summaryrefslogtreecommitdiffstats
path: root/src/strconv/atoi_test.go
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/strconv/atoi_test.go675
1 files changed, 675 insertions, 0 deletions
diff --git a/src/strconv/atoi_test.go b/src/strconv/atoi_test.go
new file mode 100644
index 0000000..867fa66
--- /dev/null
+++ b/src/strconv/atoi_test.go
@@ -0,0 +1,675 @@
+// 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.
+
+package strconv_test
+
+import (
+ "errors"
+ "fmt"
+ "reflect"
+ . "strconv"
+ "testing"
+)
+
+type parseUint64Test struct {
+ in string
+ out uint64
+ err error
+}
+
+var parseUint64Tests = []parseUint64Test{
+ {"", 0, ErrSyntax},
+ {"0", 0, nil},
+ {"1", 1, nil},
+ {"12345", 12345, nil},
+ {"012345", 12345, nil},
+ {"12345x", 0, ErrSyntax},
+ {"98765432100", 98765432100, nil},
+ {"18446744073709551615", 1<<64 - 1, nil},
+ {"18446744073709551616", 1<<64 - 1, ErrRange},
+ {"18446744073709551620", 1<<64 - 1, ErrRange},
+ {"1_2_3_4_5", 0, ErrSyntax}, // base=10 so no underscores allowed
+ {"_12345", 0, ErrSyntax},
+ {"1__2345", 0, ErrSyntax},
+ {"12345_", 0, ErrSyntax},
+ {"-0", 0, ErrSyntax},
+ {"-1", 0, ErrSyntax},
+ {"+1", 0, ErrSyntax},
+}
+
+type parseUint64BaseTest struct {
+ in string
+ base int
+ out uint64
+ err error
+}
+
+var parseUint64BaseTests = []parseUint64BaseTest{
+ {"", 0, 0, ErrSyntax},
+ {"0", 0, 0, nil},
+ {"0x", 0, 0, ErrSyntax},
+ {"0X", 0, 0, ErrSyntax},
+ {"1", 0, 1, nil},
+ {"12345", 0, 12345, nil},
+ {"012345", 0, 012345, nil},
+ {"0x12345", 0, 0x12345, nil},
+ {"0X12345", 0, 0x12345, nil},
+ {"12345x", 0, 0, ErrSyntax},
+ {"0xabcdefg123", 0, 0, ErrSyntax},
+ {"123456789abc", 0, 0, ErrSyntax},
+ {"98765432100", 0, 98765432100, nil},
+ {"18446744073709551615", 0, 1<<64 - 1, nil},
+ {"18446744073709551616", 0, 1<<64 - 1, ErrRange},
+ {"18446744073709551620", 0, 1<<64 - 1, ErrRange},
+ {"0xFFFFFFFFFFFFFFFF", 0, 1<<64 - 1, nil},
+ {"0x10000000000000000", 0, 1<<64 - 1, ErrRange},
+ {"01777777777777777777777", 0, 1<<64 - 1, nil},
+ {"01777777777777777777778", 0, 0, ErrSyntax},
+ {"02000000000000000000000", 0, 1<<64 - 1, ErrRange},
+ {"0200000000000000000000", 0, 1 << 61, nil},
+ {"0b", 0, 0, ErrSyntax},
+ {"0B", 0, 0, ErrSyntax},
+ {"0b101", 0, 5, nil},
+ {"0B101", 0, 5, nil},
+ {"0o", 0, 0, ErrSyntax},
+ {"0O", 0, 0, ErrSyntax},
+ {"0o377", 0, 255, nil},
+ {"0O377", 0, 255, nil},
+
+ // underscores allowed with base == 0 only
+ {"1_2_3_4_5", 0, 12345, nil}, // base 0 => 10
+ {"_12345", 0, 0, ErrSyntax},
+ {"1__2345", 0, 0, ErrSyntax},
+ {"12345_", 0, 0, ErrSyntax},
+
+ {"1_2_3_4_5", 10, 0, ErrSyntax}, // base 10
+ {"_12345", 10, 0, ErrSyntax},
+ {"1__2345", 10, 0, ErrSyntax},
+ {"12345_", 10, 0, ErrSyntax},
+
+ {"0x_1_2_3_4_5", 0, 0x12345, nil}, // base 0 => 16
+ {"_0x12345", 0, 0, ErrSyntax},
+ {"0x__12345", 0, 0, ErrSyntax},
+ {"0x1__2345", 0, 0, ErrSyntax},
+ {"0x1234__5", 0, 0, ErrSyntax},
+ {"0x12345_", 0, 0, ErrSyntax},
+
+ {"1_2_3_4_5", 16, 0, ErrSyntax}, // base 16
