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895 lines
29 KiB
895 lines
29 KiB
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/strings/string_number_conversions.h"
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#include <errno.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <cmath>
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#include <limits>
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#include "base/bit_cast.h"
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#include "base/format_macros.h"
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#include "base/macros.h"
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#include "base/strings/stringprintf.h"
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#include "base/strings/utf_string_conversions.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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namespace {
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template <typename INT>
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struct NumberToStringTest {
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INT num;
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const char* sexpected;
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const char* uexpected;
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};
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} // namespace
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TEST(StringNumberConversionsTest, NumberToString) {
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static const NumberToStringTest<int> int_tests[] = {
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{0, "0", "0"},
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{-1, "-1", "4294967295"},
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{std::numeric_limits<int>::max(), "2147483647", "2147483647"},
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{std::numeric_limits<int>::min(), "-2147483648", "2147483648"},
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};
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static const NumberToStringTest<int64_t> int64_tests[] = {
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{0, "0", "0"},
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{-1, "-1", "18446744073709551615"},
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{
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std::numeric_limits<int64_t>::max(), "9223372036854775807",
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"9223372036854775807",
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},
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{std::numeric_limits<int64_t>::min(), "-9223372036854775808",
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"9223372036854775808"},
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};
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for (size_t i = 0; i < arraysize(int_tests); ++i) {
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const NumberToStringTest<int>& test = int_tests[i];
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EXPECT_EQ(NumberToString(test.num), test.sexpected);
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EXPECT_EQ(NumberToString16(test.num), UTF8ToUTF16(test.sexpected));
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EXPECT_EQ(NumberToString(static_cast<unsigned>(test.num)), test.uexpected);
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EXPECT_EQ(NumberToString16(static_cast<unsigned>(test.num)),
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UTF8ToUTF16(test.uexpected));
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}
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for (size_t i = 0; i < arraysize(int64_tests); ++i) {
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const NumberToStringTest<int64_t>& test = int64_tests[i];
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EXPECT_EQ(NumberToString(test.num), test.sexpected);
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EXPECT_EQ(NumberToString16(test.num), UTF8ToUTF16(test.sexpected));
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EXPECT_EQ(NumberToString(static_cast<uint64_t>(test.num)), test.uexpected);
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EXPECT_EQ(NumberToString16(static_cast<uint64_t>(test.num)),
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UTF8ToUTF16(test.uexpected));
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}
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}
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TEST(StringNumberConversionsTest, Uint64ToString) {
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static const struct {
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uint64_t input;
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std::string output;
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} cases[] = {
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{0, "0"},
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{42, "42"},
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{INT_MAX, "2147483647"},
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{std::numeric_limits<uint64_t>::max(), "18446744073709551615"},
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};
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for (size_t i = 0; i < arraysize(cases); ++i)
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EXPECT_EQ(cases[i].output, NumberToString(cases[i].input));
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}
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TEST(StringNumberConversionsTest, SizeTToString) {
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size_t size_t_max = std::numeric_limits<size_t>::max();
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std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max);
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static const struct {
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size_t input;
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std::string output;
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} cases[] = {
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{0, "0"},
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{9, "9"},
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{42, "42"},
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{INT_MAX, "2147483647"},
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{2147483648U, "2147483648"},
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#if SIZE_MAX > 4294967295U
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{99999999999U, "99999999999"},
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#endif
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{size_t_max, size_t_max_string},
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};
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for (size_t i = 0; i < arraysize(cases); ++i)
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EXPECT_EQ(cases[i].output, NumberToString(cases[i].input));
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}
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TEST(StringNumberConversionsTest, StringToInt) {
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static const struct {
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std::string input;
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int output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 42, true},
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{"42\x99", 42, false},
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{"\x99" "42\x99", 0, false},
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{"-2147483648", INT_MIN, true},
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{"2147483647", INT_MAX, true},
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{"", 0, false},
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{" 42", 42, false},
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{"42 ", 42, false},
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{"\t\n\v\f\r 42", 42, false},
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{"blah42", 0, false},
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{"42blah", 42, false},
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{"blah42blah", 0, false},
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{"-273.15", -273, false},
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{"+98.6", 98, false},
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{"--123", 0, false},
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{"++123", 0, false},
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{"-+123", 0, false},
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{"+-123", 0, false},
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{"-", 0, false},
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{"-2147483649", INT_MIN, false},
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{"-99999999999", INT_MIN, false},
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{"2147483648", INT_MAX, false},
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{"99999999999", INT_MAX, false},
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};
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for (size_t i = 0; i < arraysize(cases); ++i) {
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int output = cases[i].output ^ 1; // Ensure StringToInt wrote something.
