add FORCE_EVAL macro to evaluate float expr for their side effect

[musl] / src / math / nexttoward.c

diff --git a/src/math/nexttoward.c b/src/math/nexttoward.c
index 43f8fee..7355f2f 100644 (file)
--- a/src/math/nexttoward.c
+++ b/src/math/nexttoward.c
@@ -38,10 +38,8 @@ double nexttoward(double x, long double y)
        if (e == 0x7ff)
                return x + x;
        /* raise underflow if ux.value is subnormal or zero */
-       if (e == 0) {
-               volatile float z;
-               z = x*x + ux.value*ux.value;
-       }
+       if (e == 0)
+               FORCE_EVAL(x*x + ux.value*ux.value);
        return ux.value;
 }
 #endif