1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
diff --git a/math/libm-test.inc b/math/libm-test.inc
index c8186c8..1016753 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -4632,6 +4632,29 @@ nearbyint_test (void)
TEST_f_f (nearbyint, 524286.75, 524287.0);
TEST_f_f (nearbyint, 524288.75, 524289.0);
+ TEST_f_f (nearbyint, 1048576.75, 1048577.0);
+ TEST_f_f (nearbyint, 2097152.75, 2097153.0);
+ TEST_f_f (nearbyint, 2492472.75, 2492473.0);
+ TEST_f_f (nearbyint, 2886220.75, 2886221.0);
+ TEST_f_f (nearbyint, 3058792.75, 3058793.0);
+ TEST_f_f (nearbyint, -1048576.75, -1048577.0);
+ TEST_f_f (nearbyint, -2097152.75, -2097153.0);
+ TEST_f_f (nearbyint, -2492472.75, -2492473.0);
+ TEST_f_f (nearbyint, -2886220.75, -2886221.0);
+ TEST_f_f (nearbyint, -3058792.75, -3058793.0);
+#ifndef TEST_FLOAT
+ TEST_f_f (nearbyint, 70368744177664.75, 70368744177665.0);
+ TEST_f_f (nearbyint, 140737488355328.75, 140737488355329.0);
+ TEST_f_f (nearbyint, 281474976710656.75, 281474976710657.0);
+ TEST_f_f (nearbyint, 562949953421312.75, 562949953421313.0);
+ TEST_f_f (nearbyint, 1125899906842624.75, 1125899906842625.0);
+ TEST_f_f (nearbyint, -70368744177664.75, -70368744177665.0);
+ TEST_f_f (nearbyint, -140737488355328.75, -140737488355329.0);
+ TEST_f_f (nearbyint, -281474976710656.75, -281474976710657.0);
+ TEST_f_f (nearbyint, -562949953421312.75, -562949953421313.0);
+ TEST_f_f (nearbyint, -1125899906842624.75, -1125899906842625.0);
+#endif
+
END (nearbyint);
}
diff --git a/sysdeps/ieee754/flt-32/s_nearbyintf.c b/sysdeps/ieee754/flt-32/s_nearbyintf.c
index 04ef9ab..a6d602b 100644
--- a/sysdeps/ieee754/flt-32/s_nearbyintf.c
+++ b/sysdeps/ieee754/flt-32/s_nearbyintf.c
@@ -30,18 +30,12 @@ __nearbyintf(float x)
{
fenv_t env;
int32_t i0,j0,sx;
- u_int32_t i,i1;
float w,t;
GET_FLOAT_WORD(i0,x);
sx = (i0>>31)&1;
j0 = ((i0>>23)&0xff)-0x7f;
if(j0<23) {
if(j0<0) {
- if((i0&0x7fffffff)==0) return x;
- i1 = (i0&0x07fffff);
- i0 &= 0xfff00000;
- i0 |= ((i1|-i1)>>9)&0x400000;
- SET_FLOAT_WORD(x,i0);
libc_feholdexceptf (&env);
w = TWO23[sx]+x;
t = w-TWO23[sx];
@@ -49,17 +43,11 @@ __nearbyintf(float x)
GET_FLOAT_WORD(i0,t);
SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
return t;
- } else {
- i = (0x007fffff)>>j0;
- if((i0&i)==0) return x; /* x is integral */
- i>>=1;
- if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0);
}
} else {
if(__builtin_expect(j0==0x80, 0)) return x+x; /* inf or NaN */
else return x; /* x is integral */
}
- SET_FLOAT_WORD(x,i0);
libc_feholdexceptf (&env);
w = TWO23[sx]+x;
t = w-TWO23[sx];
|