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EXPECT_EQ(cases[i].success, StringToInt(cases[i].input, &output));
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EXPECT_EQ(cases[i].output, output);
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string16 utf16_input = UTF8ToUTF16(cases[i].input);
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output = cases[i].output ^ 1; // Ensure StringToInt wrote something.
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EXPECT_EQ(cases[i].success, StringToInt(utf16_input, &output));
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EXPECT_EQ(cases[i].output, output);
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}
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// One additional test to verify that conversion of numbers in strings with
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// embedded NUL characters. The NUL and extra data after it should be
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// interpreted as junk after the number.
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const char input[] = "6\06";
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std::string input_string(input, arraysize(input) - 1);
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int output;
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EXPECT_FALSE(StringToInt(input_string, &output));
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EXPECT_EQ(6, output);
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string16 utf16_input = UTF8ToUTF16(input_string);
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output = 0;
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EXPECT_FALSE(StringToInt(utf16_input, &output));
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EXPECT_EQ(6, output);
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output = 0;
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const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0};
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EXPECT_FALSE(StringToInt(string16(negative_wide_input), &output));
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EXPECT_EQ(0, output);
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}
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TEST(StringNumberConversionsTest, StringToUint) {
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static const struct {
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std::string input;
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unsigned output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 42, true},
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{"42\x99", 42, false},
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{"\x99" "42\x99", 0, false},
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{"-2147483648", 0, false},
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{"2147483647", INT_MAX, true},
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{"", 0, false},
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{" 42", 42, false},
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{"42 ", 42, false},
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{"\t\n\v\f\r 42", 42, false},
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{"blah42", 0, false},
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{"42blah", 42, false},
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{"blah42blah", 0, false},
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{"-273.15", 0, false},
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{"+98.6", 98, false},
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{"--123", 0, false},
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{"++123", 0, false},
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{"-+123", 0, false},
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{"+-123", 0, false},
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{"-", 0, false},
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{"-2147483649", 0, false},
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{"-99999999999", 0, false},
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{"4294967295", UINT_MAX, true},
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{"4294967296", UINT_MAX, false},
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{"99999999999", UINT_MAX, false},
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};
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for (size_t i = 0; i < arraysize(cases); ++i) {
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unsigned output =
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cases[i].output ^ 1; // Ensure StringToUint wrote something.
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EXPECT_EQ(cases[i].success, StringToUint(cases[i].input, &output));
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EXPECT_EQ(cases[i].output, output);
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string16 utf16_input = UTF8ToUTF16(cases[i].input);
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output = cases[i].output ^ 1; // Ensure StringToUint wrote something.
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EXPECT_EQ(cases[i].success, StringToUint(utf16_input, &output));
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EXPECT_EQ(cases[i].output, output);
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}
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// One additional test to verify that conversion of numbers in strings with
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// embedded NUL characters. The NUL and extra data after it should be
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// interpreted as junk after the number.
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const char input[] = "6\06";
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std::string input_string(input, arraysize(input) - 1);
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unsigned output;
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EXPECT_FALSE(StringToUint(input_string, &output));
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EXPECT_EQ(6U, output);
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string16 utf16_input = UTF8ToUTF16(input_string);
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output = 0;
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EXPECT_FALSE(StringToUint(utf16_input, &output));
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EXPECT_EQ(6U, output);
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output = 0;
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const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0};
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EXPECT_FALSE(StringToUint(string16(negative_wide_input), &output));
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EXPECT_EQ(0U, output);
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}
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TEST(StringNumberConversionsTest, StringToInt64) {
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static const struct {
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std::string input;
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int64_t output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 42, true},
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{"-2147483648", INT_MIN, true},
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{"2147483647", INT_MAX, true},
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{"-2147483649", INT64_C(-2147483649), true},
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{"-99999999999", INT64_C(-99999999999), true},
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{"2147483648", INT64_C(2147483648), true},
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{"99999999999", INT64_C(99999999999), true},
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{"9223372036854775807", std::numeric_limits<int64_t>::max(), true},
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{"-9223372036854775808", std::numeric_limits<int64_t>::min(), true},
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{"09", 9, true},
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{"-09", -9, true},
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{"", 0, false},
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{" 42", 42, false},
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{"42 ", 42, false},
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{"0x42", 0, false},
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{"\t\n\v\f\r 42", 42, false},
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{"blah42", 0, false},
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{"42blah", 42, false},
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{"blah42blah", 0, false},
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{"-273.15", -273, false},
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{"+98.6", 98, false},
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{"--123", 0, false},
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{"++123", 0, false},
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{"-+123", 0, false},
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{"+-123", 0, false},
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{"-", 0, false},
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{"-9223372036854775809", std::numeric_limits<int64_t>::min(), false},
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{"-99999999999999999999", std::numeric_limits<int64_t>::min(), false},
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{"9223372036854775808", std::numeric_limits<int64_t>::max(), false},
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{"99999999999999999999", std::numeric_limits<int64_t>::max(), false},
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};
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for (size_t i = 0; i < arraysize(cases); ++i) {
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int64_t output = 0;
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EXPECT_EQ(cases[i].success, StringToInt64(cases[i].input, &output));
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EXPECT_EQ(cases[i].output, output);
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string16 utf16_input = UTF8ToUTF16(cases[i].input);
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output = 0;
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EXPECT_EQ(cases[i].success, StringToInt64(utf16_input, &output));
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EXPECT_EQ(cases[i].output, output);
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}
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// One additional test to verify that conversion of numbers in strings with
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// embedded NUL characters. The NUL and extra data after it should be
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// interpreted as junk after the number.
