Abseil Common Libraries (C++) (grcp 依赖) https://abseil.io/
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Export of internal Abseil changes -- f012012ef78234a6a4585321b67d7b7c92ebc266 by Laramie Leavitt <lar@google.com>: Slight restructuring of absl/random/internal randen implementation. Convert round-keys.inc into randen_round_keys.cc file. Consistently use a 128-bit pointer type for internal method parameters. This allows simpler pointer arithmetic in C++ & permits removal of some constants and casts. Remove some redundancy in comments & constexpr variables. Specifically, all references to Randen algorithm parameters use RandenTraits; duplication in RandenSlow removed. PiperOrigin-RevId: 312190313 -- dc8b42e054046741e9ed65335bfdface997c6063 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 312167304 -- f13d248fafaf206492c1362c3574031aea3abaf7 by Matthew Brown <matthewbr@google.com>: Cleanup StrFormat extensions a little. PiperOrigin-RevId: 312166336 -- 9d9117589667afe2332bb7ad42bc967ca7c54502 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 312105213 -- 9a12b9b3aa0e59b8ee6cf9408ed0029045543a9b by Abseil Team <absl-team@google.com>: Complete IGNORE_TYPE macro renaming. PiperOrigin-RevId: 311999699 -- 64756f20d61021d999bd0d4c15e9ad3857382f57 by Gennadiy Rozental <rogeeff@google.com>: Switch to fixed bytes specific default value. This fixes the Abseil Flags for big endian platforms. PiperOrigin-RevId: 311844448 -- bdbe6b5b29791dbc3816ada1828458b3010ff1e9 by Laramie Leavitt <lar@google.com>: Change many distribution tests to use pcg_engine as a deterministic source of entropy. It's reasonable to test that the BitGen itself has good entropy, however when testing the cross product of all random distributions x all the architecture variations x all submitted changes results in a large number of tests. In order to account for these failures while still using good entropy requires that our allowed sigma need to account for all of these independent tests. Our current sigma values are too restrictive, and we see a lot of failures, so we have to either relax the sigma values or convert some of the statistical tests to use deterministic values. This changelist does the latter. PiperOrigin-RevId: 311840096 GitOrigin-RevId: f012012ef78234a6a4585321b67d7b7c92ebc266 Change-Id: Ic84886f38ff30d7d72c126e9b63c9a61eb729a1a
5 years ago
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Unit tests for all str_cat.h functions
#include "absl/strings/str_cat.h"
#include <cstdint>
#include <string>
#include <vector>
#include "gtest/gtest.h"
#include "absl/strings/substitute.h"
#ifdef __ANDROID__
// Android assert messages only go to system log, so death tests cannot inspect
// the message for matching.
#define ABSL_EXPECT_DEBUG_DEATH(statement, regex) \
EXPECT_DEBUG_DEATH(statement, ".*")
#else
#define ABSL_EXPECT_DEBUG_DEATH(statement, regex) \
EXPECT_DEBUG_DEATH(statement, regex)
#endif
namespace {
// Test absl::StrCat of ints and longs of various sizes and signdedness.
