diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/go.test/test/floatcmp.go')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/go.test/test/floatcmp.go | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/go.test/test/floatcmp.go b/gcc-4.9/gcc/testsuite/go.test/test/floatcmp.go new file mode 100644 index 000000000..6c424ccd9 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/go.test/test/floatcmp.go @@ -0,0 +1,93 @@ +// run + +// Copyright 2009 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. + +// Test floating-point comparison involving NaN. + +package main + +import "math" + +type floatTest struct { + name string + expr bool + want bool +} + +var nan float64 = math.NaN() +var f float64 = 1 + +var tests = []floatTest{ + floatTest{"nan == nan", nan == nan, false}, + floatTest{"nan != nan", nan != nan, true}, + floatTest{"nan < nan", nan < nan, false}, + floatTest{"nan > nan", nan > nan, false}, + floatTest{"nan <= nan", nan <= nan, false}, + floatTest{"nan >= nan", nan >= nan, false}, + floatTest{"f == nan", f == nan, false}, + floatTest{"f != nan", f != nan, true}, + floatTest{"f < nan", f < nan, false}, + floatTest{"f > nan", f > nan, false}, + floatTest{"f <= nan", f <= nan, false}, + floatTest{"f >= nan", f >= nan, false}, + floatTest{"nan == f", nan == f, false}, + floatTest{"nan != f", nan != f, true}, + floatTest{"nan < f", nan < f, false}, + floatTest{"nan > f", nan > f, false}, + floatTest{"nan <= f", nan <= f, false}, + floatTest{"nan >= f", nan >= f, false}, + floatTest{"!(nan == nan)", !(nan == nan), true}, + floatTest{"!(nan != nan)", !(nan != nan), false}, + floatTest{"!(nan < nan)", !(nan < nan), true}, + floatTest{"!(nan > nan)", !(nan > nan), true}, + floatTest{"!(nan <= nan)", !(nan <= nan), true}, + floatTest{"!(nan >= nan)", !(nan >= nan), true}, + floatTest{"!(f == nan)", !(f == nan), true}, + floatTest{"!(f != nan)", !(f != nan), false}, + floatTest{"!(f < nan)", !(f < nan), true}, + floatTest{"!(f > nan)", !(f > nan), true}, + floatTest{"!(f <= nan)", !(f <= nan), true}, + floatTest{"!(f >= nan)", !(f >= nan), true}, + floatTest{"!(nan == f)", !(nan == f), true}, + floatTest{"!(nan != f)", !(nan != f), false}, + floatTest{"!(nan < f)", !(nan < f), true}, + floatTest{"!(nan > f)", !(nan > f), true}, + floatTest{"!(nan <= f)", !(nan <= f), true}, + floatTest{"!(nan >= f)", !(nan >= f), true}, + floatTest{"!!(nan == nan)", !!(nan == nan), false}, + floatTest{"!!(nan != nan)", !!(nan != nan), true}, + floatTest{"!!(nan < nan)", !!(nan < nan), false}, + floatTest{"!!(nan > nan)", !!(nan > nan), false}, + floatTest{"!!(nan <= nan)", !!(nan <= nan), false}, + floatTest{"!!(nan >= nan)", !!(nan >= nan), false}, + floatTest{"!!(f == nan)", !!(f == nan), false}, + floatTest{"!!(f != nan)", !!(f != nan), true}, + floatTest{"!!(f < nan)", !!(f < nan), false}, + floatTest{"!!(f > nan)", !!(f > nan), false}, + floatTest{"!!(f <= nan)", !!(f <= nan), false}, + floatTest{"!!(f >= nan)", !!(f >= nan), false}, + floatTest{"!!(nan == f)", !!(nan == f), false}, + floatTest{"!!(nan != f)", !!(nan != f), true}, + floatTest{"!!(nan < f)", !!(nan < f), false}, + floatTest{"!!(nan > f)", !!(nan > f), false}, + floatTest{"!!(nan <= f)", !!(nan <= f), false}, + floatTest{"!!(nan >= f)", !!(nan >= f), false}, +} + +func main() { + bad := false + for _, t := range tests { + if t.expr != t.want { + if !bad { + bad = true + println("BUG: floatcmp") + } + println(t.name, "=", t.expr, "want", t.want) + } + } + if bad { + panic("floatcmp failed") + } +} |