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const char input[] = "6\06";
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std::string input_string(input, arraysize(input) - 1);
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int64_t output;
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EXPECT_FALSE(StringToInt64(input_string, &output));
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EXPECT_EQ(6, output);
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string16 utf16_input = UTF8ToUTF16(input_string);
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output = 0;
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EXPECT_FALSE(StringToInt64(utf16_input, &output));
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EXPECT_EQ(6, output);
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}
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TEST(StringNumberConversionsTest, StringToUint64) {
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static const struct {
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std::string input;
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uint64_t output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 42, true},
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{"-2147483648", 0, false},
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{"2147483647", INT_MAX, true},
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{"-2147483649", 0, false},
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{"-99999999999", 0, false},
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{"2147483648", UINT64_C(2147483648), true},
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{"99999999999", UINT64_C(99999999999), true},
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{"9223372036854775807", std::numeric_limits<int64_t>::max(), true},
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{"-9223372036854775808", 0, false},
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{"09", 9, true},
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{"-09", 0, false},
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{"", 0, false},
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{" 42", 42, false},
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{"42 ", 42, false},
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{"0x42", 0, false},
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{"\t\n\v\f\r 42", 42, false},
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{"blah42", 0, false},
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{"42blah", 42, false},
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{"blah42blah", 0, false},
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{"-273.15", 0, false},
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{"+98.6", 98, false},
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{"--123", 0, false},
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{"++123", 0, false},
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{"-+123", 0, false},
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{"+-123", 0, false},
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{"-", 0, false},
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{"-9223372036854775809", 0, false},
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{"-99999999999999999999", 0, false},
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{"9223372036854775808", UINT64_C(9223372036854775808), true},
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{"99999999999999999999", std::numeric_limits<uint64_t>::max(), false},
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{"18446744073709551615", std::numeric_limits<uint64_t>::max(), true},
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{"18446744073709551616", std::numeric_limits<uint64_t>::max(), false},
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};
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for (size_t i = 0; i < arraysize(cases); ++i) {
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uint64_t output = 0;
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EXPECT_EQ(cases[i].success, StringToUint64(cases[i].input, &output));
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EXPECT_EQ(cases[i].output, output);
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string16 utf16_input = UTF8ToUTF16(cases[i].input);
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output = 0;
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EXPECT_EQ(cases[i].success, StringToUint64(utf16_input, &output));
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EXPECT_EQ(cases[i].output, output);
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}
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// One additional test to verify that conversion of numbers in strings with
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// embedded NUL characters. The NUL and extra data after it should be
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// interpreted as junk after the number.
