[mcs] Do underlying float constant operation on double values. Fixes #15463

1 files changed, 42 insertions, 0 deletions

diff --git a/mcs/tests/test-885.cs b/mcs/tests/test-885.cs
new file mode 100644
index 00000000000..2bd07100606
--- /dev/null
+++ b/mcs/tests/test-885.cs
@@ -0,0 +1,42 @@
+using System;
+using System.Reflection;
+
+[AttributeUsage(System.AttributeTargets.All)]
+class A : Attribute
+{
+	public double D;
+
+	public A (double d)
+	{
+		this.D = d;
+	}
+}
+
+
+class C
+{
+	[A (0.7f * 100.0f)]
+	static int Main ()
+	{
+		if ((int) (0.7f * 100.0f) != 69)
+			return 1;
+
+		if ((double) (0.7f * 100.0f) != 69.9999988079071)
+			return 2;
+
+		if (!Foo (0.7f * 100.0f))
+			return 3;
+
+		A attr = (A)MethodBase.GetCurrentMethod ().GetCustomAttributes (false) [0];
+		if (attr.D != 69.9999988079071)
+			return 4;
+
+		Console.WriteLine ("ok");
+		return 0;
+	}
+
+	static bool Foo (double d)
+	{
+		return d == 69.9999988079071;
+	}
+}
\ No newline at end of file