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authorLaszlo Agocs <laszlo.agocs@qt.io>2020-05-18 15:16:30 +0200
committerLaszlo Agocs <laszlo.agocs@qt.io>2020-05-26 15:11:40 +0200
commit752497910b67b2a1a80560840ca44548d8893434 (patch)
tree541501c9abfd97c3d2fa450d2e6abb60582c4420 /src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc
parent7db527dbdd911c79f31425d099d1fc9c63e42453 (diff)
Remove ANGLE
This marks the end of EGL and OpenGL ES support on Windows. The concepts of -opengl dynamic, -opengl desktop, QT_OPENGL=software, etc. remain unchanged, with the exception of the disapperance of everything ANGLE related. CMake builds now work identically to qmake on Windows: they default to 'dynamic' OpenGL on Windows, unless -DINPUT_opengl=desktop is specified. On Windows, Qt 6 is expected to default to the "dynamic" OpenGL model by default, just like Qt 5.15. This can be changed by switching to "desktop" OpenGL, which will link to opengl32 (publicly, so other libs and applications will do so as well) and disallows using another OpenGL DLL. The "dynamic" mode is essential still because the fallback to a software rasterizer, such as the opengl32sw.dll we ship with the Qt packages, has to to work exactly like in Qt 5, the removal of ANGLE does not change this concept in any way (except of course that the middle option of using ANGLE is now gone) When it comes to the windows plugin's OpenGL blacklist feature, it works like before and accepts the ANGLE/D3D related keywords. They will then be ignored. Similarly, requesting QT_OPENGL=angle is ignored (but will show a warning). The D3D11 and DXGI configure time tests are removed: Qt 5.14 already depends on D3D 11.1 and DXGI 1.3 headers being available unconditionally on Win32 (in QRhi's D3D11 backend). No need to test for these. [ChangeLog][Windows] ANGLE is no longer included with Qt. Dynamic OpenGL builds work like before but ANGLE is no longer an option. OpenGL proper or an alternative opengl32 implementation are the two remaining options now. Attempting to set QT_OPENGL=angle or Qt::AA_UseOpenGLES will have no effect on Windows. Fixes: QTBUG-79103 Change-Id: Ia404e0d07f3fe191b27434d863c81180112ecb3b Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Diffstat (limited to 'src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc')
-rw-r--r--src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc771
1 files changed, 0 insertions, 771 deletions
diff --git a/src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc b/src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc
deleted file mode 100644
index 052d850427..0000000000
--- a/src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_numerics_unittest.cc
+++ /dev/null
@@ -1,771 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <limits>
-#include <type_traits>
-
-#include "base/compiler_specific.h"
-#include "base/numerics/safe_conversions.h"
-#include "base/numerics/safe_math.h"
-#include "build/build_config.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#if defined(COMPILER_MSVC) && defined(ARCH_CPU_32_BITS)
-#include <mmintrin.h>
-#endif
-
-using std::numeric_limits;
-using base::CheckedNumeric;
-using base::checked_cast;
-using base::IsValueInRangeForNumericType;
-using base::IsValueNegative;
-using base::SizeT;
-using base::StrictNumeric;
-using base::saturated_cast;
-using base::strict_cast;
-using base::internal::MaxExponent;
-using base::internal::RANGE_VALID;
-using base::internal::RANGE_INVALID;
-using base::internal::RANGE_OVERFLOW;
-using base::internal::RANGE_UNDERFLOW;
-using base::internal::SignedIntegerForSize;
-
-// These tests deliberately cause arithmetic overflows. If the compiler is
-// aggressive enough, it can const fold these overflows. Disable warnings about
-// overflows for const expressions.
-#if defined(OS_WIN)
-#pragma warning(disable : 4756)
-#endif
-
-// This is a helper function for finding the maximum value in Src that can be
-// wholy represented as the destination floating-point type.