+ {"_12345", 16, 0, ErrSyntax},
+ {"1__2345", 16, 0, ErrSyntax},
+ {"1234__5", 16, 0, ErrSyntax},
+ {"12345_", 16, 0, ErrSyntax},
+
+ {"0_1_2_3_4_5", 0, 012345, nil}, // base 0 => 8 (0377)
+ {"_012345", 0, 0, ErrSyntax},
+ {"0__12345", 0, 0, ErrSyntax},
+ {"01234__5", 0, 0, ErrSyntax},
+ {"012345_", 0, 0, ErrSyntax},
+
+ {"0o_1_2_3_4_5", 0, 012345, nil}, // base 0 => 8 (0o377)
+ {"_0o12345", 0, 0, ErrSyntax},
+ {"0o__12345", 0, 0, ErrSyntax},
+ {"0o1234__5", 0, 0, ErrSyntax},
+ {"0o12345_", 0, 0, ErrSyntax},
+
+ {"0_1_2_3_4_5", 8, 0, ErrSyntax}, // base 8
+ {"_012345", 8, 0, ErrSyntax},
+ {"0__12345", 8, 0, ErrSyntax},
+ {"01234__5", 8, 0, ErrSyntax},
+ {"012345_", 8, 0, ErrSyntax},
+
+ {"0b_1_0_1", 0, 5, nil}, // base 0 => 2 (0b101)
+ {"_0b101", 0, 0, ErrSyntax},
+ {"0b__101", 0, 0, ErrSyntax},
+ {"0b1__01", 0, 0, ErrSyntax},
+ {"0b10__1", 0, 0, ErrSyntax},
+ {"0b101_", 0, 0, ErrSyntax},
+
+ {"1_0_1", 2, 0, ErrSyntax}, // base 2
+ {"_101", 2, 0, ErrSyntax},
+ {"1_01", 2, 0, ErrSyntax},
+ {"10_1", 2, 0, ErrSyntax},
+ {"101_", 2, 0, ErrSyntax},
+}
+
+type parseInt64Test struct {
+ in string
+ out int64
+ err error
+}
+
+var parseInt64Tests = []parseInt64Test{
+ {"", 0, ErrSyntax},
+ {"0", 0, nil},
+ {"-0", 0, nil},
+ {"+0", 0, nil},
+ {"1", 1, nil},
+ {"-1", -1, nil},
+ {"+1", 1, nil},
+ {"12345", 12345, nil},
+ {"-12345", -12345, nil},
+ {"012345", 12345, nil},
+ {"-012345", -12345, nil},
+ {"98765432100", 98765432100, nil},
+ {"-98765432100", -98765432100, nil},
+ {"9223372036854775807", 1<<63 - 1, nil},
+ {"-9223372036854775807", -(1<<63 - 1), nil},
+ {"9223372036854775808", 1<<63 - 1, ErrRange},
+ {"-9223372036854775808", -1 << 63, nil},
+ {"9223372036854775809", 1<<63 - 1, ErrRange},
+ {"-9223372036854775809", -1 << 63, ErrRange},
+ {"-1_2_3_4_5", 0, ErrSyntax}, // base=10 so no underscores allowed
+ {"-_12345", 0, ErrSyntax},
+ {"_12345", 0, ErrSyntax},
+ {"1__2345", 0, ErrSyntax},
+ {"12345_", 0, ErrSyntax},
+}
+
+type parseInt64BaseTest struct {
+ in string
+ base int
+ out int64
+ err error
+}
+
+var parseInt64BaseTests = []parseInt64BaseTest{
+ {"", 0, 0, ErrSyntax},
+ {"0", 0, 0, nil},
+ {"-0", 0, 0, nil},
+ {"1", 0, 1, nil},
+ {"-1", 0, -1, nil},
+ {"12345", 0, 12345, nil},
+ {"-12345", 0, -12345, nil},
+ {"012345", 0, 012345, nil},
+ {"-012345", 0, -012345, nil},
+ {"0x12345", 0, 0x12345, nil},
+ {"-0X12345", 0, -0x12345, nil},
+ {"12345x", 0, 0, ErrSyntax},
+ {"-12345x", 0, 0, ErrSyntax},
+ {"98765432100", 0, 98765432100, nil},
+ {"-98765432100", 0, -98765432100, nil},
+ {"9223372036854775807", 0, 1<<63 - 1, nil},
+ {"-9223372036854775807", 0, -(1<<63 - 1), nil},
+ {"9223372036854775808", 0, 1<<63 - 1, ErrRange},
+ {"-9223372036854775808", 0, -1 << 63, nil},
+ {"9223372036854775809", 0, 1<<63 - 1, ErrRange},
+ {"-9223372036854775809", 0, -1 << 63, ErrRange},
+
+ // other bases
+ {"g", 17, 16, nil},
+ {"10", 25, 25, nil},
+ {"holycow", 35, (((((17*35+24)*35+21)*35+34)*35+12)*35+24)*35 + 32, nil},