TEST(StrCat, Ints) {
const short s = -1; // NOLINT(runtime/int)
const uint16_t us = 2;
const int i = -3;
const unsigned int ui = 4;
const long l = -5; // NOLINT(runtime/int)
const unsigned long ul = 6; // NOLINT(runtime/int)
const long long ll = -7; // NOLINT(runtime/int)
const unsigned long long ull = 8; // NOLINT(runtime/int)
const ptrdiff_t ptrdiff = -9;
const size_t size = 10;
const intptr_t intptr = -12;
const uintptr_t uintptr = 13;
std::string answer;
answer = absl::StrCat(s, us);
EXPECT_EQ(answer, "-12");
answer = absl::StrCat(i, ui);
EXPECT_EQ(answer, "-34");
answer = absl::StrCat(l, ul);
EXPECT_EQ(answer, "-56");
answer = absl::StrCat(ll, ull);
EXPECT_EQ(answer, "-78");
answer = absl::StrCat(ptrdiff, size);
EXPECT_EQ(answer, "-910");
answer = absl::StrCat(ptrdiff, intptr);
EXPECT_EQ(answer, "-9-12");
answer = absl::StrCat(uintptr, 0);
EXPECT_EQ(answer, "130");
}
TEST(StrCat, Enums) {
enum SmallNumbers { One = 1, Ten = 10 } e = Ten;
EXPECT_EQ("10", absl::StrCat(e));
EXPECT_EQ("-5", absl::StrCat(SmallNumbers(-5)));
enum class Option { Boxers = 1, Briefs = -1 };
EXPECT_EQ("-1", absl::StrCat(Option::Briefs));
enum class Airplane : uint64_t {
Airbus = 1,
Boeing = 1000,
Canary = 10000000000 // too big for "int"
};
EXPECT_EQ("10000000000", absl::StrCat(Airplane::Canary));
enum class TwoGig : int32_t {
TwoToTheZero = 1,
TwoToTheSixteenth = 1 << 16,
TwoToTheThirtyFirst = INT32_MIN
};
EXPECT_EQ("65536", absl::StrCat(TwoGig::TwoToTheSixteenth));
EXPECT_EQ("-2147483648", absl::StrCat(TwoGig::TwoToTheThirtyFirst));
EXPECT_EQ("-1", absl::StrCat(static_cast<TwoGig>(-1)));
enum class FourGig : uint32_t {
TwoToTheZero = 1,
TwoToTheSixteenth = 1 << 16,
TwoToTheThirtyFirst = 1U << 31 // too big for "int"
};
EXPECT_EQ("65536", absl::StrCat(FourGig::TwoToTheSixteenth));
EXPECT_EQ("2147483648", absl::StrCat(FourGig::TwoToTheThirtyFirst));
EXPECT_EQ("4294967295", absl::StrCat(static_cast<FourGig>(-1)));
EXPECT_EQ("10000000000", absl::StrCat(Airplane::Canary));
}
TEST(StrCat, Basics) {
std::string result;
std::string strs[] = {"Hello", "Cruel", "World"};
std::string stdstrs[] = {
"std::Hello",
"std::Cruel",
"std::World"
};
absl::string_view pieces[] = {"Hello", "Cruel", "World"};
const char* c_strs[] = {
"Hello",
"Cruel",
"World"
};
int32_t i32s[] = {'H', 'C', 'W'};
uint64_t ui64s[] = {12345678910LL, 10987654321LL};
EXPECT_EQ(absl::StrCat(), "");
result = absl::StrCat(false, true, 2, 3);
EXPECT_EQ(result, "0123");
result = absl::StrCat(-1);
EXPECT_EQ(result, "-1");
result = absl::StrCat(absl::SixDigits(0.5));
EXPECT_EQ(result, "0.5");
result = absl::StrCat(strs[1], pieces[2]);
EXPECT_EQ(result, "CruelWorld");
result = absl::StrCat(stdstrs[1], " ", stdstrs[2]);
EXPECT_EQ(result, "std::Cruel std::World");
result = absl::StrCat(strs[0], ", ", pieces[2]);
EXPECT_EQ(result, "Hello, World");
result = absl::StrCat(strs[0], ", ", strs[1], " ", strs[2], "!");
EXPECT_EQ(result, "Hello, Cruel World!");
result = absl::StrCat(pieces[0], ", ", pieces[1], " ", pieces[2]);
EXPECT_EQ(result, "Hello, Cruel World");
result = absl::StrCat(c_strs[0], ", ", c_strs[1], " ", c_strs[2]);
EXPECT_EQ(result, "Hello, Cruel World");
result = absl::StrCat("ASCII ", i32s[0], ", ", i32s[1], " ", i32s[2], "!");
EXPECT_EQ(result, "ASCII 72, 67 87!");
result = absl::StrCat(ui64s[0], ", ", ui64s[1], "!");
EXPECT_EQ(result, "12345678910, 10987654321!");
std::string one =
"1"; // Actually, it's the size of this string that we want; a
// 64-bit build distinguishes between size_t and uint64_t,
// even though they're both unsigned 64-bit values.
