* doc/invoke.texi: Fix name of sched1 dump.

[pf3gnuchains/gcc-fork.git] / libdecnumber / decQuad.h

diff --git a/libdecnumber/decQuad.h b/libdecnumber/decQuad.h
index 39f75d3..60cc632 100644 (file)
--- a/libdecnumber/decQuad.h
+++ b/libdecnumber/decQuad.h
@@ -1,57 +1,50 @@
 /* decQuad module header for the decNumber C Library.
 /* decQuad module header for the decNumber C Library.

-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009 Free Software Foundation, Inc.

    Contributed by IBM Corporation.  Author Mike Cowlishaw.
 
    This file is part of GCC.
 
    GCC is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License as published by the Free
    Contributed by IBM Corporation.  Author Mike Cowlishaw.
 
    This file is part of GCC.
 
    GCC is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License as published by the Free

-   Software Foundation; either version 2, or (at your option) any later
+   Software Foundation; either version 3, or (at your option) any later

    version.
 
    version.
 

-   In addition to the permissions in the GNU General Public License,
-   the Free Software Foundation gives you unlimited permission to link
-   the compiled version of this file into combinations with other
-   programs, and to distribute those combinations without any
-   restriction coming from the use of this file.  (The General Public
-   License restrictions do apply in other respects; for example, they
-   cover modification of the file, and distribution when not linked
-   into a combine executable.)
-

    GCC 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 General Public License
    for more details.
 
    GCC 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 General Public License
    for more details.
 

-   You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */

 
 /* ------------------------------------------------------------------ */
 /* decQuad.h -- Decimal 128-bit format module header                 */
 /* ------------------------------------------------------------------ */
 
 /* ------------------------------------------------------------------ */
 /* decQuad.h -- Decimal 128-bit format module header                 */
 /* ------------------------------------------------------------------ */

-/* Please see decFloats.h for an overview and documentation details.  */
-/* ------------------------------------------------------------------ */

 /* This include file is always included by decSingle and decDouble,   */
 /* This include file is always included by decSingle and decDouble,   */

-/* and therefore also holds useful constants used by all three.              */
+/* and therefore also holds useful constants used by all three.       */

 
 #if !defined(DECQUAD)
   #define DECQUAD
 
   #define DECQUADNAME        "decimalQuad"           /* Short name   */
   #define DECQUADTITLE       "Decimal 128-bit datum" /* Verbose name */
 
 #if !defined(DECQUAD)
   #define DECQUAD
 
   #define DECQUADNAME        "decimalQuad"           /* Short name   */
   #define DECQUADTITLE       "Decimal 128-bit datum" /* Verbose name */

-  #define DECQUADAUTHOR              "Mike Cowlishaw"        /* Who to blame */
+  #define DECQUADAUTHOR       "Mike Cowlishaw"       /* Who to blame */

 
   /* parameters for decQuads */
 
   /* parameters for decQuads */

-  #define DECQUAD_Bytes           16      /* length                          */
+  #define DECQUAD_Bytes    16     /* length                          */

   #define DECQUAD_Pmax    34      /* maximum precision (digits)      */
   #define DECQUAD_Pmax    34      /* maximum precision (digits)      */

-  #define DECQUAD_Emin -6143      /* minimum adjusted exponent       */
-  #define DECQUAD_Emax  6144      /* maximum adjusted exponent       */
-  #define DECQUAD_EmaxD            4      /* maximum exponent digits         */
+  #define DECQUAD_Emin -6143      /* minimum adjusted exponent       */
+  #define DECQUAD_Emax  6144      /* maximum adjusted exponent       */
+  #define DECQUAD_EmaxD     4     /* maximum exponent digits         */

   #define DECQUAD_Bias  6176      /* bias for the exponent           */
   #define DECQUAD_Bias  6176      /* bias for the exponent           */

-  #define DECQUAD_String   43     /* maximum string length, +1       */
-  #define DECQUAD_EconL           12      /* exponent continuation length    */
+  #define DECQUAD_String   43     /* maximum string length, +1       */
+  #define DECQUAD_EconL    12     /* exponent continuation length    */

   #define DECQUAD_Declets  11     /* count of declets                */
   /* highest biased exponent (Elimit-1) */
   #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1))
   #define DECQUAD_Declets  11     /* count of declets                */
   /* highest biased exponent (Elimit-1) */
   #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1))


@@ -59,9 +52,14 @@
   /* Required include                                                */
   #include "decContext.h"
 
   /* Required include                                                */
   #include "decContext.h"
 

