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comparison libdecnumber/decDouble.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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equal deleted inserted replaced
52:c156f1bd5cd9 55:77e2b8dfacca
24 <http://www.gnu.org/licenses/>. */ 24 <http://www.gnu.org/licenses/>. */
25 25
26 /* ------------------------------------------------------------------ */ 26 /* ------------------------------------------------------------------ */
27 /* decDouble.h -- Decimal 64-bit format module header */ 27 /* decDouble.h -- Decimal 64-bit format module header */
28 /* ------------------------------------------------------------------ */ 28 /* ------------------------------------------------------------------ */
29 /* Please see decFloats.h for an overview and documentation details. */
30 /* ------------------------------------------------------------------ */
31 29
32 #if !defined(DECDOUBLE) 30 #if !defined(DECDOUBLE)
33 #define DECDOUBLE 31 #define DECDOUBLE
34 32
35 #define DECDOUBLENAME "decimalDouble" /* Short name */ 33 #define DECDOUBLENAME "decimalDouble" /* Short name */
36 #define DECDOUBLETITLE "Decimal 64-bit datum" /* Verbose name */ 34 #define DECDOUBLETITLE "Decimal 64-bit datum" /* Verbose name */
37 #define DECDOUBLEAUTHOR "Mike Cowlishaw" /* Who to blame */ 35 #define DECDOUBLEAUTHOR "Mike Cowlishaw" /* Who to blame */
38 36
39 /* parameters for decDoubles */ 37 /* parameters for decDoubles */
40 #define DECDOUBLE_Bytes 8 /* length */ 38 #define DECDOUBLE_Bytes 8 /* length */
41 #define DECDOUBLE_Pmax 16 /* maximum precision (digits) */ 39 #define DECDOUBLE_Pmax 16 /* maximum precision (digits) */
42 #define DECDOUBLE_Emin -383 /* minimum adjusted exponent */ 40 #define DECDOUBLE_Emin -383 /* minimum adjusted exponent */
43 #define DECDOUBLE_Emax 384 /* maximum adjusted exponent */ 41 #define DECDOUBLE_Emax 384 /* maximum adjusted exponent */
44 #define DECDOUBLE_EmaxD 3 /* maximum exponent digits */ 42 #define DECDOUBLE_EmaxD 3 /* maximum exponent digits */
45 #define DECDOUBLE_Bias 398 /* bias for the exponent */ 43 #define DECDOUBLE_Bias 398 /* bias for the exponent */
46 #define DECDOUBLE_String 25 /* maximum string length, +1 */ 44 #define DECDOUBLE_String 25 /* maximum string length, +1 */
47 #define DECDOUBLE_EconL 8 /* exponent continuation length */ 45 #define DECDOUBLE_EconL 8 /* exponent continuation length */
48 #define DECDOUBLE_Declets 5 /* count of declets */ 46 #define DECDOUBLE_Declets 5 /* count of declets */
49 /* highest biased exponent (Elimit-1) */ 47 /* highest biased exponent (Elimit-1) */
50 #define DECDOUBLE_Ehigh (DECDOUBLE_Emax + DECDOUBLE_Bias - (DECDOUBLE_Pmax-1)) 48 #define DECDOUBLE_Ehigh (DECDOUBLE_Emax + DECDOUBLE_Bias - (DECDOUBLE_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 53
56 /* The decDouble decimal 64-bit type, accessible by various types */ 54 /* The decDouble decimal 64-bit type, accessible by all sizes */
57 typedef union { 55 typedef union {
58 uint8_t bytes[DECDOUBLE_Bytes]; /* fields: 1, 5, 8, 50 bits */ 56 uint8_t bytes[DECDOUBLE_Bytes]; /* fields: 1, 5, 8, 50 bits */
59 uint16_t shorts[DECDOUBLE_Bytes/2]; 57 uint16_t shorts[DECDOUBLE_Bytes/2];
60 uint32_t words[DECDOUBLE_Bytes/4]; 58 uint32_t words[DECDOUBLE_Bytes/4];
59 #if DECUSE64
60 uint64_t longs[DECDOUBLE_Bytes/8];
61 #endif
61 } decDouble; 62 } decDouble;
62 63
63 /* ---------------------------------------------------------------- */ 64 /* ---------------------------------------------------------------- */
64 /* Routines -- implemented as decFloat routines in common files */ 65 /* Routines -- implemented as decFloat routines in common files */
65 /* ---------------------------------------------------------------- */ 66 /* ---------------------------------------------------------------- */
68 69
69 /* Utilities and conversions, extractors, etc.) */ 70 /* Utilities and conversions, extractors, etc.) */
70 extern decDouble * decDoubleFromBCD(decDouble *, int32_t, const uint8_t *, int32_t); 71 extern decDouble * decDoubleFromBCD(decDouble *, int32_t, const uint8_t *, int32_t);
71 extern decDouble * decDoubleFromInt32(decDouble *, int32_t); 72 extern decDouble * decDoubleFromInt32(decDouble *, int32_t);
72 extern decDouble * decDoubleFromPacked(decDouble *, int32_t, const uint8_t *); 73 extern decDouble * decDoubleFromPacked(decDouble *, int32_t, const uint8_t *);
74 extern decDouble * decDoubleFromPackedChecked(decDouble *, int32_t, const uint8_t *);
73 extern decDouble * decDoubleFromString(decDouble *, const char *, decContext *); 75 extern decDouble * decDoubleFromString(decDouble *, const char *, decContext *);
74 extern decDouble * decDoubleFromUInt32(decDouble *, uint32_t); 76 extern decDouble * decDoubleFromUInt32(decDouble *, uint32_t);
75 extern decDouble * decDoubleFromWider(decDouble *, const decQuad *, decContext *); 77 extern decDouble * decDoubleFromWider(decDouble *, const decQuad *, decContext *);
76 extern int32_t decDoubleGetCoefficient(const decDouble *, uint8_t *); 78 extern int32_t decDoubleGetCoefficient(const decDouble *, uint8_t *);
77 extern int32_t decDoubleGetExponent(const decDouble *); 79 extern int32_t decDoubleGetExponent(const decDouble *);
153 extern uint32_t decDoubleSameQuantum(const decDouble *, const decDouble *); 155 extern uint32_t decDoubleSameQuantum(const decDouble *, const decDouble *);
154 extern const char * decDoubleVersion(void); 156 extern const char * decDoubleVersion(void);
155 157
156 /* decNumber conversions; these are implemented as macros so as not */ 158 /* decNumber conversions; these are implemented as macros so as not */
157 /* to force a dependency on decimal64 and decNumber in decDouble. */ 159 /* to force a dependency on decimal64 and decNumber in decDouble. */
160 /* decDoubleFromNumber returns a decimal64 * to avoid warnings. */
158 #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn) 161 #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn)
159 #define decDoubleFromNumber(dq, dn, set) (decDouble *)decimal64FromNumber((decimal64 *)(dq), dn, set) 162 #define decDoubleFromNumber(dq, dn, set) decimal64FromNumber((decimal64 *)(dq), dn, set)
160 163
161 #endif 164 #endif