result = absl::StrCat("And a ", one.size(), " and a ",
&result[2] - &result[0], " and a ", one, " 2 3 4", "!");
EXPECT_EQ(result, "And a 1 and a 2 and a 1 2 3 4!");
// result = absl::StrCat("Single chars won't compile", '!');
// result = absl::StrCat("Neither will nullptrs", nullptr);
result =
absl::StrCat("To output a char by ASCII/numeric value, use +: ", '!' + 0);
EXPECT_EQ(result, "To output a char by ASCII/numeric value, use +: 33");
float f = 100000.5;
result = absl::StrCat("A hundred K and a half is ", absl::SixDigits(f));
EXPECT_EQ(result, "A hundred K and a half is 100000");
f = 100001.5;
result =
absl::StrCat("A hundred K and one and a half is ", absl::SixDigits(f));
EXPECT_EQ(result, "A hundred K and one and a half is 100002");
double d = 100000.5;
d *= d;
result =
absl::StrCat("A hundred K and a half squared is ", absl::SixDigits(d));
EXPECT_EQ(result, "A hundred K and a half squared is 1.00001e+10");
result = absl::StrCat(1, 2, 333, 4444, 55555, 666666, 7777777, 88888888,
999999999);
EXPECT_EQ(result, "12333444455555666666777777788888888999999999");
}
TEST(StrCat, CornerCases) {
std::string result;
result = absl::StrCat(""); // NOLINT
EXPECT_EQ(result, "");
result = absl::StrCat("", "");
EXPECT_EQ(result, "");
result = absl::StrCat("", "", "");
EXPECT_EQ(result, "");
result = absl::StrCat("", "", "", "");
EXPECT_EQ(result, "");
result = absl::StrCat("", "", "", "", "");
EXPECT_EQ(result, "");
}
// A minimal allocator that uses malloc().
template <typename T>
struct Mallocator {
typedef T value_type;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
size_type max_size() const {
return size_t(std::numeric_limits<size_type>::max()) / sizeof(value_type);
}
template <typename U>
struct rebind {
typedef Mallocator<U> other;
};
Mallocator() = default;
template <class U>
Mallocator(const Mallocator<U>&) {} // NOLINT(runtime/explicit)
T* allocate(size_t n) { return static_cast<T*>(std::malloc(n * sizeof(T))); }
void deallocate(T* p, size_t) { std::free(p); }
};
template <typename T, typename U>
bool operator==(const Mallocator<T>&, const Mallocator<U>&) {
return true;
}
template <typename T, typename U>
bool operator!=(const Mallocator<T>&, const Mallocator<U>&) {
return false;
}
TEST(StrCat, CustomAllocator) {
using mstring =
std::basic_string<char, std::char_traits<char>, Mallocator<char>>;
const mstring str1("PARACHUTE OFF A BLIMP INTO MOSCONE!!");
const mstring str2("Read this book about coffee tables");
std::string result = absl::StrCat(str1, str2);
EXPECT_EQ(result,
"PARACHUTE OFF A BLIMP INTO MOSCONE!!"