-  /* The decQuad decimal 128-bit type, accessible by bytes */
-  typedef struct {
-    uint8_t bytes[DECQUAD_Bytes];  /* fields: 1, 5, 12, 110 bits */
+  /* The decQuad decimal 128-bit type, accessible by all sizes */
+  typedef union {
+    uint8_t   bytes[DECQUAD_Bytes];    /* fields: 1, 5, 12, 110 bits */
+    uint16_t shorts[DECQUAD_Bytes/2];
+    uint32_t  words[DECQUAD_Bytes/4];
+    #if DECUSE64
+    uint64_t  longs[DECQUAD_Bytes/8];
+    #endif

     } decQuad;
 
   /* ---------------------------------------------------------------- */
     } decQuad;
 
   /* ---------------------------------------------------------------- */


@@ -70,21 +68,21 @@
 
   /* sign and special values [top 32-bits; last two bits are don't-care
      for Infinity on input, last bit don't-care for NaNs] */
 
   /* sign and special values [top 32-bits; last two bits are don't-care
      for Infinity on input, last bit don't-care for NaNs] */

-  #define DECFLOAT_Sign         0x80000000     /* 1 00000 00 Sign */
+  #define DECFLOAT_Sign  0x80000000    /* 1 00000 00 Sign */

   #define DECFLOAT_NaN  0x7c000000     /* 0 11111 00 NaN generic */
   #define DECFLOAT_NaN  0x7c000000     /* 0 11111 00 NaN generic */

-  #define DECFLOAT_qNaN         0x7c000000     /* 0 11111 00 qNaN */
-  #define DECFLOAT_sNaN         0x7e000000     /* 0 11111 10 sNaN */
+  #define DECFLOAT_qNaN  0x7c000000    /* 0 11111 00 qNaN */
+  #define DECFLOAT_sNaN  0x7e000000    /* 0 11111 10 sNaN */

   #define DECFLOAT_Inf  0x78000000     /* 0 11110 00 Infinity */
   #define DECFLOAT_MinSp 0x78000000    /* minimum special value */
                                        /* [specials are all >=MinSp] */
   /* Sign nibble constants                                           */
   #if !defined(DECPPLUSALT)
   #define DECFLOAT_Inf  0x78000000     /* 0 11110 00 Infinity */
   #define DECFLOAT_MinSp 0x78000000    /* minimum special value */
                                        /* [specials are all >=MinSp] */
   /* Sign nibble constants                                           */
   #if !defined(DECPPLUSALT)

-    #define DECPPLUSALT         0x0A /* alternate plus  nibble               */
-    #define DECPMINUSALT 0x0B /* alternate minus nibble                      */
-    #define DECPPLUS    0x0C /* preferred plus  nibble               */
-    #define DECPMINUS   0x0D /* preferred minus nibble               */
-    #define DECPPLUSALT2 0x0E /* alternate plus         nibble               */
-    #define DECPUNSIGNED 0x0F /* alternate plus         nibble (unsigned)    */
+    #define DECPPLUSALT  0x0A /* alternate plus  nibble              */
+    #define DECPMINUSALT 0x0B /* alternate minus nibble              */
+    #define DECPPLUS    0x0C /* preferred plus  nibble               */
+    #define DECPMINUS   0x0D /* preferred minus nibble               */
+    #define DECPPLUSALT2 0x0E /* alternate plus  nibble              */
+    #define DECPUNSIGNED 0x0F /* alternate plus  nibble (unsigned)    */

   #endif
 
   /* ---------------------------------------------------------------- */
   #endif
 
   /* ---------------------------------------------------------------- */


@@ -97,6 +95,7 @@
   extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t);
   extern decQuad * decQuadFromInt32(decQuad *, int32_t);
   extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *);
   extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t);
   extern decQuad * decQuadFromInt32(decQuad *, int32_t);
   extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *);

+  extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *);

   extern decQuad * decQuadFromString(decQuad *, const char *, decContext *);
   extern decQuad * decQuadFromUInt32(decQuad *, uint32_t);
   extern int32_t   decQuadGetCoefficient(const decQuad *, uint8_t *);
   extern decQuad * decQuadFromString(decQuad *, const char *, decContext *);
   extern decQuad * decQuadFromUInt32(decQuad *, uint32_t);
   extern int32_t   decQuadGetCoefficient(const decQuad *, uint8_t *);


@@ -180,7 +179,8 @@
 
   /* decNumber conversions; these are implemented as macros so as not  */
   /* to force a dependency on decimal128 and decNumber in decQuad.     */
 
   /* decNumber conversions; these are implemented as macros so as not  */
   /* to force a dependency on decimal128 and decNumber in decQuad.     */

+  /* decQuadFromNumber returns a decimal128 * to avoid warnings.       */

   #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn)
   #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn)

-  #define decQuadFromNumber(dq, dn, set) (decQuad *)decimal128FromNumber((decimal128 *)(dq), dn, set)
+  #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set)

 
 #endif
 
 #endif