Set failbit when strtold sets errno to ERANGE when parsing floating point values.

llvm-svn: 179461

1 files changed, 48 insertions, 0 deletions

diff --git a/libcxx/test/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long_double.pass.cpp b/libcxx/test/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long_double.pass.cpp
index 673f8dcce06..078ef018212 100644
--- a/libcxx/test/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long_double.pass.cpp
+++ b/libcxx/test/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long_double.pass.cpp
@@ -168,4 +168,52 @@ int main()
         assert(err == ios.goodbit);
         assert(std::isnan(v));
     }
+    {
+        const char str[] = "1.189731495357231765021264e+49321";
+        std::ios_base::iostate err = ios.goodbit;
+        v = 0;
+        input_iterator<const char*> iter =
+            f.get(input_iterator<const char*>(str),
+                  input_iterator<const char*>(str+sizeof(str)),
+                  ios, err, v);
+        assert(iter.base() == str+sizeof(str)-1);
+        assert(err == ios.failbit);
+        assert(v == INFINITY);
+    }
+    {
+        const char str[] = "1.189731495357231765021264e+49329";
+        std::ios_base::iostate err = ios.goodbit;
+        v = 0;
+        input_iterator<const char*> iter =
+            f.get(input_iterator<const char*>(str),
+                  input_iterator<const char*>(str+sizeof(str)),
+                  ios, err, v);
+        assert(iter.base() == str+sizeof(str)-1);
+        assert(err == ios.failbit);
+        assert(v == INFINITY);
+    }
+    {
+        const char str[] = "11.189731495357231765021264e+4932";
+        std::ios_base::iostate err = ios.goodbit;
+        v = 0;
+        input_iterator<const char*> iter =
+            f.get(input_iterator<const char*>(str),
+                  input_iterator<const char*>(str+sizeof(str)),
+                  ios, err, v);
+        assert(iter.base() == str+sizeof(str)-1);
+        assert(err == ios.failbit);
+        assert(v == INFINITY);
+    }
+    {
+        const char str[] = "91.189731495357231765021264e+4932";
+        std::ios_base::iostate err = ios.goodbit;
+        v = 0;
+        input_iterator<const char*> iter =
+            f.get(input_iterator<const char*>(str),
+                  input_iterator<const char*>(str+sizeof(str)),
+                  ios, err, v);
+        assert(iter.base() == str+sizeof(str)-1);
+        assert(err == ios.failbit);
+        assert(v == INFINITY);
+    }
 }