"Read this book about coffee tables");
}
TEST(StrCat, MaxArgs) {
std::string result;
// Test 10 up to 26 arguments, the old maximum
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a");
EXPECT_EQ(result, "123456789a");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b");
EXPECT_EQ(result, "123456789ab");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c");
EXPECT_EQ(result, "123456789abc");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d");
EXPECT_EQ(result, "123456789abcd");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e");
EXPECT_EQ(result, "123456789abcde");
result =
absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f");
EXPECT_EQ(result, "123456789abcdef");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g");
EXPECT_EQ(result, "123456789abcdefg");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h");
EXPECT_EQ(result, "123456789abcdefgh");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i");
EXPECT_EQ(result, "123456789abcdefghi");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j");
EXPECT_EQ(result, "123456789abcdefghij");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k");
EXPECT_EQ(result, "123456789abcdefghijk");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l");
EXPECT_EQ(result, "123456789abcdefghijkl");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m");
EXPECT_EQ(result, "123456789abcdefghijklm");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m", "n");
EXPECT_EQ(result, "123456789abcdefghijklmn");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m", "n", "o");
EXPECT_EQ(result, "123456789abcdefghijklmno");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m", "n", "o", "p");
EXPECT_EQ(result, "123456789abcdefghijklmnop");
result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q");
EXPECT_EQ(result, "123456789abcdefghijklmnopq");
// No limit thanks to C++11's variadic templates
result = absl::StrCat(
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, "a", "b", "c", "d", "e", "f", "g", "h",
"i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w",
"x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L",
"M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z");
EXPECT_EQ(result,
"12345678910abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
}
TEST(StrAppend, Basics) {
std::string result = "existing text";
std::string strs[] = {"Hello", "Cruel", "World"};
std::string stdstrs[] = {
"std::Hello",
"std::Cruel",
"std::World"
};
absl::string_view pieces[] = {"Hello", "Cruel", "World"};
const char* c_strs[] = {
"Hello",
"Cruel",
"World"
};
int32_t i32s[] = {'H', 'C', 'W'};
uint64_t ui64s[] = {12345678910LL, 10987654321LL};
std::string::size_type old_size = result.size();
absl::StrAppend(&result);
EXPECT_EQ(result.size(), old_size);
old_size = result.size();
absl::StrAppend(&result, strs[0]);
EXPECT_EQ(result.substr(old_size), "Hello");
old_size = result.size();
absl::StrAppend(&result, strs[1], pieces[2]);
EXPECT_EQ(result.substr(old_size), "CruelWorld");
old_size = result.size();
absl::StrAppend(&result, stdstrs[0], ", ", pieces[2]);
EXPECT_EQ(result.substr(old_size), "std::Hello, World");
old_size = result.size();
absl::StrAppend(&result, strs[0], ", ", stdstrs[1], " ", strs[2], "!");
EXPECT_EQ(result.substr(old_size), "Hello, std::Cruel World!");
old_size = result.size();
absl::StrAppend(&result, pieces[0], ", ", pieces[1], " ", pieces[2]);
EXPECT_EQ(result.substr(old_size), "Hello, Cruel World");
old_size = result.size();
absl::StrAppend(&result, c_strs[0], ", ", c_strs[1], " ", c_strs[2]);
EXPECT_EQ(result.substr(old_size), "Hello, Cruel World");
old_size = result.size();
absl::StrAppend(&result, "ASCII ", i32s[0], ", ", i32s[1], " ", i32s[2], "!");
EXPECT_EQ(result.substr(old_size), "ASCII 72, 67 87!");
old_size = result.size();
absl::StrAppend(&result, ui64s[0], ", ", ui64s[1], "!");
EXPECT_EQ(result.substr(old_size), "12345678910, 10987654321!");
std::string one =
"1"; // Actually, it's the size of this string that we want; a
// 64-bit build distinguishes between size_t and uint64_t,
// even though they're both unsigned 64-bit values.
old_size = result.size();
absl::StrAppend(&result, "And a ", one.size(), " and a ",
&result[2] - &result[0], " and a ", one, " 2 3 4", "!");
EXPECT_EQ(result.substr(old_size), "And a 1 and a 2 and a 1 2 3 4!");
// result = absl::StrCat("Single chars won't compile", '!');
// result = absl::StrCat("Neither will nullptrs", nullptr);
old_size = result.size();
absl::StrAppend(&result,
"To output a char by ASCII/numeric value, use +: ", '!' + 0);
EXPECT_EQ(result.substr(old_size),
"To output a char by ASCII/numeric value, use +: 33");
// Test 9 arguments, the old maximum
old_size = result.size();
absl::StrAppend(&result, 1, 22, 333, 4444, 55555, 666666, 7777777, 88888888,
9);
EXPECT_EQ(result.substr(old_size), "1223334444555556666667777777888888889");
// No limit thanks to C++11's variadic templates
old_size = result.size();
absl::StrAppend(
&result, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, //
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", //
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", //
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", //
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", //
"No limit thanks to C++11's variadic templates");
EXPECT_EQ(result.substr(old_size),
"12345678910abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
"No limit thanks to C++11's variadic templates");
}
TEST(StrCat, VectorBoolReferenceTypes) {
std::vector<bool> v;
v.push_back(true);
v.push_back(false);
std::vector<bool> const& cv = v;
// Test that vector<bool>::reference and vector<bool>::const_reference
// are handled as if the were really bool types and not the proxy types
// they really are.
std::string result = absl::StrCat(v[0], v[1], cv[0], cv[1]); // NOLINT
EXPECT_EQ(result, "1010");
}
// Passing nullptr to memcpy is undefined behavior and this test
// provides coverage of codepaths that handle empty strings with nullptrs.
