7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
182 lines
4.7 KiB
Go
182 lines
4.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package strconv_test
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import (
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"os"
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"reflect"
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. "strconv"
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"testing"
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)
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type atofTest struct {
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in string
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out string
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err os.Error
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}
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var atoftests = []atofTest{
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{"", "0", os.EINVAL},
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{"1", "1", nil},
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{"+1", "1", nil},
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{"1x", "0", os.EINVAL},
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{"1.1.", "0", os.EINVAL},
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{"1e23", "1e+23", nil},
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{"100000000000000000000000", "1e+23", nil},
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{"1e-100", "1e-100", nil},
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{"123456700", "1.234567e+08", nil},
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{"99999999999999974834176", "9.999999999999997e+22", nil},
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{"100000000000000000000001", "1.0000000000000001e+23", nil},
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{"100000000000000008388608", "1.0000000000000001e+23", nil},
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{"100000000000000016777215", "1.0000000000000001e+23", nil},
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{"100000000000000016777216", "1.0000000000000003e+23", nil},
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{"-1", "-1", nil},
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{"-0", "-0", nil},
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{"1e-20", "1e-20", nil},
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{"625e-3", "0.625", nil},
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// largest float64
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{"1.7976931348623157e308", "1.7976931348623157e+308", nil},
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{"-1.7976931348623157e308", "-1.7976931348623157e+308", nil},
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// next float64 - too large
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{"1.7976931348623159e308", "+Inf", os.ERANGE},
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{"-1.7976931348623159e308", "-Inf", os.ERANGE},
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// the border is ...158079
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// borderline - okay
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{"1.7976931348623158e308", "1.7976931348623157e+308", nil},
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{"-1.7976931348623158e308", "-1.7976931348623157e+308", nil},
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// borderline - too large
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{"1.797693134862315808e308", "+Inf", os.ERANGE},
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{"-1.797693134862315808e308", "-Inf", os.ERANGE},
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// a little too large
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{"1e308", "1e+308", nil},
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{"2e308", "+Inf", os.ERANGE},
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{"1e309", "+Inf", os.ERANGE},
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// way too large
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{"1e310", "+Inf", os.ERANGE},
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{"-1e310", "-Inf", os.ERANGE},
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{"1e400", "+Inf", os.ERANGE},
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{"-1e400", "-Inf", os.ERANGE},
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{"1e400000", "+Inf", os.ERANGE},
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{"-1e400000", "-Inf", os.ERANGE},
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// denormalized
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{"1e-305", "1e-305", nil},
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{"1e-306", "1e-306", nil},
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{"1e-307", "1e-307", nil},
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{"1e-308", "1e-308", nil},
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{"1e-309", "1e-309", nil},
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{"1e-310", "1e-310", nil},
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{"1e-322", "1e-322", nil},
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// smallest denormal
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{"5e-324", "5e-324", nil},
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{"4e-324", "5e-324", nil},
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{"3e-324", "5e-324", nil},
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// too small
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{"2e-324", "0", nil},
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// way too small
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{"1e-350", "0", nil},
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{"1e-400000", "0", nil},
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// try to overflow exponent
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{"1e-4294967296", "0", nil},
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{"1e+4294967296", "+Inf", os.ERANGE},
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{"1e-18446744073709551616", "0", nil},
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{"1e+18446744073709551616", "+Inf", os.ERANGE},
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// Parse errors
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{"1e", "0", os.EINVAL},
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{"1e-", "0", os.EINVAL},
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{".e-1", "0", os.EINVAL},
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}
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func init() {
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// The atof routines return NumErrors wrapping
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// the error and the string. Convert the table above.
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for i := range atoftests {
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test := &atoftests[i]
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if test.err != nil {
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test.err = &NumError{test.in, test.err}
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}
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}
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}
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func testAtof(t *testing.T, opt bool) {
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oldopt := SetOptimize(opt)
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for i := 0; i < len(atoftests); i++ {
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test := &atoftests[i]
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out, err := Atof64(test.in)
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outs := Ftoa64(out, 'g', -1)
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if outs != test.out || !reflect.DeepEqual(err, test.err) {
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t.Errorf("Atof64(%v) = %v, %v want %v, %v",
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test.in, out, err, test.out, test.err)
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}
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out, err = AtofN(test.in, 64)
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outs = FtoaN(out, 'g', -1, 64)
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if outs != test.out || !reflect.DeepEqual(err, test.err) {
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t.Errorf("AtofN(%v, 64) = %v, %v want %v, %v",
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test.in, out, err, test.out, test.err)
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}
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if float64(float32(out)) == out {
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out32, err := Atof32(test.in)
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outs := Ftoa32(out32, 'g', -1)
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if outs != test.out || !reflect.DeepEqual(err, test.err) {
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t.Errorf("Atof32(%v) = %v, %v want %v, %v # %v",
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test.in, out32, err, test.out, test.err, out)
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}
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out, err := AtofN(test.in, 32)
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out32 = float32(out)
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outs = FtoaN(float64(out32), 'g', -1, 32)
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if outs != test.out || !reflect.DeepEqual(err, test.err) {
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t.Errorf("AtofN(%v, 32) = %v, %v want %v, %v # %v",
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test.in, out32, err, test.out, test.err, out)
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}
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}
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if FloatSize == 64 || float64(float32(out)) == out {
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outf, err := Atof(test.in)
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outs := Ftoa(outf, 'g', -1)
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if outs != test.out || !reflect.DeepEqual(err, test.err) {
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t.Errorf("Ftoa(%v) = %v, %v want %v, %v # %v",
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test.in, outf, err, test.out, test.err, out)
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}
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}
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}
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SetOptimize(oldopt)
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}
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func TestAtof(t *testing.T) { testAtof(t, true) }
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func TestAtofSlow(t *testing.T) { testAtof(t, false) }
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func BenchmarkAtofDecimal(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Atof("33909")
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}
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}
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func BenchmarkAtofFloat(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Atof("339.7784")
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}
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}
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func BenchmarkAtofFloatExp(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Atof("-5.09e75")
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}
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}
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func BenchmarkAtofBig(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Atof("123456789123456789123456789")
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}
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}
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