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const char input[] = "6\06";
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std::string input_string(input, arraysize(input) - 1);
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uint64_t output;
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EXPECT_FALSE(StringToUint64(input_string, &output));
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EXPECT_EQ(6U, output);
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string16 utf16_input = UTF8ToUTF16(input_string);
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output = 0;
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EXPECT_FALSE(StringToUint64(utf16_input, &output));
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EXPECT_EQ(6U, output);
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}
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TEST(StringNumberConversionsTest, StringToSizeT) {
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size_t size_t_max = std::numeric_limits<size_t>::max();
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std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max);
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static const struct {
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std::string input;
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size_t output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 42, true},
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{"-2147483648", 0, false},
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{"2147483647", INT_MAX, true},
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{"-2147483649", 0, false},
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{"-99999999999", 0, false},
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{"2147483648", 2147483648U, true},
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#if SIZE_MAX > 4294967295U
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{"99999999999", 99999999999U, true},
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#endif
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{"-9223372036854775808", 0, false},
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{"09", 9, true},
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{"-09", 0, false},
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{"", 0, false},
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{" 42", 42, false},
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{"42 ", 42, false},
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{"0x42", 0, false},
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{"\t\n\v\f\r 42", 42, false},
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{"blah42", 0, false},
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{"42blah", 42, false},
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{"blah42blah", 0, false},
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{"-273.15", 0, false},
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{"+98.6", 98, false},
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{"--123", 0, false},
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{"++123", 0, false},
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{"-+123", 0, false},
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{"+-123", 0, false},
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{"-", 0, false},
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{"-9223372036854775809", 0, false},
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{"-99999999999999999999", 0, false},
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{"999999999999999999999999", size_t_max, false},
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{size_t_max_string, size_t_max, true},
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};
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for (size_t i = 0; i < arraysize(cases); ++i) {
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size_t output = 0;
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EXPECT_EQ(cases[i].success, StringToSizeT(cases[i].input, &output));
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EXPECT_EQ(cases[i].output, output);
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string16 utf16_input = UTF8ToUTF16(cases[i].input);
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output = 0;
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EXPECT_EQ(cases[i].success, StringToSizeT(utf16_input, &output));
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EXPECT_EQ(cases[i].output, output);
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}
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// One additional test to verify that conversion of numbers in strings with
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// embedded NUL characters. The NUL and extra data after it should be
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// interpreted as junk after the number.
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const char input[] = "6\06";
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std::string input_string(input, arraysize(input) - 1);
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size_t output;
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EXPECT_FALSE(StringToSizeT(input_string, &output));
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EXPECT_EQ(6U, output);
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string16 utf16_input = UTF8ToUTF16(input_string);
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output = 0;
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EXPECT_FALSE(StringToSizeT(utf16_input, &output));
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EXPECT_EQ(6U, output);
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}
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TEST(StringNumberConversionsTest, HexStringToInt) {
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static const struct {
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std::string input;
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int64_t output;
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bool success;
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} cases[] = {
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{"0", 0, true},
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{"42", 66, true},
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{"-42", -66, true},
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{"+42", 66, true},
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{"7fffffff", INT_MAX, true},
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{"-80000000", INT_MIN, true},
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{"80000000", INT_MAX, false}, // Overflow test.
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{"-80000001", INT_MIN, false}, // Underflow test.
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{"0x42", 66, true},
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{"-0x42", -66, true},
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{"+0x42", 66, true},
|
|
{"0x7fffffff", INT_MAX, true},
|
|
{"-0x80000000", INT_MIN, true},
|
|
{"-80000000", INT_MIN, true},
|
|
{"80000000", INT_MAX, false}, // Overflow test.
|
|
{"-80000001", INT_MIN, false}, // Underflow test.
|
|
{"0x0f", 15, true},
|
|
{"0f", 15, true},
|
|
{" 45", 0x45, false},
|
|
{"\t\n\v\f\r 0x45", 0x45, false},
|
|
{" 45", 0x45, false},
|
|
{"45 ", 0x45, false},
|
|
{"45:", 0x45, false},
|
|
{"efgh", 0xef, false},
|
|
{"0xefgh", 0xef, false},
|
|
{"hgfe", 0, false},
|
|
{"-", 0, false},
|
|
{"", 0, false},
|
|
{"0x", 0, false},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
int output = 0;
|
|
EXPECT_EQ(cases[i].success, HexStringToInt(cases[i].input, &output));
|
|
EXPECT_EQ(cases[i].output, output);
|
|
}
|
|
// One additional test to verify that conversion of numbers in strings with
|
|
// embedded NUL characters. The NUL and extra data after it should be
|
|
// interpreted as junk after the number.
|
|
const char input[] = "0xc0ffee\0" "9";
|
|
std::string input_string(input, arraysize(input) - 1);
|
|
int output;
|
|
EXPECT_FALSE(HexStringToInt(input_string, &output));
|
|
EXPECT_EQ(0xc0ffee, output);
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, HexStringToUInt) {
|
|
static const struct {
|
|
std::string input;
|
|
uint32_t output;
|
|
bool success;
|
|
} cases[] = {
|
|
{"0", 0, true},
|
|
{"42", 0x42, true},
|
|
{"-42", 0, false},
|
|
{"+42", 0x42, true},
|
|
{"7fffffff", INT_MAX, true},
|
|
{"-80000000", 0, false},
|
|
{"ffffffff", 0xffffffff, true},
|
|
{"DeadBeef", 0xdeadbeef, true},
|
|
{"0x42", 0x42, true},
|
|
{"-0x42", 0, false},
|
|
{"+0x42", 0x42, true},
|
|
{"0x7fffffff", INT_MAX, true},
|
|
{"-0x80000000", 0, false},
|
|
{"0xffffffff", std::numeric_limits<uint32_t>::max(), true},
|
|
{"0XDeadBeef", 0xdeadbeef, true},
|
|
{"0x7fffffffffffffff", std::numeric_limits<uint32_t>::max(),
|
|
false}, // Overflow test.