TEST(StrCat, AvoidsMemcpyWithNullptr) {
EXPECT_EQ(absl::StrCat(42, absl::string_view{}), "42");
// Cover CatPieces code.
EXPECT_EQ(absl::StrCat(1, 2, 3, 4, 5, absl::string_view{}), "12345");
// Cover AppendPieces.
std::string result;
absl::StrAppend(&result, 1, 2, 3, 4, 5, absl::string_view{});
EXPECT_EQ(result, "12345");
}
#ifdef GTEST_HAS_DEATH_TEST
TEST(StrAppend, Death) {
std::string s = "self";
// on linux it's "assertion", on mac it's "Assertion",
// on chromiumos it's "Assertion ... failed".
ABSL_EXPECT_DEBUG_DEATH(absl::StrAppend(&s, s.c_str() + 1),
"ssertion.*failed");
ABSL_EXPECT_DEBUG_DEATH(absl::StrAppend(&s, s), "ssertion.*failed");
}
#endif // GTEST_HAS_DEATH_TEST
TEST(StrAppend, CornerCases) {
std::string result;
absl::StrAppend(&result, "");
EXPECT_EQ(result, "");
absl::StrAppend(&result, "", "");
EXPECT_EQ(result, "");
absl::StrAppend(&result, "", "", "");
EXPECT_EQ(result, "");
absl::StrAppend(&result, "", "", "", "");
EXPECT_EQ(result, "");
absl::StrAppend(&result, "", "", "", "", "");
EXPECT_EQ(result, "");
}
TEST(StrAppend, CornerCasesNonEmptyAppend) {
for (std::string result : {"hello", "a string too long to fit in the SSO"}) {
const std::string expected = result;
absl::StrAppend(&result, "");
EXPECT_EQ(result, expected);
absl::StrAppend(&result, "", "");
EXPECT_EQ(result, expected);
absl::StrAppend(&result, "", "", "");
EXPECT_EQ(result, expected);
absl::StrAppend(&result, "", "", "", "");
EXPECT_EQ(result, expected);
absl::StrAppend(&result, "", "", "", "", "");
EXPECT_EQ(result, expected);
}
}
template <typename IntType>
void CheckHex(IntType v, const char* nopad_format, const char* zeropad_format,
const char* spacepad_format) {
char expected[256];
std::string actual = absl::StrCat(absl::Hex(v, absl::kNoPad));
snprintf(expected, sizeof(expected), nopad_format, v);
EXPECT_EQ(expected, actual) << " decimal value " << v;
for (int spec = absl::kZeroPad2; spec <= absl::kZeroPad20; ++spec) {
std::string actual =
absl::StrCat(absl::Hex(v, static_cast<absl::PadSpec>(spec)));
snprintf(expected, sizeof(expected), zeropad_format,
spec - absl::kZeroPad2 + 2, v);
EXPECT_EQ(expected, actual) << " decimal value " << v;
}
for (int spec = absl::kSpacePad2; spec <= absl::kSpacePad20; ++spec) {
std::string actual =
absl::StrCat(absl::Hex(v, static_cast<absl::PadSpec>(spec)));
snprintf(expected, sizeof(expected), spacepad_format,
spec - absl::kSpacePad2 + 2, v);
EXPECT_EQ(expected, actual) << " decimal value " << v;
}
}
template <typename IntType>
void CheckDec(IntType v, const char* nopad_format, const char* zeropad_format,
const char* spacepad_format) {
char expected[256];
std::string actual = absl::StrCat(absl::Dec(v, absl::kNoPad));
snprintf(expected, sizeof(expected), nopad_format, v);
EXPECT_EQ(expected, actual) << " decimal value " << v;
for (int spec = absl::kZeroPad2; spec <= absl::kZeroPad20; ++spec) {
std::string actual =
absl::StrCat(absl::Dec(v, static_cast<absl::PadSpec>(spec)));