+ {"holycow", 36, (((((17*36+24)*36+21)*36+34)*36+12)*36+24)*36 + 32, nil},
+
+ // base 2
+ {"0", 2, 0, nil},
+ {"-1", 2, -1, nil},
+ {"1010", 2, 10, nil},
+ {"1000000000000000", 2, 1 << 15, nil},
+ {"111111111111111111111111111111111111111111111111111111111111111", 2, 1<<63 - 1, nil},
+ {"1000000000000000000000000000000000000000000000000000000000000000", 2, 1<<63 - 1, ErrRange},
+ {"-1000000000000000000000000000000000000000000000000000000000000000", 2, -1 << 63, nil},
+ {"-1000000000000000000000000000000000000000000000000000000000000001", 2, -1 << 63, ErrRange},
+
+ // base 8
+ {"-10", 8, -8, nil},
+ {"57635436545", 8, 057635436545, nil},
+ {"100000000", 8, 1 << 24, nil},
+
+ // base 16
+ {"10", 16, 16, nil},
+ {"-123456789abcdef", 16, -0x123456789abcdef, nil},
+ {"7fffffffffffffff", 16, 1<<63 - 1, nil},
+
+ // underscores
+ {"-0x_1_2_3_4_5", 0, -0x12345, nil},
+ {"0x_1_2_3_4_5", 0, 0x12345, nil},
+ {"-_0x12345", 0, 0, ErrSyntax},
+ {"_-0x12345", 0, 0, ErrSyntax},
+ {"_0x12345", 0, 0, ErrSyntax},
+ {"0x__12345", 0, 0, ErrSyntax},
+ {"0x1__2345", 0, 0, ErrSyntax},
+ {"0x1234__5", 0, 0, ErrSyntax},
+ {"0x12345_", 0, 0, ErrSyntax},
+
+ {"-0_1_2_3_4_5", 0, -012345, nil}, // octal
+ {"0_1_2_3_4_5", 0, 012345, nil}, // octal
+ {"-_012345", 0, 0, ErrSyntax},
+ {"_-012345", 0, 0, ErrSyntax},
+ {"_012345", 0, 0, ErrSyntax},
+ {"0__12345", 0, 0, ErrSyntax},
+ {"01234__5", 0, 0, ErrSyntax},
+ {"012345_", 0, 0, ErrSyntax},
+
+ {"+0xf", 0, 0xf, nil},
+ {"-0xf", 0, -0xf, nil},
+ {"0x+f", 0, 0, ErrSyntax},
+ {"0x-f", 0, 0, ErrSyntax},
+}
+
+type parseUint32Test struct {
+ in string
+ out uint32
+ err error
+}
+
+var parseUint32Tests = []parseUint32Test{
+ {"", 0, ErrSyntax},
+ {"0", 0, nil},
+ {"1", 1, nil},
+ {"12345", 12345, nil},
+ {"012345", 12345, nil},
+ {"12345x", 0, ErrSyntax},
+ {"987654321", 987654321, nil},
+ {"4294967295", 1<<32 - 1, nil},
+ {"4294967296", 1<<32 - 1, ErrRange},
+ {"1_2_3_4_5", 0, ErrSyntax}, // base=10 so no underscores allowed
+ {"_12345", 0, ErrSyntax},
+ {"_12345", 0, ErrSyntax},
+ {"1__2345", 0, ErrSyntax},
+ {"12345_", 0, ErrSyntax},
+}
+
+type parseInt32Test struct {
+ in string
+ out int32
+ err error
+}
+
+var parseInt32Tests = []parseInt32Test{
+ {"", 0, ErrSyntax},
+ {"0", 0, nil},
+ {"-0", 0, nil},
+ {"1", 1, nil},
+ {"-1", -1, nil},
+ {"12345", 12345, nil},
+ {"-12345", -12345, nil},
+ {"012345", 12345, nil},
+ {"-012345", -12345, nil},
+ {"12345x", 0, ErrSyntax},
+ {"-12345x", 0, ErrSyntax},
+ {"987654321", 987654321, nil},
+ {"-987654321", -987654321, nil},
+ {"2147483647", 1<<31 - 1, nil},
+ {"-2147483647", -(1<<31 - 1), nil},
+ {"2147483648", 1<<31 - 1, ErrRange},
+ {"-2147483648", -1 << 31, nil},
+ {"2147483649", 1<<31 - 1, ErrRange},
+ {"-2147483649", -1 << 31, ErrRange},
+ {"-1_2_3_4_5", 0, ErrSyntax}, // base=10 so no underscores allowed
+ {"-_12345", 0, ErrSyntax},
+ {"_12345", 0, ErrSyntax},
+ {"1__2345", 0, ErrSyntax},
+ {"12345_", 0, ErrSyntax},
+}
+
