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patches/mpfr/2.4.1/100-remainder-neg.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Aug 30 16:54:30 2009 +0200 (2009-08-30)
changeset 1502 472cfde636a1
permissions -rw-r--r--
config: move the "build shared libraries" option to the OS menu

The "Build shared libraries" config option is dependant on the type of
"Target OS".

Moving this options to the "Target OS" sub-menu is also better in the user
perspective: he/she no longer needs to go back and forth to see if he/she
missed any option. 
     1 diff -Naurd mpfr-2.4.1-a/PATCHES mpfr-2.4.1-b/PATCHES

     2 --- mpfr-2.4.1-a/PATCHES	2009-02-20 09:43:17.000000000 +0000

     3 +++ mpfr-2.4.1-b/PATCHES	2009-02-27 16:56:29.000000000 +0000

     4 @@ -0,0 +1 @@

     5 +remainder-neg

     6 diff -Naurd mpfr-2.4.1-a/VERSION mpfr-2.4.1-b/VERSION

     7 --- mpfr-2.4.1-a/VERSION	2009-02-25 16:16:08.000000000 +0000

     8 +++ mpfr-2.4.1-b/VERSION	2009-02-27 16:55:37.000000000 +0000

     9 @@ -1 +1 @@

    10 -2.4.1

    11 +2.4.1-p1

    12 diff -Naurd mpfr-2.4.1-a/mpfr.h mpfr-2.4.1-b/mpfr.h

    13 --- mpfr-2.4.1-a/mpfr.h	2009-02-25 16:16:08.000000000 +0000

    14 +++ mpfr-2.4.1-b/mpfr.h	2009-02-27 16:55:38.000000000 +0000

    15 @@ -27,7 +27,7 @@

    16  #define MPFR_VERSION_MAJOR 2

    17  #define MPFR_VERSION_MINOR 4

    18  #define MPFR_VERSION_PATCHLEVEL 1

    19 -#define MPFR_VERSION_STRING "2.4.1"

    20 +#define MPFR_VERSION_STRING "2.4.1-p1"

    21  

    22  /* Macros dealing with MPFR VERSION */

    23  #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))

    24 diff -Naurd mpfr-2.4.1-a/rem1.c mpfr-2.4.1-b/rem1.c

    25 --- mpfr-2.4.1-a/rem1.c	2009-02-20 09:43:17.000000000 +0000

    26 +++ mpfr-2.4.1-b/rem1.c	2009-02-27 16:55:15.000000000 +0000

    27 @@ -170,7 +170,12 @@

    28      }

    29  

    30    if (mpz_cmp_ui (r, 0) == 0)

    31 -    inex = mpfr_set_ui (rem, 0, GMP_RNDN);

    32 +    {

    33 +      inex = mpfr_set_ui (rem, 0, GMP_RNDN);

    34 +      /* take into account sign of x */

    35 +      if (signx < 0)

    36 +        mpfr_neg (rem, rem, GMP_RNDN);

    37 +    }

    38    else

    39      {

    40        if (rnd_q == GMP_RNDN)

    41 @@ -190,6 +195,9 @@

    42                  *quo += 1;

    43              }

    44          }

    45 +      /* take into account sign of x */

    46 +      if (signx < 0)

    47 +        mpz_neg (r, r);

    48        inex = mpfr_set_z (rem, r, rnd);

    49        /* if ex > ey, rem should be multiplied by 2^ey, else by 2^ex */

    50        MPFR_EXP (rem) += (ex > ey) ? ey : ex;

    51 @@ -198,13 +206,6 @@

    52    if (quo)

    53      *quo *= sign;

    54  

    55 -  /* take into account sign of x */

    56 -  if (signx < 0)

    57 -    {

    58 -      mpfr_neg (rem, rem, GMP_RNDN);

    59 -      inex = -inex;

    60 -    }

    61 -

    62    mpz_clear (mx);

    63    mpz_clear (my);

    64    mpz_clear (r);

    65 diff -Naurd mpfr-2.4.1-a/tests/tremquo.c mpfr-2.4.1-b/tests/tremquo.c

    66 --- mpfr-2.4.1-a/tests/tremquo.c	2009-02-20 09:43:15.000000000 +0000

    67 +++ mpfr-2.4.1-b/tests/tremquo.c	2009-02-27 16:55:15.000000000 +0000

    68 @@ -25,6 +25,36 @@

    69  

    70  #include "mpfr-test.h"

    71  

    72 +static void

    73 +bug20090227 (void)

    74 +{

    75 +  mpfr_t x, y, r1, r2;

    76 +  int inex1, inex2;

    77 +

    78 +  mpfr_init2 (x, 118);

    79 +  mpfr_init2 (y, 181);

    80 +  mpfr_init2 (r1, 140);

    81 +  mpfr_init2 (r2, 140);

    82 +  mpfr_set_si (x, -1, GMP_RNDN);

    83 +  mpfr_set_str_binary (y, "1.100100100001111110110101010001000100001011010001100001000110100110001001100011001100010100010111000000011011100000111001101000100101001000000100100111000001000100010100110011111010");

    84 +  inex1 = mpfr_remainder (r1, x, y, GMP_RNDU);

    85 +  /* since the quotient is -1, r1 is the rounding of x+y */

    86 +  inex2 = mpfr_add (r2, x, y, GMP_RNDU);

    87 +  if (mpfr_cmp (r1, r2))

    88 +    {

    89 +      printf ("Error in mpfr_remainder (bug20090227)\n");

    90 +      printf ("Expected ");

    91 +      mpfr_dump (r2);

    92 +      printf ("Got      ");

    93 +      mpfr_dump (r1);

    94 +      exit (1);

    95 +    }

    96 +  mpfr_clear (x);

    97 +  mpfr_clear (y);

    98 +  mpfr_clear (r1);

    99 +  mpfr_clear (r2);

   100 +}

   101 +

   102  int

   103  main (int argc, char *argv[])

   104  {

   105 @@ -50,6 +80,8 @@

   106  

   107    tests_start_mpfr ();

   108  

   109 +  bug20090227 ();

   110 +

   111    mpfr_init (x);

   112    mpfr_init (y);

   113    mpfr_init (r);

   114 diff -Naurd mpfr-2.4.1-a/version.c mpfr-2.4.1-b/version.c

   115 --- mpfr-2.4.1-a/version.c	2009-02-25 16:16:08.000000000 +0000

   116 +++ mpfr-2.4.1-b/version.c	2009-02-27 16:55:38.000000000 +0000

   117 @@ -25,5 +25,5 @@

   118  const char *

   119  mpfr_get_version (void)

   120  {

   121 -  return "2.4.1";

   122 +  return "2.4.1-p1";

   123  }
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