fix broken ttyname[_r] (failure to null-terminate result)

[musl] / src / math / acosl.c

diff --git a/src/math/acosl.c b/src/math/acosl.c
index 21e6c95..cc56533 100644 (file)
--- a/src/math/acosl.c
+++ b/src/math/acosl.c
@@ -24,21 +24,8 @@ 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
-one = 1.00000000000000000000e+00;
-
-// FIXME
-//#ifdef __i386__
-/* XXX Work around the fact that gcc truncates long double constants on i386 */
-static volatile double
-pi1 = 3.14159265358979311600e+00, /* 0x1.921fb54442d18p+1 */
-pi2 = 1.22514845490862001043e-16; /* 0x1.1a80000000000p-53 */
-#define pi ((long double)pi1 + pi2)
-//#else
-#if 0
 static const long double
 pi = 3.14159265358979323846264338327950280e+00L;
-#endif
 
 long double acosl(long double x)
 {
@@ -67,7 +54,7 @@ long double acosl(long double x)
                r = p / q;
                return pio2_hi - (x - (pio2_lo - x * r));
        } else if (expsign < 0) {  /* x < -0.5 */
-               z = (one + x) * 0.5;
+               z = (1.0 + x) * 0.5;
                p = P(z);
                q = Q(z);
                s = sqrtl(z);
@@ -75,7 +62,7 @@ long double acosl(long double x)
                w = r * s - pio2_lo;
                return pi - 2.0 * (s + w);
        } else {                   /* x > 0.5 */
-               z = (one - x) * 0.5;
+               z = (1.0 - x) * 0.5;
                s = sqrtl(z);
                u.e = s;
                u.bits.manl = 0;