libquadmath/printf/gmp-impl.h

   1 /* Include file for internal GNU MP types and definitions.
   2
   3 Copyright (C) 1991, 1993, 1994, 1995, 1996, 2011 Free Software Foundation, Inc.
   4
   5 This file is part of the GNU MP Library.
   6
   7 The GNU MP Library is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU Lesser General Public License as published by
   9 the Free Software Foundation; either version 2.1 of the License, or (at your
  10 option) any later version.
  11
  12 The GNU MP Library is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15 License for more details.
  16
  17 You should have received a copy of the GNU Lesser General Public License
  18 along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
  19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  20 MA 02111-1307, USA. */
  21
  22 #include <stdlib.h>
  23 #include "quadmath-imp.h"
  24
  25 #undef alloca
  26 #define alloca __builtin_alloca
  27
  28 #define ABS(x) (x >= 0 ? x : -x)
  29 #ifndef MIN
  30 #define MIN(l,o) ((l) < (o) ? (l) : (o))
  31 #endif
  32 #ifndef MAX
  33 #define MAX(h,i) ((h) > (i) ? (h) : (i))
  34 #endif
  35
  36 #define BITS_PER_MP_LIMB (__SIZEOF_LONG__ * __CHAR_BIT__)
  37 #define BYTES_PER_MP_LIMB (BITS_PER_MP_LIMB / __CHAR_BIT__)
  38 typedef unsigned long int       mp_limb_t;
  39 typedef long int                mp_limb_signed_t;
  40
  41 typedef mp_limb_t *             mp_ptr;
  42 typedef const mp_limb_t *       mp_srcptr;
  43 typedef long int                mp_size_t;
  44 typedef long int                mp_exp_t;
  45
  46 /* Define stuff for longlong.h.  */
  47 typedef unsigned int UQItype    __attribute__ ((mode (QI)));
  48 typedef          int SItype     __attribute__ ((mode (SI)));
  49 typedef unsigned int USItype    __attribute__ ((mode (SI)));
  50 typedef          int DItype     __attribute__ ((mode (DI)));
  51 typedef unsigned int UDItype    __attribute__ ((mode (DI)));
  52
  53 typedef mp_limb_t UWtype;
  54 typedef unsigned int UHWtype;
  55 #define W_TYPE_SIZE BITS_PER_MP_LIMB
  56
  57 #ifdef HAVE_HIDDEN_VISIBILITY
  58 #define attribute_hidden __attribute__((__visibility__ ("hidden")))
  59 #else
  60 #define attribute_hidden
  61 #endif
  62
  63 #include "longlong.h"
  64
  65 /* Copy NLIMBS *limbs* from SRC to DST.  */
  66 #define MPN_COPY_INCR(DST, SRC, NLIMBS) \
  67   do {                                                                  \
  68     mp_size_t __i;                                                      \
  69     for (__i = 0; __i < (NLIMBS); __i++)                                \
  70       (DST)[__i] = (SRC)[__i];                                          \
  71   } while (0)
  72 #define MPN_COPY_DECR(DST, SRC, NLIMBS) \
  73   do {                                                                  \
  74     mp_size_t __i;                                                      \
  75     for (__i = (NLIMBS) - 1; __i >= 0; __i--)                           \
  76       (DST)[__i] = (SRC)[__i];                                          \
  77   } while (0)
  78 #define MPN_COPY MPN_COPY_INCR
  79
  80 /* Zero NLIMBS *limbs* AT DST.  */
  81 #define MPN_ZERO(DST, NLIMBS) \
  82   do {                                                                  \
  83     mp_size_t __i;                                                      \
  84     for (__i = 0; __i < (NLIMBS); __i++)                                \
  85       (DST)[__i] = 0;                                                   \
  86   } while (0)
  87
  88 #define MPN_MUL_N_RECURSE(prodp, up, vp, size, tspace) \
  89   do {                                                                  \
