math: cosmetic cleanup (use explicit union instead of fshape and dshape)

1 files changed, 5 insertions, 6 deletions

diff --git a/src/math/fabs.c b/src/math/fabs.c
index 6e28f1e5..e8258cfd 100644
--- a/src/math/fabs.c
+++ b/src/math/fabs.c
@@ -1,10 +1,9 @@
-#include "libm.h"
+#include <math.h>
+#include <stdint.h>
 
 double fabs(double x)
 {
-	union dshape u;
-
-	u.value = x;
-	u.bits &= (uint64_t)-1 / 2;
-	return u.value;
+	union {double f; uint64_t i;} u = {x};
+	u.i &= -1ULL/2;
+	return u.f;
 }