1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/dfp/compare-eq-const.c b/gcc-4.9/gcc/testsuite/c-c++-common/dfp/compare-eq-const.c
new file mode 100644
index 000000000..0c9ff200b
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/c-c++-common/dfp/compare-eq-const.c
@@ -0,0 +1,28 @@
+/* C99 6.5.9 Equality operators.
+   Compare decimal float constants against each other. */
+
+#include "dfp-dbg.h"
+
+extern void link_error (void);
+
+int
+main ()
+{
+  /* Compare like-typed positive constants. */
+  if (2.0df != 2.0df)
+    link_error ();
+
+  /* Compare decimal float constants of different types. */
+  if (500e-2dl != 0.05e2df)
+    link_error ();
+
+  /* Binary floating point introduces errors to decimal values. */
+  if (1.4 + 1.4 + 1.4 == 4.2)
+    link_error ();
+
+  /* But, this looks more like what one would expect. */
+  if (1.4dd + 1.4dd + 1.4dd != 4.2dd)
+    link_error ();
+
+  FINISH
+}