|
|
{"-0x8000000000000000", 0, false},
|
|
{"0x8000000000000000", std::numeric_limits<uint32_t>::max(),
|
|
false}, // Overflow test.
|
|
{"-0x8000000000000001", 0, false},
|
|
{"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
|
|
false}, // Overflow test.
|
|
{"FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
|
|
false}, // Overflow test.
|
|
{"0x0000000000000000", 0, true},
|
|
{"0000000000000000", 0, true},
|
|
{"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
|
|
false}, // Overflow test.
|
|
{"0x0f", 0x0f, true},
|
|
{"0f", 0x0f, true},
|
|
{" 45", 0x45, false},
|
|
{"\t\n\v\f\r 0x45", 0x45, false},
|
|
{" 45", 0x45, false},
|
|
{"45 ", 0x45, false},
|
|
{"45:", 0x45, false},
|
|
{"efgh", 0xef, false},
|
|
{"0xefgh", 0xef, false},
|
|
{"hgfe", 0, false},
|
|
{"-", 0, false},
|
|
{"", 0, false},
|
|
{"0x", 0, false},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
uint32_t output = 0;
|
|
EXPECT_EQ(cases[i].success, HexStringToUInt(cases[i].input, &output));
|
|
EXPECT_EQ(cases[i].output, output);
|
|
}
|
|
// One additional test to verify that conversion of numbers in strings with
|
|
// embedded NUL characters. The NUL and extra data after it should be
|
|
// interpreted as junk after the number.
|
|
const char input[] = "0xc0ffee\0" "9";
|
|
std::string input_string(input, arraysize(input) - 1);
|
|
uint32_t output;
|
|
EXPECT_FALSE(HexStringToUInt(input_string, &output));
|
|
EXPECT_EQ(0xc0ffeeU, output);
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, HexStringToInt64) {
|
|
static const struct {
|
|
std::string input;
|
|
int64_t output;
|
|
bool success;
|
|
} cases[] = {
|
|
{"0", 0, true},
|
|
{"42", 66, true},
|
|
{"-42", -66, true},
|
|
{"+42", 66, true},
|
|
{"40acd88557b", INT64_C(4444444448123), true},
|
|
{"7fffffff", INT_MAX, true},
|
|
{"-80000000", INT_MIN, true},
|
|
{"ffffffff", 0xffffffff, true},
|
|
{"DeadBeef", 0xdeadbeef, true},
|
|
{"0x42", 66, true},
|
|
{"-0x42", -66, true},
|
|
{"+0x42", 66, true},
|
|
{"0x40acd88557b", INT64_C(4444444448123), true},
|
|
{"0x7fffffff", INT_MAX, true},
|
|
{"-0x80000000", INT_MIN, true},
|
|
{"0xffffffff", 0xffffffff, true},
|
|
{"0XDeadBeef", 0xdeadbeef, true},
|
|
{"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true},
|
|
{"-0x8000000000000000", std::numeric_limits<int64_t>::min(), true},
|
|
{"0x8000000000000000", std::numeric_limits<int64_t>::max(),
|
|
false}, // Overflow test.
|
|
{"-0x8000000000000001", std::numeric_limits<int64_t>::min(),
|
|
false}, // Underflow test.
|
|
{"0x0f", 15, true},
|
|
{"0f", 15, true},
|
|
{" 45", 0x45, false},
|
|
{"\t\n\v\f\r 0x45", 0x45, false},
|
|
{" 45", 0x45, false},
|
|
{"45 ", 0x45, false},
|
|
{"45:", 0x45, false},
|
|
{"efgh", 0xef, false},
|
|
{"0xefgh", 0xef, false},
|
|
{"hgfe", 0, false},
|
|
{"-", 0, false},
|
|
{"", 0, false},
|
|
{"0x", 0, false},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
int64_t output = 0;
|
|
EXPECT_EQ(cases[i].success, HexStringToInt64(cases[i].input, &output));
|
|
EXPECT_EQ(cases[i].output, output);
|
|
}
|
|
// One additional test to verify that conversion of numbers in strings with
|
|
// embedded NUL characters. The NUL and extra data after it should be
|
|
// interpreted as junk after the number.
