X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Fasin.c;h=c926b188552b20b1842a26e4c5500b2f0686a95f;hb=7396ef0a05b834bf92c4f268a3336c0bc10c3593;hp=3e8f99ed558fb8df591c662648e0ab38335fd182;hpb=e216951f509b71da193da2fc63e25b998740d58b;p=musl diff --git a/src/math/asin.c b/src/math/asin.c index 3e8f99ed..c926b188 100644 --- a/src/math/asin.c +++ b/src/math/asin.c @@ -82,11 +82,9 @@ double asin(double x) } /* |x| < 0.5 */ if (ix < 0x3fe00000) { - if (ix < 0x3e500000) { - /* |x|<0x1p-26, return x with inexact if x!=0*/ - FORCE_EVAL(x + 0x1p120f); + /* if 0x1p-1022 <= |x| < 0x1p-26, avoid raising underflow */ + if (ix < 0x3e500000 && ix >= 0x00100000) return x; - } return x + x*R(x*x); } /* 1 > |x| >= 0.5 */