[apple/libc.git] / gdtoa / FreeBSD / gdtoa-strtopdd.c.patch

--- gdtoa-strtopdd.c.orig	2005-01-20 20:12:37.000000000 -0800
+++ gdtoa-strtopdd.c	2005-02-17 01:34:59.000000000 -0800
@@ -29,13 +29,25 @@
 /* Please send bug reports to David M. Gay (dmg at acm dot org,
  * with " at " changed at "@" and " dot " changed to ".").	*/
 
+#include "xlocale_private.h"
+
 #include "gdtoaimp.h"
 
+#ifdef __APPLE__
+/*
+ * IEEE specifies that the most significant (head) double is required to
+ * be equal to the long double rounded to the nearest double, so that means
+ * the tail double might be the opposite sign as the head.  We can do this
+ * adding (long double)0 to the number, which will fix it up.
+ */
+#define	fixLDBL(x)	((x) += 0.L)
+#endif /* __APPLE__ */
+
  int
 #ifdef KR_headers
-strtopdd(s, sp, dd) CONST char *s; char **sp; double *dd;
+strtopdd(s, sp, dd, loc) CONST char *s; char **sp; double *dd; locale_t loc;
 #else
-strtopdd(CONST char *s, char **sp, double *dd)
+strtopdd(CONST char *s, char **sp, double *dd, locale_t loc)
 #endif
 {
 #ifdef Sudden_Underflow
@@ -49,10 +61,13 @@
 	typedef union {
 		double d[2];
 		ULong L[4];
+#ifdef __APPLE__
+		long double ld;
+#endif /* __APPLE__ */
 		} U;
 	U *u;
 
-	rv = strtodg(s, sp, &fpi, &exp, bits);
+	rv = strtodg(s, sp, &fpi, &exp, bits, loc);
 	u = (U*)dd;
 	switch(rv & STRTOG_Retmask) {
 	  case STRTOG_NoNumber:
@@ -101,6 +116,9 @@
 			}
 		u->L[2+_1] = bits[0];
 		u->L[2+_0] = bits[1] & 0xfffff | exp << 20;
+#ifdef __APPLE__
+		fixLDBL(u->ld);
+#endif /* __APPLE__ */
 		break;
 
 	  case STRTOG_Denormal:
@@ -124,6 +142,9 @@
 		u->L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL;
 		u->L[2+_0] = bits[1] & (1L << j) - 1;
 		u->L[2+_1] = bits[0];
+#ifdef __APPLE__
+		fixLDBL(u->ld);
+#endif /* __APPLE__ */
 		break;
 
 	  partly_normal:
@@ -135,6 +156,9 @@
 			u->L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL;
 			u->L[2+_0] = bits[1] & (1L << j) - 1;
 			u->L[2+_1] = bits[0];
+#ifdef __APPLE__
+			fixLDBL(u->ld);
+#endif /* __APPLE__ */
 			break;
 			}
 		if (i == 0) {
@@ -142,6 +166,9 @@
 			u->L[_1] = bits[1];
 			u->L[2+_0] = 0;
 			u->L[2+_1] = bits[0];
+#ifdef __APPLE__
+			fixLDBL(u->ld);
+#endif /* __APPLE__ */
 			break;
 			}
 		j = 32 - i;
@@ -150,6 +177,9 @@
 		u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
 		u->L[2+_0] = 0;
 		u->L[2+_1] = bits[0] & (1L << j) - 1;
+#ifdef __APPLE__
+		fixLDBL(u->ld);
+#endif /* __APPLE__ */
 		break;
 
 	  hardly_normal:
@@ -159,20 +189,38 @@
 		u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
 		u->L[2+_0] = 0;
 		u->L[2+_1] = bits[0] & (1L << j) - 1;
+#ifdef __APPLE__
+		fixLDBL(u->ld);
+#endif /* __APPLE__ */
 		break;
 
 	  case STRTOG_Infinite:
+#ifdef __APPLE__
+		u->L[_0] = 0x7ff00000;
+		u->L[_1] = u->L[2+_0] = u->L[2+_1] = 0;
+#else /* __APPLE__ */
 		u->L[_0] = u->L[2+_0] = 0x7ff00000;
 		u->L[_1] = u->L[2+_1] = 0;
+#endif /* __APPLE__ */
 		break;
 
