1 files changed, 10 insertions, 11 deletions
diff --git a/newlib/libm/mathfp/s_frexp.c b/newlib/libm/mathfp/s_frexp.c
index 54fa336c8..08611e9a7 100644
--- a/newlib/libm/mathfp/s_frexp.c
+++ b/newlib/libm/mathfp/s_frexp.c
@@ -82,17 +82,6 @@ double frexp (double d, int *exp)
   double f;
   __uint32_t hd, ld, hf, lf;
 
-  /* Check for special values. */
-  switch (numtest (d))
-    {
-      case NAN:
-      case INF:
-        errno = EDOM;
-      case 0:
-        *exp = 0;
-        return (d);
-    }
-
   EXTRACT_WORDS (hd, ld, d);
 
   /* Get the exponent. */
@@ -105,6 +94,16 @@ double frexp (double d, int *exp)
 
   INSERT_WORDS (f, hf, lf);
 
+  /* Check for special values. */
+  switch (numtest (f))
+    {
+      case NAN:
+      case INF:
+        errno = EDOM;
+        *exp = 0;
+        return (f);
+    }
+
   return (f);
 }