+type numErrorTest struct {
+ num, want string
+}
+
+var numErrorTests = []numErrorTest{
+ {"0", `strconv.ParseFloat: parsing "0": failed`},
+ {"`", "strconv.ParseFloat: parsing \"`\": failed"},
+ {"1\x00.2", `strconv.ParseFloat: parsing "1\x00.2": failed`},
+}
+
+func init() {
+ // The parse routines return NumErrors wrapping
+ // the error and the string. Convert the tables above.
+ for i := range parseUint64Tests {
+ test := &parseUint64Tests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseUint", test.in, test.err}
+ }
+ }
+ for i := range parseUint64BaseTests {
+ test := &parseUint64BaseTests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseUint", test.in, test.err}
+ }
+ }
+ for i := range parseInt64Tests {
+ test := &parseInt64Tests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseInt", test.in, test.err}
+ }
+ }
+ for i := range parseInt64BaseTests {
+ test := &parseInt64BaseTests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseInt", test.in, test.err}
+ }
+ }
+ for i := range parseUint32Tests {
+ test := &parseUint32Tests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseUint", test.in, test.err}
+ }
+ }
+ for i := range parseInt32Tests {
+ test := &parseInt32Tests[i]
+ if test.err != nil {
+ test.err = &NumError{"ParseInt", test.in, test.err}
+ }
+ }
+}
+
+func TestParseUint32(t *testing.T) {
+ for i := range parseUint32Tests {
+ test := &parseUint32Tests[i]
+ out, err := ParseUint(test.in, 10, 32)
+ if uint64(test.out) != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseUint(%q, 10, 32) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseUint64(t *testing.T) {
+ for i := range parseUint64Tests {
+ test := &parseUint64Tests[i]
+ out, err := ParseUint(test.in, 10, 64)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseUint(%q, 10, 64) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseUint64Base(t *testing.T) {
+ for i := range parseUint64BaseTests {
+ test := &parseUint64BaseTests[i]
+ out, err := ParseUint(test.in, test.base, 64)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseUint(%q, %v, 64) = %v, %v want %v, %v",
+ test.in, test.base, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseInt32(t *testing.T) {
+ for i := range parseInt32Tests {
+ test := &parseInt32Tests[i]
+ out, err := ParseInt(test.in, 10, 32)
+ if int64(test.out) != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseInt(%q, 10 ,32) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseInt64(t *testing.T) {
+ for i := range parseInt64Tests {
+ test := &parseInt64Tests[i]
+ out, err := ParseInt(test.in, 10, 64)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseInt(%q, 10, 64) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseInt64Base(t *testing.T) {
+ for i := range parseInt64BaseTests {
+ test := &parseInt64BaseTests[i]
+ out, err := ParseInt(test.in, test.base, 64)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseInt(%q, %v, 64) = %v, %v want %v, %v",
