diff options
Diffstat (limited to 'src/math/atan2l.c')
| -rw-r--r-- | src/math/atan2l.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/math/atan2l.c b/src/math/atan2l.c index e86dbffb..7cb42c2f 100644 --- a/src/math/atan2l.c +++ b/src/math/atan2l.c @@ -52,39 +52,39 @@ long double atan2l(long double y, long double x) switch(m) { case 0: case 1: return y; /* atan(+-0,+anything)=+-0 */ - case 2: return 2*pio2_hi+0x1p-1000; /* atan(+0,-anything) = pi */ - case 3: return -2*pio2_hi-0x1p-1000; /* atan(-0,-anything) =-pi */ + case 2: return 2*pio2_hi+0x1p-120f; /* atan(+0,-anything) = pi */ + case 3: return -2*pio2_hi-0x1p-120f; /* atan(-0,-anything) =-pi */ } } /* when x = 0 */ if (exptx==0 && ((ux.bits.manh&~LDBL_NBIT)|ux.bits.manl)==0) - return expsigny < 0 ? -pio2_hi-0x1p-1000 : pio2_hi+0x1p-1000; + return expsigny < 0 ? -pio2_hi-0x1p-120f : pio2_hi+0x1p-120f; /* when x is INF */ if (exptx == 0x7fff) { if (expty == 0x7fff) { switch(m) { - case 0: return pio2_hi*0.5+0x1p-1000; /* atan(+INF,+INF) */ - case 1: return -pio2_hi*0.5-0x1p-1000; /* atan(-INF,+INF) */ - case 2: return 1.5*pio2_hi+0x1p-1000; /* atan(+INF,-INF) */ - case 3: return -1.5*pio2_hi-0x1p-1000; /* atan(-INF,-INF) */ + case 0: return pio2_hi*0.5+0x1p-120f; /* atan(+INF,+INF) */ + case 1: return -pio2_hi*0.5-0x1p-120f; /* atan(-INF,+INF) */ + case 2: return 1.5*pio2_hi+0x1p-120f; /* atan(+INF,-INF) */ + case 3: return -1.5*pio2_hi-0x1p-120f; /* atan(-INF,-INF) */ } } else { switch(m) { case 0: return 0.0; /* atan(+...,+INF) */ case 1: return -0.0; /* atan(-...,+INF) */ - case 2: return 2*pio2_hi+0x1p-1000; /* atan(+...,-INF) */ - case 3: return -2*pio2_hi-0x1p-1000; /* atan(-...,-INF) */ + case 2: return 2*pio2_hi+0x1p-120f; /* atan(+...,-INF) */ + case 3: return -2*pio2_hi-0x1p-120f; /* atan(-...,-INF) */ } } } /* when y is INF */ if (expty == 0x7fff) - return expsigny < 0 ? -pio2_hi-0x1p-1000 : pio2_hi+0x1p-1000; + return expsigny < 0 ? -pio2_hi-0x1p-120f : pio2_hi+0x1p-120f; /* compute y/x */ k = expty-exptx; if(k > LDBL_MANT_DIG+2) { /* |y/x| huge */ - z = pio2_hi+0x1p-1000; + z = pio2_hi+0x1p-120f; m &= 1; } else if (expsignx < 0 && k < -LDBL_MANT_DIG-2) /* |y/x| tiny, x<0 */ z = 0.0; |