|
|
const char input[] = "0xc0ffee\0" "9";
|
|
std::string input_string(input, arraysize(input) - 1);
|
|
int64_t output;
|
|
EXPECT_FALSE(HexStringToInt64(input_string, &output));
|
|
EXPECT_EQ(0xc0ffee, output);
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, HexStringToUInt64) {
|
|
static const struct {
|
|
std::string input;
|
|
uint64_t output;
|
|
bool success;
|
|
} cases[] = {
|
|
{"0", 0, true},
|
|
{"42", 66, true},
|
|
{"-42", 0, false},
|
|
{"+42", 66, true},
|
|
{"40acd88557b", INT64_C(4444444448123), true},
|
|
{"7fffffff", INT_MAX, true},
|
|
{"-80000000", 0, false},
|
|
{"ffffffff", 0xffffffff, true},
|
|
{"DeadBeef", 0xdeadbeef, true},
|
|
{"0x42", 66, true},
|
|
{"-0x42", 0, false},
|
|
{"+0x42", 66, true},
|
|
{"0x40acd88557b", INT64_C(4444444448123), true},
|
|
{"0x7fffffff", INT_MAX, true},
|
|
{"-0x80000000", 0, false},
|
|
{"0xffffffff", 0xffffffff, true},
|
|
{"0XDeadBeef", 0xdeadbeef, true},
|
|
{"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true},
|
|
{"-0x8000000000000000", 0, false},
|
|
{"0x8000000000000000", UINT64_C(0x8000000000000000), true},
|
|
{"-0x8000000000000001", 0, false},
|
|
{"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true},
|
|
{"FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true},
|
|
{"0x0000000000000000", 0, true},
|
|
{"0000000000000000", 0, true},
|
|
{"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(),
|
|
false}, // Overflow test.
|
|
{"0x0f", 15, true},
|
|
{"0f", 15, true},
|
|
{" 45", 0x45, false},
|
|
{"\t\n\v\f\r 0x45", 0x45, false},
|
|
{" 45", 0x45, false},
|
|
{"45 ", 0x45, false},
|
|
{"45:", 0x45, false},
|
|
{"efgh", 0xef, false},
|
|
{"0xefgh", 0xef, false},
|
|
{"hgfe", 0, false},
|
|
{"-", 0, false},
|
|
{"", 0, false},
|
|
{"0x", 0, false},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
uint64_t output = 0;
|
|
EXPECT_EQ(cases[i].success, HexStringToUInt64(cases[i].input, &output));
|
|
EXPECT_EQ(cases[i].output, output);
|
|
}
|
|
// One additional test to verify that conversion of numbers in strings with
|
|
// embedded NUL characters. The NUL and extra data after it should be
|
|
// interpreted as junk after the number.
|
|
const char input[] = "0xc0ffee\0" "9";
|
|
std::string input_string(input, arraysize(input) - 1);
|
|
uint64_t output;
|
|
EXPECT_FALSE(HexStringToUInt64(input_string, &output));
|
|
EXPECT_EQ(0xc0ffeeU, output);
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, HexStringToBytes) {
|
|
static const struct {
|
|
const std::string input;
|
|
const char* output;
|
|
size_t output_len;
|
|
bool success;
|
|
} cases[] = {
|
|
{"0", "", 0, false}, // odd number of characters fails
|
|
{"00", "\0", 1, true},
|
|
{"42", "\x42", 1, true},
|
|
{"-42", "", 0, false}, // any non-hex value fails
|
|
{"+42", "", 0, false},
|
|
{"7fffffff", "\x7f\xff\xff\xff", 4, true},
|
|
{"80000000", "\x80\0\0\0", 4, true},
|
|
{"deadbeef", "\xde\xad\xbe\xef", 4, true},
|
|
{"DeadBeef", "\xde\xad\xbe\xef", 4, true},
|
|
{"0x42", "", 0, false}, // leading 0x fails (x is not hex)
|
|
{"0f", "\xf", 1, true},
|
|
{"45 ", "\x45", 1, false},
|
|
{"efgh", "\xef", 1, false},
|
|
{"", "", 0, false},
|
|
{"0123456789ABCDEF", "\x01\x23\x45\x67\x89\xAB\xCD\xEF", 8, true},
|
|
{"0123456789ABCDEF012345",
|
|
"\x01\x23\x45\x67\x89\xAB\xCD\xEF\x01\x23\x45", 11, true},
|
|
};
|
|
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
std::vector<uint8_t> output;
|
|
std::vector<uint8_t> compare;
|
|
EXPECT_EQ(cases[i].success, HexStringToBytes(cases[i].input, &output)) <<
|
|
i << ": " << cases[i].input;
|
|
for (size_t j = 0; j < cases[i].output_len; ++j)
|
|
compare.push_back(static_cast<uint8_t>(cases[i].output[j]));
|
|
ASSERT_EQ(output.size(), compare.size()) << i << ": " << cases[i].input;
|
|
EXPECT_TRUE(std::equal(output.begin(), output.end(), compare.begin())) <<
|
|
i << ": " << cases[i].input;
|
|
}
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, StringToDouble) {
|
|
static const struct {
|
|
std::string input;
|
|
double output;
|
|
bool success;
|
|
} cases[] = {
|
|
// Test different forms of zero.
