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comparison libdecnumber/decSingle.h @ 55:77e2b8dfacca gcc-4.4.5

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update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
parents a06113de4d67
children 04ced10e8804
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52:c156f1bd5cd9 55:77e2b8dfacca
24 <http://www.gnu.org/licenses/>. */ 24 <http://www.gnu.org/licenses/>. */
25 25
26 /* ------------------------------------------------------------------ */ 26 /* ------------------------------------------------------------------ */
27 /* decSingle.h -- Decimal 32-bit format module header */ 27 /* decSingle.h -- Decimal 32-bit format module header */
28 /* ------------------------------------------------------------------ */ 28 /* ------------------------------------------------------------------ */
29 /* Please see decFloats.h for an overview and documentation details. */
30 /* ------------------------------------------------------------------ */
31 29
32 #if !defined(DECSINGLE) 30 #if !defined(DECSINGLE)
33 #define DECSINGLE 31 #define DECSINGLE
34 32
35 #define DECSINGLENAME "decSingle" /* Short name */ 33 #define DECSINGLENAME "decSingle" /* Short name */
36 #define DECSINGLETITLE "Decimal 32-bit datum" /* Verbose name */ 34 #define DECSINGLETITLE "Decimal 32-bit datum" /* Verbose name */
37 #define DECSINGLEAUTHOR "Mike Cowlishaw" /* Who to blame */ 35 #define DECSINGLEAUTHOR "Mike Cowlishaw" /* Who to blame */
38 36
39 /* parameters for decSingles */ 37 /* parameters for decSingles */
40 #define DECSINGLE_Bytes 4 /* length */ 38 #define DECSINGLE_Bytes 4 /* length */
41 #define DECSINGLE_Pmax 7 /* maximum precision (digits) */ 39 #define DECSINGLE_Pmax 7 /* maximum precision (digits) */
42 #define DECSINGLE_Emin -95 /* minimum adjusted exponent */ 40 #define DECSINGLE_Emin -95 /* minimum adjusted exponent */
43 #define DECSINGLE_Emax 96 /* maximum adjusted exponent */ 41 #define DECSINGLE_Emax 96 /* maximum adjusted exponent */
44 #define DECSINGLE_EmaxD 3 /* maximum exponent digits */ 42 #define DECSINGLE_EmaxD 3 /* maximum exponent digits */
45 #define DECSINGLE_Bias 101 /* bias for the exponent */ 43 #define DECSINGLE_Bias 101 /* bias for the exponent */
46 #define DECSINGLE_String 16 /* maximum string length, +1 */ 44 #define DECSINGLE_String 16 /* maximum string length, +1 */
47 #define DECSINGLE_EconL 6 /* exponent continuation length */ 45 #define DECSINGLE_EconL 6 /* exponent continuation length */
48 #define DECSINGLE_Declets 2 /* count of declets */ 46 #define DECSINGLE_Declets 2 /* count of declets */
49 /* highest biased exponent (Elimit-1) */ 47 /* highest biased exponent (Elimit-1) */
50 #define DECSINGLE_Ehigh (DECSINGLE_Emax + DECSINGLE_Bias - (DECSINGLE_Pmax-1)) 48 #define DECSINGLE_Ehigh (DECSINGLE_Emax + DECSINGLE_Bias - (DECSINGLE_Pmax-1))
51 49
52 /* Required includes */ 50 /* Required includes */
53 #include "decContext.h" 51 #include "decContext.h"
54 #include "decQuad.h" 52 #include "decQuad.h"
55 #include "decDouble.h" 53 #include "decDouble.h"
56 54
57 /* The decSingle decimal 32-bit type, accessible by various types */ 55 /* The decSingle decimal 32-bit type, accessible by all sizes */
58 typedef union { 56 typedef union {
59 uint8_t bytes[DECSINGLE_Bytes]; /* fields: 1, 5, 6, 20 bits */ 57 uint8_t bytes[DECSINGLE_Bytes]; /* fields: 1, 5, 6, 20 bits */
60 uint16_t shorts[DECSINGLE_Bytes/2]; 58 uint16_t shorts[DECSINGLE_Bytes/2];
61 uint32_t words[DECSINGLE_Bytes/4]; 59 uint32_t words[DECSINGLE_Bytes/4];
62 } decSingle; 60 } decSingle;
63 61
64 /* ---------------------------------------------------------------- */ 62 /* ---------------------------------------------------------------- */
65 /* Routines -- implemented as decFloat routines in common files */ 63 /* Routines -- implemented as decFloat routines in common files */
66 /* ---------------------------------------------------------------- */ 64 /* ---------------------------------------------------------------- */
68 #include "decSingleSymbols.h" 66 #include "decSingleSymbols.h"
69 67
70 /* Utilities (binary argument(s) or result, extractors, etc.) */ 68 /* Utilities (binary argument(s) or result, extractors, etc.) */
71 extern decSingle * decSingleFromBCD(decSingle *, int32_t, const uint8_t *, int32_t); 69 extern decSingle * decSingleFromBCD(decSingle *, int32_t, const uint8_t *, int32_t);
72 extern decSingle * decSingleFromPacked(decSingle *, int32_t, const uint8_t *); 70 extern decSingle * decSingleFromPacked(decSingle *, int32_t, const uint8_t *);
71 extern decSingle * decSingleFromPackedChecked(decSingle *, int32_t, const uint8_t *);
73 extern decSingle * decSingleFromString(decSingle *, const char *, decContext *); 72 extern decSingle * decSingleFromString(decSingle *, const char *, decContext *);
74 extern decSingle * decSingleFromWider(decSingle *, const decDouble *, decContext *); 73 extern decSingle * decSingleFromWider(decSingle *, const decDouble *, decContext *);
75 extern int32_t decSingleGetCoefficient(const decSingle *, uint8_t *); 74 extern int32_t decSingleGetCoefficient(const decSingle *, uint8_t *);
76 extern int32_t decSingleGetExponent(const decSingle *); 75 extern int32_t decSingleGetExponent(const decSingle *);
77 extern decSingle * decSingleSetCoefficient(decSingle *, const uint8_t *, int32_t); 76 extern decSingle * decSingleSetCoefficient(decSingle *, const uint8_t *, int32_t);
90 extern uint32_t decSingleRadix(const decSingle *); 89 extern uint32_t decSingleRadix(const decSingle *);
91 extern const char * decSingleVersion(void); 90 extern const char * decSingleVersion(void);
92 91
93 /* decNumber conversions; these are implemented as macros so as not */ 92 /* decNumber conversions; these are implemented as macros so as not */
94 /* to force a dependency on decimal32 and decNumber in decSingle. */ 93 /* to force a dependency on decimal32 and decNumber in decSingle. */
94 /* decSingleFromNumber returns a decimal32 * to avoid warnings. */
95 #define decSingleToNumber(dq, dn) decimal32ToNumber((decimal32 *)(dq), dn) 95 #define decSingleToNumber(dq, dn) decimal32ToNumber((decimal32 *)(dq), dn)
96 #define decSingleFromNumber(dq, dn, set) (decSingle *)decimal32FromNumber((decimal32 *)(dq), dn, set) 96 #define decSingleFromNumber(dq, dn, set) decimal32FromNumber((decimal32 *)(dq), dn, set)
97 97
98 #endif 98 #endif