-template <typename Dst, typename Src>
-Dst GetMaxConvertibleToFloat()
-{
- typedef numeric_limits<Dst> DstLimits;
- typedef numeric_limits<Src> SrcLimits;
- static_assert(SrcLimits::is_specialized, "Source must be numeric.");
- static_assert(DstLimits::is_specialized, "Destination must be numeric.");
- CHECK(DstLimits::is_iec559);
-
- if (SrcLimits::digits <= DstLimits::digits &&
- MaxExponent<Src>::value <= MaxExponent<Dst>::value)
- return SrcLimits::max();
- Src max = SrcLimits::max() / 2 + (SrcLimits::is_integer ? 1 : 0);
- while (max != static_cast<Src>(static_cast<Dst>(max)))
- {
- max /= 2;
- }
- return static_cast<Dst>(max);
-}
-
-// Helper macros to wrap displaying the conversion types and line numbers.
-#define TEST_EXPECTED_VALIDITY(expected, actual) \
- EXPECT_EQ(expected, CheckedNumeric<Dst>(actual).IsValid()) \
- << "Result test: Value " << +(actual).ValueUnsafe() << " as " << dst << " on line " \
- << line;
-
-#define TEST_EXPECTED_SUCCESS(actual) TEST_EXPECTED_VALIDITY(true, actual)
-#define TEST_EXPECTED_FAILURE(actual) TEST_EXPECTED_VALIDITY(false, actual)
-
-#define TEST_EXPECTED_VALUE(expected, actual) \
- EXPECT_EQ(static_cast<Dst>(expected), CheckedNumeric<Dst>(actual).ValueUnsafe()) \
- << "Result test: Value " << +((actual).ValueUnsafe()) << " as " << dst << " on line " \
- << line;
-
-// Signed integer arithmetic.
-template <typename Dst>
-static void TestSpecializedArithmetic(
- const char *dst,
- int line,
- typename std::enable_if<numeric_limits<Dst>::is_integer && numeric_limits<Dst>::is_signed,
- int>::type = 0)
-{
- typedef numeric_limits<Dst> DstLimits;
- TEST_EXPECTED_FAILURE(-CheckedNumeric<Dst>(DstLimits::min()));
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()).Abs());
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(-1).Abs());
-
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::max()) + -1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) + -1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(-DstLimits::max()) + -DstLimits::max());
-
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) - 1);
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()) - -1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::max()) - -DstLimits::max());
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(-DstLimits::max()) - DstLimits::max());
-
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) * 2);
-
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) / -1);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(-1) / 2);
-
- // Modulus is legal only for integers.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>() % 1);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % 1);
- TEST_EXPECTED_VALUE(-1, CheckedNumeric<Dst>(-1) % 2);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(-1) % -2);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(DstLimits::min()) % 2);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(DstLimits::max()) % 2);
- // Test all the different modulus combinations.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, 1 % CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % 1);
- CheckedNumeric<Dst> checked_dst = 1;
- TEST_EXPECTED_VALUE(0, checked_dst %= 1);
-}
-
-// Unsigned integer arithmetic.
-template <typename Dst>
-static void TestSpecializedArithmetic(
- const char *dst,
- int line,
- typename std::enable_if<numeric_limits<Dst>::is_integer && !numeric_limits<Dst>::is_signed,
- int>::type = 0)
-{
- typedef numeric_limits<Dst> DstLimits;
- TEST_EXPECTED_SUCCESS(-CheckedNumeric<Dst>(DstLimits::min()));
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()).Abs());
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) + -1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::min()) - 1);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(DstLimits::min()) * 2);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) / 2);
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()).UnsignedAbs());
- TEST_EXPECTED_SUCCESS(CheckedNumeric<typename SignedIntegerForSize<Dst>::type>(
- std::numeric_limits<typename SignedIntegerForSize<Dst>::type>::min())
- .UnsignedAbs());
-
- // Modulus is legal only for integers.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>() % 1);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % 1);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) % 2);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(DstLimits::min()) % 2);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(DstLimits::max()) % 2);
- // Test all the different modulus combinations.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, 1 % CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) % 1);
- CheckedNumeric<Dst> checked_dst = 1;
- TEST_EXPECTED_VALUE(0, checked_dst %= 1);
-}
-
-// Floating point arithmetic.