|
|
{"0", 0.0, true},
|
|
{"+0", 0.0, true},
|
|
{"-0", 0.0, true},
|
|
{"0.0", 0.0, true},
|
|
{"000000000000000000000000000000.0", 0.0, true},
|
|
{"0.000000000000000000000000000", 0.0, true},
|
|
|
|
// Test the answer.
|
|
{"42", 42.0, true},
|
|
{"-42", -42.0, true},
|
|
|
|
// Test variances of an ordinary number.
|
|
{"123.45", 123.45, true},
|
|
{"-123.45", -123.45, true},
|
|
{"+123.45", 123.45, true},
|
|
|
|
// Test different forms of representation.
|
|
{"2.99792458e8", 299792458.0, true},
|
|
{"149597870.691E+3", 149597870691.0, true},
|
|
{"6.", 6.0, true},
|
|
|
|
// Test around the largest/smallest value that a double can represent.
|
|
{"9e307", 9e307, true},
|
|
{"1.7976e308", 1.7976e308, true},
|
|
{"1.7977e308", HUGE_VAL, false},
|
|
{"1.797693134862315807e+308", HUGE_VAL, true},
|
|
{"1.797693134862315808e+308", HUGE_VAL, false},
|
|
{"9e308", HUGE_VAL, false},
|
|
{"9e309", HUGE_VAL, false},
|
|
{"9e999", HUGE_VAL, false},
|
|
{"9e1999", HUGE_VAL, false},
|
|
{"9e19999", HUGE_VAL, false},
|
|
{"9e99999999999999999999", std::numeric_limits<double>::infinity(), false},
|
|
{"-9e99999999999999999999", -std::numeric_limits<double>::infinity(), false},
|
|
{"1e-2", 0.01, true},
|
|
{"42 ", 42.0, false},
|
|
{" 1e-2", 0.01, false},
|
|
{"1e-2 ", 0.01, false},
|
|
{"-1E-7", -0.0000001, true},
|
|
{"01e02", 100, true},
|
|
{"2.3e15", 2.3e15, true},
|
|
{"100e-309", 100e-309, true},
|
|
|
|
// Test some invalid cases.
|
|
{"\t\n\v\f\r -123.45e2", -12345.0, false},
|
|
{"+123 e4", 123.0, false},
|
|
{"123e ", 123.0, false},
|
|
{"123e", 123.0, false},
|
|
{" 2.99", 2.99, false},
|
|
{"1e3.4", 1000.0, false},
|
|
{"nothing", 0.0, false},
|
|
{"-", 0.0, false},
|
|
{"+", 0.0, false},
|
|
{"", 0.0, false},
|
|
|
|
// crbug.org/588726
|
|
{"-0.0010000000000000000000000000000000000000001e-256",
|
|
-1.0000000000000001e-259, true},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
double output;
|
|
errno = 1;
|
|
EXPECT_EQ(cases[i].success, StringToDouble(cases[i].input, &output))
|
|
<< "for input=" << cases[i].input << "got output=" << output;
|
|
if (cases[i].success)
|
|
EXPECT_EQ(1, errno) << i; // confirm that errno is unchanged.
|
|
EXPECT_DOUBLE_EQ(cases[i].output, output);
|
|
}
|
|
|
|
// One additional test to verify that conversion of numbers in strings with
|
|
// embedded NUL characters. The NUL and extra data after it should be
|
|
// interpreted as junk after the number.
|
|
const char input[] = "3.14\0" "159";
|
|
std::string input_string(input, arraysize(input) - 1);
|
|
double output;
|
|
EXPECT_FALSE(StringToDouble(input_string, &output));
|
|
EXPECT_DOUBLE_EQ(3.14, output);
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, DoubleToString) {
|
|
static const struct {
|
|
double input;
|
|
const char* expected;
|
|
} cases[] = {
|
|
{0.0, "0.0"},
|
|
{1.25, "1.25"},
|
|
{1.33518e+012, "1335180000000.0"},
|
|
{1.33489e+012, "1334890000000.0"},
|
|
{1.33505e+012, "1335050000000.0"},
|
|
{1.33545e+009, "1335450000.0"},
|
|
{1.33503e+009, "1335030000.0"},
|
|
};
|
|
|
|
for (size_t i = 0; i < arraysize(cases); ++i) {
|
|
EXPECT_EQ(cases[i].expected, NumberToString(cases[i].input));
|
|
EXPECT_EQ(cases[i].expected, UTF16ToUTF8(NumberToString16(cases[i].input)));
|
|
}
|
|
|
|
// The following two values were seen in crashes in the wild.
