musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/math/modfl.c b/src/math/modfl.c
index 6520a1c2..f6d62444 100644
--- a/src/math/modfl.c
+++ b/src/math/modfl.c

@@ -81,7 +81,7 @@ long double modfl(long double x, long double *iptr)

return x - ux.e;

} else if (e >= LDBL_MANT_DIG - 1) { /* x has no fraction part. */

*iptr = x;

- if (e == LDBL_MAX_EXP && (ux.bits.manh|ux.bits.manl)) /* nan */

+ if (e == LDBL_MAX_EXP && ((ux.bits.manh&~LDBL_NBIT)|ux.bits.manl)) /* nan */

return x;

return zero[ux.bits.sign];

} else { /* Fraction part is in manl. */