1 files changed, 28 insertions, 0 deletions
diff --git a/test/float_lit3.go b/test/float_lit3.go
new file mode 100644
index 000000000..f045c40cf
--- /dev/null
+++ b/test/float_lit3.go
@@ -0,0 +1,28 @@
+// errorcheck
+
+// Check flagging of invalid conversion of constant to float32/float64 near min/max boundaries.
+
+// Copyright 2014 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+var x = []interface{}{
+	float32(-340282356779733661637539395458142568448), // ERROR "constant -3\.40282e\+38 overflows float32"
+	float32(-340282356779733661637539395458142568447),
+	float32(-340282326356119256160033759537265639424),
+	float32(340282326356119256160033759537265639424),
+	float32(340282356779733661637539395458142568447),
+	float32(340282356779733661637539395458142568448), // ERROR "constant 3\.40282e\+38 overflows float32"
+	-1e1000, // ERROR "constant -1\.00000e\+1000 overflows float64"
+	float64(-1.797693134862315907937289714053e+308), // ERROR "constant -1\.79769e\+308 overflows float64"
+	float64(-1.797693134862315807937289714053e+308),
+	float64(-1.797693134862315708145274237317e+308),
+	float64(-1.797693134862315608353258760581e+308),
+	float64(1.797693134862315608353258760581e+308),
+	float64(1.797693134862315708145274237317e+308),
+	float64(1.797693134862315807937289714053e+308),
+	float64(1.797693134862315907937289714053e+308), // ERROR "constant 1\.79769e\+308 overflows float64"
+	1e1000, // ERROR "constant 1\.00000e\+1000 overflows float64"
+}