+ test.in, test.base, out, err, test.out, test.err)
+ }
+ }
+}
+
+func TestParseUint(t *testing.T) {
+ switch IntSize {
+ case 32:
+ for i := range parseUint32Tests {
+ test := &parseUint32Tests[i]
+ out, err := ParseUint(test.in, 10, 0)
+ if uint64(test.out) != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseUint(%q, 10, 0) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+ case 64:
+ for i := range parseUint64Tests {
+ test := &parseUint64Tests[i]
+ out, err := ParseUint(test.in, 10, 0)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseUint(%q, 10, 0) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+ }
+}
+
+func TestParseInt(t *testing.T) {
+ switch IntSize {
+ case 32:
+ for i := range parseInt32Tests {
+ test := &parseInt32Tests[i]
+ out, err := ParseInt(test.in, 10, 0)
+ if int64(test.out) != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseInt(%q, 10, 0) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+ case 64:
+ for i := range parseInt64Tests {
+ test := &parseInt64Tests[i]
+ out, err := ParseInt(test.in, 10, 0)
+ if test.out != out || !reflect.DeepEqual(test.err, err) {
+ t.Errorf("ParseInt(%q, 10, 0) = %v, %v want %v, %v",
+ test.in, out, err, test.out, test.err)
+ }
+ }
+ }
+}
+
+func TestAtoi(t *testing.T) {
+ switch IntSize {
+ case 32:
+ for i := range parseInt32Tests {
+ test := &parseInt32Tests[i]
+ out, err := Atoi(test.in)
+ var testErr error
+ if test.err != nil {
+ testErr = &NumError{"Atoi", test.in, test.err.(*NumError).Err}
+ }
+ if int(test.out) != out || !reflect.DeepEqual(testErr, err) {
+ t.Errorf("Atoi(%q) = %v, %v want %v, %v",
+ test.in, out, err, test.out, testErr)
+ }
+ }
+ case 64:
+ for i := range parseInt64Tests {
+ test := &parseInt64Tests[i]
+ out, err := Atoi(test.in)
+ var testErr error
+ if test.err != nil {
+ testErr = &NumError{"Atoi", test.in, test.err.(*NumError).Err}
+ }
+ if test.out != int64(out) || !reflect.DeepEqual(testErr, err) {
+ t.Errorf("Atoi(%q) = %v, %v want %v, %v",
+ test.in, out, err, test.out, testErr)
+ }
+ }
+ }
+}
+
+func bitSizeErrStub(name string, bitSize int) error {
+ return BitSizeError(name, "0", bitSize)
+}
+
+func baseErrStub(name string, base int) error {
+ return BaseError(name, "0", base)
+}
+
+func noErrStub(name string, arg int) error {
+ return nil
+}
+
+type parseErrorTest struct {
+ arg int
+ errStub func(name string, arg int) error
+}
+
+var parseBitSizeTests = []parseErrorTest{
+ {-1, bitSizeErrStub},
+ {0, noErrStub},
+ {64, noErrStub},
+ {65, bitSizeErrStub},
+}
+
+var parseBaseTests = []parseErrorTest{
+ {-1, baseErrStub},
+ {0, noErrStub},
+ {1, baseErrStub},
+ {2, noErrStub},
+ {36, noErrStub},
+ {37, baseErrStub},
+}
+
+func equalError(a, b error) bool {
+ if a == nil {
+ return b == nil
+ }
+ if b == nil {
+ return a == nil
+ }
+ return a.Error() == b.Error()
+}
+
+func TestParseIntBitSize(t *testing.T) {
+ for i := range parseBitSizeTests {
+ test := &parseBitSizeTests[i]
+ testErr := test.errStub("ParseInt", test.arg)