  90     if ((size) < KARATSUBA_THRESHOLD)                                   \
  91       impn_mul_n_basecase (prodp, up, vp, size);                        \
  92     else                                                                \
  93       impn_mul_n (prodp, up, vp, size, tspace);                 \
  94   } while (0)
  95
  96 #define __MPN(x) __quadmath_mpn_##x
  97
  98 /* Internal mpn calls */
  99 #define impn_mul_n_basecase     __MPN(impn_mul_n_basecase)
 100 #define impn_mul_n              __MPN(impn_mul_n)
 101
 102 /* Prototypes for internal mpn calls.  */
 103 void impn_mul_n_basecase (mp_ptr prodp, mp_srcptr up, mp_srcptr vp,
 104                           mp_size_t size) attribute_hidden;
 105 void impn_mul_n (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size,
 106                  mp_ptr tspace) attribute_hidden;
 107
 108 #define mpn_add_n               __MPN(add_n)
 109 #define mpn_addmul_1            __MPN(addmul_1)
 110 #define mpn_cmp                 __MPN(cmp)
 111 #define mpn_divrem              __MPN(divrem)
 112 #define mpn_lshift              __MPN(lshift)
 113 #define mpn_mul                 __MPN(mul)
 114 #define mpn_mul_1               __MPN(mul_1)
 115 #define mpn_rshift              __MPN(rshift)
 116 #define mpn_sub_n               __MPN(sub_n)
 117 #define mpn_submul_1            __MPN(submul_1)
 118
 119 mp_limb_t mpn_add_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
 120      attribute_hidden;
 121 mp_limb_t mpn_addmul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
 122      attribute_hidden;
 123 int mpn_cmp (mp_srcptr, mp_srcptr, mp_size_t) attribute_hidden;
 124 mp_limb_t mpn_divrem (mp_ptr, mp_size_t, mp_ptr, mp_size_t, mp_srcptr,
 125                       mp_size_t) attribute_hidden;
 126 mp_limb_t mpn_lshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int)
 127      attribute_hidden;
 128 mp_limb_t mpn_mul (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr, mp_size_t)
 129      attribute_hidden;
 130 mp_limb_t mpn_mul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
 131      attribute_hidden;
 132 mp_limb_t mpn_rshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int)
 133      attribute_hidden;
 134 mp_limb_t mpn_sub_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
 135      attribute_hidden;
 136 mp_limb_t mpn_submul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
 137      attribute_hidden;
 138
 139 #define mpn_extract_flt128 __MPN(extract_flt128)
 140 mp_size_t mpn_extract_flt128 (mp_ptr res_ptr, mp_size_t size, int *expt,
 141                               int *is_neg, __float128 value) attribute_hidden;
 142
 143 #define mpn_construct_float128 __MPN(construct_float128)
 144 __float128 mpn_construct_float128 (mp_srcptr frac_ptr, int expt, int sign)
 145      attribute_hidden;
 146
 147 #define mpn_divmod(qp,np,nsize,dp,dsize) mpn_divrem (qp,0,np,nsize,dp,dsize)
 148
 149 static inline mp_limb_t
 150 mpn_add_1 (register mp_ptr res_ptr,
 151            register mp_srcptr s1_ptr,
 152            register mp_size_t s1_size,
 153            register mp_limb_t s2_limb)
 154 {
 155   register mp_limb_t x;
 156
 157   x = *s1_ptr++;
 158   s2_limb = x + s2_limb;
 159   *res_ptr++ = s2_limb;
 160   if (s2_limb < x)
 161     {
 162       while (--s1_size != 0)
 163         {
 164           x = *s1_ptr++ + 1;
 165           *res_ptr++ = x;
 166           if (x != 0)
 167             goto fin;
 168         }
 169
 170       return 1;
 171     }
 172
 173  fin:
 174   if (res_ptr != s1_ptr)
 175     {
 176       mp_size_t i;
 177       for (i = 0; i < s1_size - 1; i++)
 178         res_ptr[i] = s1_ptr[i];
 179     }
 180   return 0;
 181 }