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

diff --git a/libdecnumber/decSingle.h b/libdecnumber/decSingle.h
index bae3984..3904d94 100644 (file)
--- a/libdecnumber/decSingle.h
+++ b/libdecnumber/decSingle.h
@@ -1,54 +1,47 @@
 /* decSingle module header for the decNumber C Library.
 /* decSingle module header for the decNumber C Library.

-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 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/>.  */

 
 /* ------------------------------------------------------------------ */
 /* decSingle.h -- Decimal 32-bit format module header                */
 /* ------------------------------------------------------------------ */
 
 /* ------------------------------------------------------------------ */
 /* decSingle.h -- Decimal 32-bit format module header                */
 /* ------------------------------------------------------------------ */

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

 
 #if !defined(DECSINGLE)
   #define DECSINGLE
 
 
 #if !defined(DECSINGLE)
   #define DECSINGLE
 

-  #define DECSINGLENAME              "decSingle"             /* Short name   */
+  #define DECSINGLENAME       "decSingle"            /* Short name   */

   #define DECSINGLETITLE      "Decimal 32-bit datum"  /* Verbose name */
   #define DECSINGLEAUTHOR     "Mike Cowlishaw"       /* Who to blame */
 
   /* parameters for decSingles */
   #define DECSINGLE_Bytes    4    /* length                          */
   #define DECSINGLE_Pmax     7    /* maximum precision (digits)      */
   #define DECSINGLETITLE      "Decimal 32-bit datum"  /* Verbose name */
   #define DECSINGLEAUTHOR     "Mike Cowlishaw"       /* Who to blame */
 
   /* parameters for decSingles */
   #define DECSINGLE_Bytes    4    /* length                          */
   #define DECSINGLE_Pmax     7    /* maximum precision (digits)      */

-  #define DECSINGLE_Emin   -95    /* minimum adjusted exponent       */
-  #define DECSINGLE_Emax    96    /* maximum adjusted exponent       */
+  #define DECSINGLE_Emin   -95    /* minimum adjusted exponent       */
+  #define DECSINGLE_Emax    96    /* maximum adjusted exponent       */

   #define DECSINGLE_EmaxD    3    /* maximum exponent digits         */
   #define DECSINGLE_Bias   101    /* bias for the exponent           */
   #define DECSINGLE_EmaxD    3    /* maximum exponent digits         */
   #define DECSINGLE_Bias   101    /* bias for the exponent           */

-  #define DECSINGLE_String  16    /* maximum string length, +1       */
+  #define DECSINGLE_String  16    /* maximum string length, +1       */

   #define DECSINGLE_EconL    6    /* exponent continuation length    */
   #define DECSINGLE_Declets  2    /* count of declets                */
   /* highest biased exponent (Elimit-1) */
   #define DECSINGLE_EconL    6    /* exponent continuation length    */
   #define DECSINGLE_Declets  2    /* count of declets                */
   /* highest biased exponent (Elimit-1) */


@@ -59,11 +52,11 @@
   #include "decQuad.h"
   #include "decDouble.h"
 
   #include "decQuad.h"
   #include "decDouble.h"
 

-  /* The decSingle decimal 32-bit type, accessible by various types */
+  /* The decSingle decimal 32-bit type, accessible by all sizes */

   typedef union {
   typedef union {

-    uint8_t bytes[DECSINGLE_Bytes];    /* fields: 1, 5, 6, 20 bits */
+    uint8_t   bytes[DECSINGLE_Bytes];  /* fields: 1, 5, 6, 20 bits */

     uint16_t shorts[DECSINGLE_Bytes/2];
     uint16_t shorts[DECSINGLE_Bytes/2];

-    uint32_t words[DECSINGLE_Bytes/4];
+    uint32_t  words[DECSINGLE_Bytes/4];

     } decSingle;
 
   /* ---------------------------------------------------------------- */
     } decSingle;
 
   /* ---------------------------------------------------------------- */


@@ -75,6 +68,7 @@
   /* Utilities (binary argument(s) or result, extractors, etc.) */
   extern decSingle * decSingleFromBCD(decSingle *, int32_t, const uint8_t *, int32_t);
   extern decSingle * decSingleFromPacked(decSingle *, int32_t, const uint8_t *);
   /* Utilities (binary argument(s) or result, extractors, etc.) */
   extern decSingle * decSingleFromBCD(decSingle *, int32_t, const uint8_t *, int32_t);
   extern decSingle * decSingleFromPacked(decSingle *, int32_t, const uint8_t *);

+  extern decSingle * decSingleFromPackedChecked(decSingle *, int32_t, const uint8_t *);

   extern decSingle * decSingleFromString(decSingle *, const char *, decContext *);
   extern decSingle * decSingleFromWider(decSingle *, const decDouble *, decContext *);
   extern int32_t     decSingleGetCoefficient(const decSingle *, uint8_t *);
   extern decSingle * decSingleFromString(decSingle *, const char *, decContext *);
   extern decSingle * decSingleFromWider(decSingle *, const decDouble *, decContext *);
   extern int32_t     decSingleGetCoefficient(const decSingle *, uint8_t *);


@@ -97,7 +91,8 @@
 
   /* decNumber conversions; these are implemented as macros so as not  */
   /* to force a dependency on decimal32 and decNumber in decSingle.    */
 
   /* decNumber conversions; these are implemented as macros so as not  */
   /* to force a dependency on decimal32 and decNumber in decSingle.    */

+  /* decSingleFromNumber returns a decimal32 * to avoid warnings.      */

   #define decSingleToNumber(dq, dn) decimal32ToNumber((decimal32 *)(dq), dn)
   #define decSingleToNumber(dq, dn) decimal32ToNumber((decimal32 *)(dq), dn)

-  #define decSingleFromNumber(dq, dn, set) (decSingle *)decimal32FromNumber((decimal32 *)(dq), dn, set)
+  #define decSingleFromNumber(dq, dn, set) decimal32FromNumber((decimal32 *)(dq), dn, set)

 
 #endif
 
 #endif