-template <typename Dst>
-void TestSpecializedArithmetic(
- const char *dst,
- int line,
- typename std::enable_if<numeric_limits<Dst>::is_iec559, int>::type = 0)
-{
- typedef numeric_limits<Dst> DstLimits;
- TEST_EXPECTED_SUCCESS(-CheckedNumeric<Dst>(DstLimits::min()));
-
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()).Abs());
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(-1).Abs());
-
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()) + -1);
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::max()) + 1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(-DstLimits::max()) + -DstLimits::max());
-
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::max()) - -DstLimits::max());
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(-DstLimits::max()) - DstLimits::max());
-
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()) * 2);
-
- TEST_EXPECTED_VALUE(-0.5, CheckedNumeric<Dst>(-1.0) / 2);
- EXPECT_EQ(static_cast<Dst>(1.0), CheckedNumeric<Dst>(1.0).ValueFloating());
-}
-
-// Generic arithmetic tests.
-template <typename Dst>
-static void TestArithmetic(const char *dst, int line)
-{
- typedef numeric_limits<Dst> DstLimits;
-
- EXPECT_EQ(true, CheckedNumeric<Dst>().IsValid());
- EXPECT_EQ(
- false,
- CheckedNumeric<Dst>(CheckedNumeric<Dst>(DstLimits::max()) * DstLimits::max()).IsValid());
- EXPECT_EQ(static_cast<Dst>(0), CheckedNumeric<Dst>().ValueOrDie());
- EXPECT_EQ(static_cast<Dst>(0), CheckedNumeric<Dst>().ValueOrDefault(1));
- EXPECT_EQ(static_cast<Dst>(1),
- CheckedNumeric<Dst>(CheckedNumeric<Dst>(DstLimits::max()) * DstLimits::max())
- .ValueOrDefault(1));
-
- // Test the operator combinations.
- TEST_EXPECTED_VALUE(2, CheckedNumeric<Dst>(1) + CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) - CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) * CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) / CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(2, 1 + CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(0, 1 - CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(1, 1 * CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(1, 1 / CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(2, CheckedNumeric<Dst>(1) + 1);
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>(1) - 1);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) * 1);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) / 1);
- CheckedNumeric<Dst> checked_dst = 1;
- TEST_EXPECTED_VALUE(2, checked_dst += 1);
- checked_dst = 1;
- TEST_EXPECTED_VALUE(0, checked_dst -= 1);
- checked_dst = 1;
- TEST_EXPECTED_VALUE(1, checked_dst *= 1);
- checked_dst = 1;
- TEST_EXPECTED_VALUE(1, checked_dst /= 1);
-
- // Generic negation.
- TEST_EXPECTED_VALUE(0, -CheckedNumeric<Dst>());
- TEST_EXPECTED_VALUE(-1, -CheckedNumeric<Dst>(1));
- TEST_EXPECTED_VALUE(1, -CheckedNumeric<Dst>(-1));
- TEST_EXPECTED_VALUE(static_cast<Dst>(DstLimits::max() * -1),
- -CheckedNumeric<Dst>(DstLimits::max()));
-
- // Generic absolute value.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>().Abs());
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1).Abs());
- TEST_EXPECTED_VALUE(DstLimits::max(), CheckedNumeric<Dst>(DstLimits::max()).Abs());
-
- // Generic addition.
- TEST_EXPECTED_VALUE(1, (CheckedNumeric<Dst>() + 1));
- TEST_EXPECTED_VALUE(2, (CheckedNumeric<Dst>(1) + 1));
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>(-1) + 1));
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::min()) + 1);
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::max()) + DstLimits::max());
-
- // Generic subtraction.
- TEST_EXPECTED_VALUE(-1, (CheckedNumeric<Dst>() - 1));
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>(1) - 1));
- TEST_EXPECTED_VALUE(-2, (CheckedNumeric<Dst>(-1) - 1));
- TEST_EXPECTED_SUCCESS(CheckedNumeric<Dst>(DstLimits::max()) - 1);
-
- // Generic multiplication.
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>() * 1));
- TEST_EXPECTED_VALUE(1, (CheckedNumeric<Dst>(1) * 1));
- TEST_EXPECTED_VALUE(-2, (CheckedNumeric<Dst>(-1) * 2));
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>(0) * 0));
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>(-1) * 0));
- TEST_EXPECTED_VALUE(0, (CheckedNumeric<Dst>(0) * -1));
- TEST_EXPECTED_FAILURE(CheckedNumeric<Dst>(DstLimits::max()) * DstLimits::max());
-
- // Generic division.
