math: raise invalid flag in ilogb*.c on +-0, +-inf and nan

[musl] / src / math / __log1pf.h

diff --git a/src/math/__log1pf.h b/src/math/__log1pf.h
index 110acec..99492c5 100644 (file)
--- a/src/math/__log1pf.h
+++ b/src/math/__log1pf.h
@@ -24,12 +24,12 @@ static inline float __log1pf(float f)
 {
        float hfsq,s,z,R,w,t1,t2;
 
-       s = f/((float)2.0+f);
+       s = f/(2.0f + f);
        z = s*s;
        w = z*z;
        t1 = w*(Lg2+w*Lg4);
        t2 = z*(Lg1+w*Lg3);
        R = t2+t1;
-       hfsq = (float)0.5*f*f;
+       hfsq = 0.5f * f * f;
        return s*(hfsq+R);
 }