1 files changed, 11 insertions, 6 deletions
diff --git a/stdlib/tst-strtod.c b/stdlib/tst-strtod.c
index e2c6734e56..b9158c11f9 100644
--- a/stdlib/tst-strtod.c
+++ b/stdlib/tst-strtod.c
@@ -114,12 +114,17 @@ expand (dst, c)
 static int
 long_dbl (void)
 {
-  const char longestdbl[] =
-    "179769313486231570814527423731704356798070567525844996598917476"
-    "803157260780028538760589558632766878171540458953514382464234321"
-    "326889464182768467546703537516986049910576551282076245490090389"
-    "328944075868508455133942304583236903222948165808559332123348274"
-    "797826204144723168738177180919299881250404026184124858368";
+  /* Regenerate this string using
+
+     echo '(2^53-1)*2^(1024-53)' | bc | sed 's/\([^\]*\)\\*$/    "\1"/'
+
+  */
+  static const char longestdbl[] =
+    "17976931348623157081452742373170435679807056752584499659891747680315"
+    "72607800285387605895586327668781715404589535143824642343213268894641"
+    "82768467546703537516986049910576551282076245490090389328944075868508"
+    "45513394230458323690322294816580855933212334827479782620414472316873"
+    "8177180919299881250404026184124858368";
   double d = strtod (longestdbl, NULL);
 
   printf ("strtod (\"%s\", NULL) = %g\n", longestdbl, d);