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-rw-r--r--stdio-common/tstdiomisc.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/stdio-common/tstdiomisc.c b/stdio-common/tstdiomisc.c
index db038fa2b0..452a21f9cb 100644
--- a/stdio-common/tstdiomisc.c
+++ b/stdio-common/tstdiomisc.c
@@ -46,9 +46,6 @@ t2 (void)
   return result;
 }
 
-volatile double nanval;
-
-
 static int
 F (void)
 {
@@ -56,9 +53,8 @@ F (void)
   wchar_t wbuf[10];
   int result;
 
-  nanval = NAN;
-
-  snprintf (buf, sizeof buf, "%f %F", nanval, nanval);
+  snprintf (buf, sizeof buf, "%f %F", DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX,
+	    DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX);
   result = strcmp (buf, "nan NAN") != 0;
   printf ("expected \"nan NAN\", got \"%s\"\n", buf);
 
@@ -66,7 +62,9 @@ F (void)
   result |= strcmp (buf, "inf INF") != 0;
   printf ("expected \"inf INF\", got \"%s\"\n", buf);
 
-  swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%f %F", nanval, nanval);
+  swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%f %F",
+	    DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX,
+	    DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX);
   result |= wcscmp (wbuf, L"nan NAN") != 0;
   printf ("expected L\"nan NAN\", got L\"%S\"\n", wbuf);