|@''GNULIB_RANDOM_R''@|$(GNULIB_RANDOM_R)|g' \
-e 's|@''GNULIB_RPMATCH''@|$(GNULIB_RPMATCH)|g' \
-e 's|@''GNULIB_SETENV''@|$(GNULIB_SETENV)|g' \
@@ -46,6 +47,7 @@ stdlib.h: stdlib.in.h
-e 's|@''HAVE_MALLOC_POSIX''@|$(HAVE_MALLOC_POSIX)|g' \
-e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
-e 's|@''HAVE_REALLOC_POSIX''@|$(HAVE_REALLOC_POSIX)|g' \
+ -e 's|@''HAVE_RAND48''@|$(HAVE_RAND48)|g' \
-e 's|@''HAVE_RANDOM_R''@|$(HAVE_RANDOM_R)|g' \
-e 's|@''HAVE_RPMATCH''@|$(HAVE_RPMATCH)|g' \
-e 's|@''HAVE_SETENV''@|$(HAVE_SETENV)|g' \
--
1.6.0.3
