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Changes imported from Abseil "staging" branch:

Browse source 
- 8320b38cd9f4f271fb6b278bd1e10d93f6ac3856 Use overloads for int32/int64/uint32/uint64 rather than i... by Jorg Brown <jorg@google.com>
  - f8b582b8deb3f78a3c6de2114b3ec4640f5427dd Internal change by Juemin Yang <jueminyang@google.com>
  - 240ff55ebf493ab1233ebe6976853a5fa2b3ec46 Remove the internal LowLevelAlloc's dependence on kLinker... by Greg Falcon <gfalcon@google.com>

GitOrigin-RevId: 8320b38cd9f4f271fb6b278bd1e10d93f6ac3856
Change-Id: If5004efa2b43856948390ab357b8e9403e4461b4
This commit is contained in:
Abseil Team 2017-12-14 12:36:12 -08:00 • committed by Titus Winters
parent 720c017e30
commit 6280bddf55
5 changed files with 233 additions and 181 deletions
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74
absl/strings/numbers_test.cc
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@ -110,13 +110,38 @@ TEST(ToString, PerfectDtoa) {
}
}
template <typename integer>
struct MyInteger {
integer i;
explicit constexpr MyInteger(integer i) : i(i) {}
constexpr operator integer() const { return i; }
constexpr MyInteger operator+(MyInteger other) const { return i + other.i; }
constexpr MyInteger operator-(MyInteger other) const { return i - other.i; }
constexpr MyInteger operator*(MyInteger other) const { return i * other.i; }
constexpr MyInteger operator/(MyInteger other) const { return i / other.i; }
constexpr bool operator<(MyInteger other) const { return i < other.i; }
constexpr bool operator<=(MyInteger other) const { return i <= other.i; }
constexpr bool operator==(MyInteger other) const { return i == other.i; }
constexpr bool operator>=(MyInteger other) const { return i >= other.i; }
constexpr bool operator>(MyInteger other) const { return i > other.i; }
constexpr bool operator!=(MyInteger other) const { return i != other.i; }
integer as_integer() const { return i; }
};
typedef MyInteger<int64_t> MyInt64;
typedef MyInteger<uint64_t> MyUInt64;
void CheckInt32(int32_t x) {
char buffer[absl::numbers_internal::kFastToBufferSize];
char* actual = absl::numbers_internal::FastInt32ToBuffer(x, buffer);
char* actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
std::string expected = std::to_string(x);
ASSERT_TRUE(expected == std::string(buffer, actual))
<< "Expected \"" << expected << "\", Actual \"" << actual << "\", Input "
<< x;
EXPECT_EQ(expected, std::string(buffer, actual)) << " Input " << x;
char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
EXPECT_EQ(expected, std::string(buffer, generic_actual)) << " Input " << x;
}
void CheckInt64(int64_t x) {
@ -124,40 +149,47 @@ void CheckInt64(int64_t x) {
buffer[0] = '*';
buffer[23] = '*';
buffer[24] = '*';
char* actual = absl::numbers_internal::FastInt64ToBuffer(x, &buffer[1]);
char* actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
std::string expected = std::to_string(x);
ASSERT_TRUE(expected == std::string(&buffer[1], actual))
<< "Expected \"" << expected << "\", Actual \"" << actual << "\", Input "
<< x;
ASSERT_EQ(buffer[0], '*');
ASSERT_EQ(buffer[23], '*');
ASSERT_EQ(buffer[24], '*');
EXPECT_EQ(expected, std::string(&buffer[1], actual)) << " Input " << x;
EXPECT_EQ(buffer[0], '*');
EXPECT_EQ(buffer[23], '*');
EXPECT_EQ(buffer[24], '*');
char* my_actual =
absl::numbers_internal::FastIntToBuffer(MyInt64(x), &buffer[1]);
EXPECT_EQ(expected, std::string(&buffer[1], my_actual)) << " Input " << x;
}
void CheckUInt32(uint32_t x) {
char buffer[absl::numbers_internal::kFastToBufferSize];
char* actual = absl::numbers_internal::FastUInt32ToBuffer(x, buffer);
char* actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
std::string expected = std::to_string(x);
ASSERT_TRUE(expected == std::string(buffer, actual))
<< "Expected \"" << expected << "\", Actual \"" << actual << "\", Input "
<< x;
EXPECT_EQ(expected, std::string(buffer, actual)) << " Input " << x;
char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
EXPECT_EQ(expected, std::string(buffer, generic_actual)) << " Input " << x;
}
void CheckUInt64(uint64_t x) {
char buffer[absl::numbers_internal::kFastToBufferSize + 1];
char* actual = absl::numbers_internal::FastUInt64ToBuffer(x, &buffer[1]);
char* actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
std::string expected = std::to_string(x);
ASSERT_TRUE(expected == std::string(&buffer[1], actual))
<< "Expected \"" << expected << "\", Actual \"" << actual << "\", Input "
<< x;
EXPECT_EQ(expected, std::string(&buffer[1], actual)) << " Input " << x;
char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
EXPECT_EQ(expected, std::string(&buffer[1], generic_actual)) << " Input " << x;
char* my_actual =
absl::numbers_internal::FastIntToBuffer(MyUInt64(x), &buffer[1]);
EXPECT_EQ(expected, std::string(&buffer[1], my_actual)) << " Input " << x;
}
void CheckHex64(uint64_t v) {
char expected[16 + 1];
std::string actual = absl::StrCat(absl::Hex(v, absl::kZeroPad16));
snprintf(expected, sizeof(expected), "%016" PRIx64, static_cast<uint64_t>(v));
ASSERT_TRUE(expected == actual)
<< "Expected \"" << expected << "\", Actual \"" << actual << "\"";
EXPECT_EQ(expected, actual) << " Input " << v;
}
TEST(Numbers, TestFastPrints) {