+ _, err := ParseInt("0", 0, test.arg)
+ if !equalError(testErr, err) {
+ t.Errorf("ParseInt(\"0\", 0, %v) = 0, %v want 0, %v",
+ test.arg, err, testErr)
+ }
+ }
+}
+
+func TestParseUintBitSize(t *testing.T) {
+ for i := range parseBitSizeTests {
+ test := &parseBitSizeTests[i]
+ testErr := test.errStub("ParseUint", test.arg)
+ _, err := ParseUint("0", 0, test.arg)
+ if !equalError(testErr, err) {
+ t.Errorf("ParseUint(\"0\", 0, %v) = 0, %v want 0, %v",
+ test.arg, err, testErr)
+ }
+ }
+}
+
+func TestParseIntBase(t *testing.T) {
+ for i := range parseBaseTests {
+ test := &parseBaseTests[i]
+ testErr := test.errStub("ParseInt", test.arg)
+ _, err := ParseInt("0", test.arg, 0)
+ if !equalError(testErr, err) {
+ t.Errorf("ParseInt(\"0\", %v, 0) = 0, %v want 0, %v",
+ test.arg, err, testErr)
+ }
+ }
+}
+
+func TestParseUintBase(t *testing.T) {
+ for i := range parseBaseTests {
+ test := &parseBaseTests[i]
+ testErr := test.errStub("ParseUint", test.arg)
+ _, err := ParseUint("0", test.arg, 0)
+ if !equalError(testErr, err) {
+ t.Errorf("ParseUint(\"0\", %v, 0) = 0, %v want 0, %v",
+ test.arg, err, testErr)
+ }
+ }
+}
+
+func TestNumError(t *testing.T) {
+ for _, test := range numErrorTests {
+ err := &NumError{
+ Func: "ParseFloat",
+ Num: test.num,
+ Err: errors.New("failed"),
+ }
+ if got := err.Error(); got != test.want {
+ t.Errorf(`(&NumError{"ParseFloat", %q, "failed"}).Error() = %v, want %v`, test.num, got, test.want)
+ }
+ }
+}
+
+func TestNumErrorUnwrap(t *testing.T) {
+ err := &NumError{Err: ErrSyntax}
+ if !errors.Is(err, ErrSyntax) {
+ t.Error("errors.Is failed, wanted success")
+ }
+}
+
+func BenchmarkParseInt(b *testing.B) {
+ b.Run("Pos", func(b *testing.B) {
+ benchmarkParseInt(b, 1)
+ })
+ b.Run("Neg", func(b *testing.B) {
+ benchmarkParseInt(b, -1)
+ })
+}
+
+type benchCase struct {
+ name string
+ num int64
+}
+
+func benchmarkParseInt(b *testing.B, neg int) {
+ cases := []benchCase{
+ {"7bit", 1<<7 - 1},
+ {"26bit", 1<<26 - 1},
+ {"31bit", 1<<31 - 1},
+ {"56bit", 1<<56 - 1},
+ {"63bit", 1<<63 - 1},
+ }
+ for _, cs := range cases {
+ b.Run(cs.name, func(b *testing.B) {
+ s := fmt.Sprintf("%d", cs.num*int64(neg))
+ for i := 0; i < b.N; i++ {
+ out, _ := ParseInt(s, 10, 64)
+ BenchSink += int(out)
+ }
+ })
+ }
+}
+
+func BenchmarkAtoi(b *testing.B) {
+ b.Run("Pos", func(b *testing.B) {
+ benchmarkAtoi(b, 1)
+ })
+ b.Run("Neg", func(b *testing.B) {
+ benchmarkAtoi(b, -1)
+ })
+}
+
+func benchmarkAtoi(b *testing.B, neg int) {
+ cases := []benchCase{
+ {"7bit", 1<<7 - 1},
+ {"26bit", 1<<26 - 1},
+ {"31bit", 1<<31 - 1},
+ }
+ if IntSize == 64 {
+ cases = append(cases, []benchCase{
+ {"56bit", 1<<56 - 1},
+ {"63bit", 1<<63 - 1},
+ }...)
+ }
+ for _, cs := range cases {
+ b.Run(cs.name, func(b *testing.B) {
+ s := fmt.Sprintf("%d", cs.num*int64(neg))
+ for i := 0; i < b.N; i++ {
+ out, _ := Atoi(s)
+ BenchSink += out
+ }
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 11:07:57 +0000