 	  case STRTOG_NaN:
+#ifdef __APPLE__
+		u->L[_0] = 0x7fffffff;
+		u->L[_1] = (ULong)-1;
+		u->L[2+_0] = u->L[2+_1] = 0;
+#else /* __APPLE__ */
 		u->L[0] = u->L[2] = d_QNAN0;
 		u->L[1] = u->L[3] = d_QNAN1;
+#endif /* __APPLE__ */
 	  }
 	if (rv & STRTOG_Neg) {
 		u->L[  _0] |= 0x80000000L;
+#ifdef __APPLE__
+		u->L[2+_0] ^= 0x80000000L;
+#else /* __APPLE__ */
 		u->L[2+_0] |= 0x80000000L;
+#endif /* __APPLE__ */
 		}
 	return rv;
 	}
Commit	Line	Data
3d9156a7 A	1	--- gdtoa-strtopdd.c.orig 2005-01-20 20:12:37.000000000 -0800
	2	+++ gdtoa-strtopdd.c 2005-02-17 01:34:59.000000000 -0800
	3	@@ -29,13 +29,25 @@
	4	/* Please send bug reports to David M. Gay (dmg at acm dot org,
	5	* with " at " changed at "@" and " dot " changed to "."). */
	6
	7	+#include "xlocale_private.h"
	8	+
	9	#include "gdtoaimp.h"
	10
	11	+#ifdef __APPLE__
	12	+/*
	13	+ * IEEE specifies that the most significant (head) double is required to
	14	+ * be equal to the long double rounded to the nearest double, so that means
	15	+ * the tail double might be the opposite sign as the head. We can do this
	16	+ * adding (long double)0 to the number, which will fix it up.
	17	+ */
	18	+#define fixLDBL(x) ((x) += 0.L)
	19	+#endif /* __APPLE__ */
	20	+
	21	int
	22	#ifdef KR_headers
	23	-strtopdd(s, sp, dd) CONST char s; char sp; double dd;
	24	+strtopdd(s, sp, dd, loc) CONST char s; char sp; double dd; locale_t loc;
	25	#else
	26	-strtopdd(CONST char s, char sp, double dd)
	27	+strtopdd(CONST char s, char sp, double dd, locale_t loc)
	28	#endif
	29	{
	30	#ifdef Sudden_Underflow
	31	@@ -49,10 +61,13 @@
	32	typedef union {
	33	double d[2];
	34	ULong L[4];
	35	+#ifdef __APPLE__
	36	+ long double ld;
	37	+#endif /* __APPLE__ */
	38	} U;
	39	U *u;
	40
	41	- rv = strtodg(s, sp, &fpi, &exp, bits);
	42	+ rv = strtodg(s, sp, &fpi, &exp, bits, loc);
	43	u = (U*)dd;
	44	switch(rv & STRTOG_Retmask) {
	45	case STRTOG_NoNumber:
	46	@@ -101,6 +116,9 @@
	47	}
	48	u->L[2+_1] = bits[0];
	49	u->L[2+_0] = bits[1] & 0xfffff \| exp << 20;
	50	+#ifdef __APPLE__
	51	+ fixLDBL(u->ld);
	52	+#endif /* __APPLE__ */
	53	break;
	54
	55	case STRTOG_Denormal:
	56	@@ -124,6 +142,9 @@
	57	u->L[_1] = (bits[2] << i \| bits[1] >> j) & 0xffffffffL;
	58	u->L[2+_0] = bits[1] & (1L << j) - 1;
	59	u->L[2+_1] = bits[0];
	60	+#ifdef __APPLE__
	61	+ fixLDBL(u->ld);
	62	+#endif /* __APPLE__ */
	63	break;
	64
65	partly_normal:
66	@@ -135,6 +156,9 @@
67	u->L[_1] = (bits[2] << i \| bits[1] >> j) & 0xffffffffL;
68	u->L[2+_0] = bits[1] & (1L << j) - 1;
69	u->L[2+_1] = bits[0];
70	+#ifdef __APPLE__
71	+ fixLDBL(u->ld);
72	+#endif /* __APPLE__ */
73	break;
74	}
75	if (i == 0) {
76	@@ -142,6 +166,9 @@
77	u->L[_1] = bits[1];
78	u->L[2+_0] = 0;
79	u->L[2+_1] = bits[0];
80	+#ifdef __APPLE__
81	+ fixLDBL(u->ld);
82	+#endif /* __APPLE__ */
83	break;
84	}
85	j = 32 - i;
86	@@ -150,6 +177,9 @@
87	u->L[_1] = (bits[1] << i \| bits[0] >> j) & 0xffffffffL;
88	u->L[2+_0] = 0;
89	u->L[2+_1] = bits[0] & (1L << j) - 1;
90	+#ifdef __APPLE__
91	+ fixLDBL(u->ld);
92	+#endif /* __APPLE__ */
93	break;
94
95	hardly_normal:
96	@@ -159,20 +189,38 @@
97	u->L[_1] = (bits[1] << i \| bits[0] >> j) & 0xffffffffL;
98	u->L[2+_0] = 0;
99	u->L[2+_1] = bits[0] & (1L << j) - 1;
100	+#ifdef __APPLE__
101	+ fixLDBL(u->ld);
102	+#endif /* __APPLE__ */
103	break;
104
105	case STRTOG_Infinite:
106	+#ifdef __APPLE__
107	+ u->L[_0] = 0x7ff00000;
108	+ u->L[_1] = u->L[2+_0] = u->L[2+_1] = 0;
109	+#else /* __APPLE__ */
110	u->L[_0] = u->L[2+_0] = 0x7ff00000;
111	u->L[_1] = u->L[2+_1] = 0;
112	+#endif /* __APPLE__ */
113	break;
114
115	case STRTOG_NaN:
116	+#ifdef __APPLE__
117	+ u->L[_0] = 0x7fffffff;
118	+ u->L[_1] = (ULong)-1;
119	+ u->L[2+_0] = u->L[2+_1] = 0;
120	+#else /* __APPLE__ */
121	u->L[0] = u->L[2] = d_QNAN0;
122	u->L[1] = u->L[3] = d_QNAN1;
123	+#endif /* __APPLE__ */
124	}
125	if (rv & STRTOG_Neg) {
126	u->L[ _0] \|= 0x80000000L;
127	+#ifdef __APPLE__
128	+ u->L[2+_0] ^= 0x80000000L;
129	+#else /* __APPLE__ */
130	u->L[2+_0] \|= 0x80000000L;
131	+#endif /* __APPLE__ */
132	}
133	return rv;
134	}