From 73df946d56c74384511a194dd01dbe099584fd1a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:14:23 +0200 Subject: Adding upstream version 1.16.10. Signed-off-by: Daniel Baumann --- test/fixedbugs/bug447.go | 105 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 test/fixedbugs/bug447.go (limited to 'test/fixedbugs/bug447.go') diff --git a/test/fixedbugs/bug447.go b/test/fixedbugs/bug447.go new file mode 100644 index 0000000..8358f00 --- /dev/null +++ b/test/fixedbugs/bug447.go @@ -0,0 +1,105 @@ +// runoutput + +// Copyright 2012 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. + +// Issue 3804 +// test all possible float -> integer conversions + +package main + +import ( + "bytes" + "fmt" + "strings" +) + +var ( + intWidths = []int{8, 16, 32, 64} // int%d and uint%d + floatWidths = []int{32, 64} // float%d +) + +func main() { + + var names, funcs bytes.Buffer + + for _, iWidth := range intWidths { + for _, typ := range []string{"int", "uint"} { + var segs bytes.Buffer + itype := fmt.Sprintf("%s%d", typ, iWidth) + names.WriteString("\ttest" + itype + ",\n") + for _, fWidth := range floatWidths { + ftype := fmt.Sprintf("float%d", fWidth) + seg := strings.Replace(testSegment, "$F", ftype, -1) + seg = strings.Replace(seg, "$I", itype, -1) + segs.WriteString(seg) + } + body := strings.Replace(testFunc, "$I", itype, -1) + if typ[0] == 'u' { + body = strings.Replace(body, "$TEST", " || i < 0", 1) + } else { + body = strings.Replace(body, "$TEST", "", 1) + } + body = strings.Replace(body, "$TESTSEGMENTS", segs.String(), 1) + funcs.WriteString(body) + } + } + + program = strings.Replace(program, "$NAMES", names.String(), 1) + program = strings.Replace(program, "$FUNCS", funcs.String(), 1) + fmt.Print(program) +} + +const testSegment = ` + f$F := $F(f) + if math.Abs(float64(f$F) - f) < 0.05 { + if v := $I(f$F); v != $I(i) { + fmt.Printf("$I($F(%f)) = %v, expected %v\n", f, v, i) + } + }` + +const testFunc = +`func test$I(f float64, i int64) { + if i != int64($I(i))$TEST { + return + } +$TESTSEGMENTS +} +` + +var program = +`package main + +import ( + "fmt" + "math" +) + +var tests = []struct { + f float64 + i int64 +}{ + {39.7, 39}, + {-39.7, -39}, + {258.6, 258}, + {-258.6, -258}, + {65538.9, 65538}, + {-65538.9, -65538}, + {4294967298.8, 4294967298}, + {-4294967298.8, -4294967298}, +} + +var funcs = []func(float64, int64){ +$NAMES +} + +$FUNCS +func main() { + for _, t := range tests { + for _, f := range funcs { + f(t.f, t.i) + } + } +} +` -- cgit v1.2.3