snprintf(expected, sizeof(expected), zeropad_format,
spec - absl::kZeroPad2 + 2, v);
EXPECT_EQ(expected, actual)
<< " decimal value " << v << " format '" << zeropad_format
<< "' digits " << (spec - absl::kZeroPad2 + 2);
}
for (int spec = absl::kSpacePad2; spec <= absl::kSpacePad20; ++spec) {
std::string actual =
absl::StrCat(absl::Dec(v, static_cast<absl::PadSpec>(spec)));
snprintf(expected, sizeof(expected), spacepad_format,
spec - absl::kSpacePad2 + 2, v);
EXPECT_EQ(expected, actual)
<< " decimal value " << v << " format '" << spacepad_format
<< "' digits " << (spec - absl::kSpacePad2 + 2);
}
}
void CheckHexDec64(uint64_t v) {
unsigned long long ullv = v; // NOLINT(runtime/int)
CheckHex(ullv, "%llx", "%0*llx", "%*llx");
CheckDec(ullv, "%llu", "%0*llu", "%*llu");
long long llv = static_cast<long long>(ullv); // NOLINT(runtime/int)
CheckDec(llv, "%lld", "%0*lld", "%*lld");
if (sizeof(v) == sizeof(&v)) {
auto uintptr = static_cast<uintptr_t>(v);
void* ptr = reinterpret_cast<void*>(uintptr);
CheckHex(ptr, "%llx", "%0*llx", "%*llx");
}
}
void CheckHexDec32(uint32_t uv) {
CheckHex(uv, "%x", "%0*x", "%*x");
CheckDec(uv, "%u", "%0*u", "%*u");
int32_t v = static_cast<int32_t>(uv);
CheckDec(v, "%d", "%0*d", "%*d");
if (sizeof(v) == sizeof(&v)) {
auto uintptr = static_cast<uintptr_t>(v);
void* ptr = reinterpret_cast<void*>(uintptr);
CheckHex(ptr, "%x", "%0*x", "%*x");
}
}
void CheckAll(uint64_t v) {
CheckHexDec64(v);
CheckHexDec32(static_cast<uint32_t>(v));
}
void TestFastPrints() {
// Test all small ints; there aren't many and they're common.
for (int i = 0; i < 10000; i++) {
CheckAll(i);
}
CheckAll(std::numeric_limits<uint64_t>::max());
CheckAll(std::numeric_limits<uint64_t>::max() - 1);
CheckAll(std::numeric_limits<int64_t>::min());
CheckAll(std::numeric_limits<int64_t>::min() + 1);
CheckAll(std::numeric_limits<uint32_t>::max());
CheckAll(std::numeric_limits<uint32_t>::max() - 1);
CheckAll(std::numeric_limits<int32_t>::min());
CheckAll(std::numeric_limits<int32_t>::min() + 1);
CheckAll(999999999); // fits in 32 bits
CheckAll(1000000000); // fits in 32 bits
CheckAll(9999999999); // doesn't fit in 32 bits
CheckAll(10000000000); // doesn't fit in 32 bits
CheckAll(999999999999999999); // fits in signed 64-bit
CheckAll(9999999999999999999u); // fits in unsigned 64-bit, but not signed.
CheckAll(1000000000000000000); // fits in signed 64-bit
CheckAll(10000000000000000000u); // fits in unsigned 64-bit, but not signed.
CheckAll(999999999876543210); // check all decimal digits, signed
CheckAll(9999999999876543210u); // check all decimal digits, unsigned.
CheckAll(0x123456789abcdef0); // check all hex digits
CheckAll(0x12345678);
int8_t minus_one_8bit = -1;
EXPECT_EQ("ff", absl::StrCat(absl::Hex(minus_one_8bit)));
int16_t minus_one_16bit = -1;
EXPECT_EQ("ffff", absl::StrCat(absl::Hex(minus_one_16bit)));
}
TEST(Numbers, TestFunctionsMovedOverFromNumbersMain) {
TestFastPrints();
}
} // namespace