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math: ld80 invtrig cleanups

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keeping only commonly used data in invtrigl
This commit is contained in:
Szabolcs Nagy
2012-11-14 01:01:38 +01:00
parent 529a8de46c
commit 45ff9d8eb6
8 changed files with 87 additions and 110 deletions
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9
src/math/acosl.c
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@ -23,9 +23,7 @@ long double acosl(long double x)
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#include "__invtrigl.h"
static const long double
pi = 3.14159265358979323846264338327950280e+00L;
#define ACOS_CONST (BIAS - 65) /* 2**-65 */
long double acosl(long double x)
{
@ -41,7 +39,8 @@ long double acosl(long double x)
if (expsign > 0)
return 0.0; /* acos(1) = 0 */
else
return pi + 2.0 * pio2_lo; /* acos(-1)= pi */
// FIXME
return pi_hi + 2.0 * pio2_lo; /* acos(-1)= pi */
}
return (x - x) / (x - x); /* acos(|x|>1) is NaN */
}
@ -60,7 +59,7 @@ long double acosl(long double x)
s = sqrtl(z);
r = p / q;
w = r * s - pio2_lo;
return pi - 2.0 * (s + w);
return pi_hi - 2.0 * (s + w);
} else { /* x > 0.5 */
z = (1.0 - x) * 0.5;
s = sqrtl(z);