|
|
const char input_bytes[8] = {0, 0, 0, 0, '\xee', '\x6d', '\x73', '\x42'};
|
|
double input = 0;
|
|
memcpy(&input, input_bytes, arraysize(input_bytes));
|
|
EXPECT_EQ("1335179083776.0", NumberToString(input));
|
|
const char input_bytes2[8] =
|
|
{0, 0, 0, '\xa0', '\xda', '\x6c', '\x73', '\x42'};
|
|
input = 0;
|
|
memcpy(&input, input_bytes2, arraysize(input_bytes2));
|
|
EXPECT_EQ("1334890332160.0", NumberToString(input));
|
|
}
|
|
|
|
TEST(StringNumberConversionsTest, HexEncode) {
|
|
std::string hex(HexEncode(nullptr, 0));
|
|
EXPECT_EQ(hex.length(), 0U);
|
|
unsigned char bytes[] = {0x01, 0xff, 0x02, 0xfe, 0x03, 0x80, 0x81};
|
|
hex = HexEncode(bytes, sizeof(bytes));
|
|
EXPECT_EQ(hex.compare("01FF02FE038081"), 0);
|
|
}
|
|
|
|
// Test cases of known-bad strtod conversions that motivated the use of dmg_fp.
|
|
// See https://bugs.chromium.org/p/chromium/issues/detail?id=593512.
|
|
TEST(StringNumberConversionsTest, StrtodFailures) {
|
|
static const struct {
|
|
const char* input;
|
|
uint64_t expected;
|
|
} cases[] = {
|
|
// http://www.exploringbinary.com/incorrectly-rounded-conversions-in-visual-c-plus-plus/
|
|
{"9214843084008499", 0x43405e6cec57761aULL},
|
|
{"0.500000000000000166533453693773481063544750213623046875",
|
|
0x3fe0000000000002ULL},
|
|
{"30078505129381147446200", 0x44997a3c7271b021ULL},
|
|
{"1777820000000000000001", 0x4458180d5bad2e3eULL},
|
|
{"0.500000000000000166547006220929549868969843373633921146392822265625",
|
|
0x3fe0000000000002ULL},
|
|
{"0.50000000000000016656055874808561867439493653364479541778564453125",
|
|
0x3fe0000000000002ULL},
|
|
{"0.3932922657273", 0x3fd92bb352c4623aULL},
|
|
|
|
// http://www.exploringbinary.com/incorrectly-rounded-conversions-in-gcc-and-glibc/
|
|
{"0.500000000000000166533453693773481063544750213623046875",
|
|
0x3fe0000000000002ULL},
|
|
{"3.518437208883201171875e13", 0x42c0000000000002ULL},
|
|
{"62.5364939768271845828", 0x404f44abd5aa7ca4ULL},
|
|
{"8.10109172351e-10", 0x3e0bd5cbaef0fd0cULL},
|
|
{"1.50000000000000011102230246251565404236316680908203125",
|
|
0x3ff8000000000000ULL},
|
|
{"9007199254740991.4999999999999999999999999999999995",
|
|
0x433fffffffffffffULL},
|
|
|
|
// http://www.exploringbinary.com/incorrect-decimal-to-floating-point-conversion-in-sqlite/
|
|
{"1e-23", 0x3b282db34012b251ULL},
|
|
{"8.533e+68", 0x4e3fa69165a8eea2ULL},
|
|
{"4.1006e-184", 0x19dbe0d1c7ea60c9ULL},
|
|
{"9.998e+307", 0x7fe1cc0a350ca87bULL},
|
|
{"9.9538452227e-280", 0x0602117ae45cde43ULL},
|
|
{"6.47660115e-260", 0x0a1fdd9e333badadULL},
|
|
{"7.4e+47", 0x49e033d7eca0adefULL},
|
|
{"5.92e+48", 0x4a1033d7eca0adefULL},
|
|
{"7.35e+66", 0x4dd172b70eababa9ULL},
|
|
{"8.32116e+55", 0x4b8b2628393e02cdULL},
|
|
};
|
|
|
|
for (const auto& test : cases) {
|
|
double output;
|
|
EXPECT_TRUE(StringToDouble(test.input, &output));
|
|
EXPECT_EQ(bit_cast<uint64_t>(output), test.expected);
|
|
}
|
|
}
|
|
|
|
} // namespace base
|