- TEST_EXPECTED_VALUE(0, CheckedNumeric<Dst>() / 1);
- TEST_EXPECTED_VALUE(1, CheckedNumeric<Dst>(1) / 1);
- TEST_EXPECTED_VALUE(DstLimits::min() / 2, CheckedNumeric<Dst>(DstLimits::min()) / 2);
- TEST_EXPECTED_VALUE(DstLimits::max() / 2, CheckedNumeric<Dst>(DstLimits::max()) / 2);
-
- TestSpecializedArithmetic<Dst>(dst, line);
-}
-
-// Helper macro to wrap displaying the conversion types and line numbers.
-#define TEST_ARITHMETIC(Dst) TestArithmetic<Dst>(#Dst, __LINE__)
-
-TEST(SafeNumerics, SignedIntegerMath)
-{
- TEST_ARITHMETIC(int8_t);
- TEST_ARITHMETIC(int);
- TEST_ARITHMETIC(intptr_t);
- TEST_ARITHMETIC(intmax_t);
-}
-
-TEST(SafeNumerics, UnsignedIntegerMath)
-{
- TEST_ARITHMETIC(uint8_t);
- TEST_ARITHMETIC(unsigned int);
- TEST_ARITHMETIC(uintptr_t);
- TEST_ARITHMETIC(uintmax_t);
-}
-
-TEST(SafeNumerics, FloatingPointMath)
-{
- TEST_ARITHMETIC(float);
- TEST_ARITHMETIC(double);
-}
-
-// Enumerates the five different conversions types we need to test.
-enum NumericConversionType
-{
- SIGN_PRESERVING_VALUE_PRESERVING,
- SIGN_PRESERVING_NARROW,
- SIGN_TO_UNSIGN_WIDEN_OR_EQUAL,
- SIGN_TO_UNSIGN_NARROW,
- UNSIGN_TO_SIGN_NARROW_OR_EQUAL,
-};
-
-// Template covering the different conversion tests.
-template <typename Dst, typename Src, NumericConversionType conversion>
-struct TestNumericConversion
-{
-};
-
-// EXPECT_EQ wrappers providing specific detail on test failures.
-#define TEST_EXPECTED_RANGE(expected, actual) \
- EXPECT_EQ(expected, base::internal::DstRangeRelationToSrcRange<Dst>(actual)) \
- << "Conversion test: " << src << " value " << actual << " to " << dst << " on line " \
- << line;
-
-template <typename Dst, typename Src>
-struct TestNumericConversion<Dst, Src, SIGN_PRESERVING_VALUE_PRESERVING>
-{
- static void Test(const char *dst, const char *src, int line)
- {
- typedef numeric_limits<Src> SrcLimits;
- typedef numeric_limits<Dst> DstLimits;
- // Integral to floating.
- static_assert(
- (DstLimits::is_iec559 && SrcLimits::is_integer) ||
- // Not floating to integral and...
- (!(DstLimits::is_integer && SrcLimits::is_iec559) &&
- // Same sign, same numeric, source is narrower or same.
- ((SrcLimits::is_signed == DstLimits::is_signed && sizeof(Dst) >= sizeof(Src)) ||
- // Or signed destination and source is smaller
- (DstLimits::is_signed && sizeof(Dst) > sizeof(Src)))),
- "Comparison must be sign preserving and value preserving");
-
- const CheckedNumeric<Dst> checked_dst = SrcLimits::max();
- TEST_EXPECTED_SUCCESS(checked_dst);
- if (MaxExponent<Dst>::value > MaxExponent<Src>::value)
- {
- if (MaxExponent<Dst>::value >= MaxExponent<Src>::value * 2 - 1)
- {
- // At least twice larger type.
- TEST_EXPECTED_SUCCESS(SrcLimits::max() * checked_dst);
- }
- else
- { // Larger, but not at least twice as large.
- TEST_EXPECTED_FAILURE(SrcLimits::max() * checked_dst);
- TEST_EXPECTED_SUCCESS(checked_dst + 1);
- }
- }
- else
- { // Same width type.
- TEST_EXPECTED_FAILURE(checked_dst + 1);
- }
-
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::max());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(1));
- if (SrcLimits::is_iec559)
- {
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::max() * static_cast<Src>(-1));
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::infinity());
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::infinity() * -1);
- TEST_EXPECTED_RANGE(RANGE_INVALID, SrcLimits::quiet_NaN());
- }
- else if (numeric_limits<Src>::is_signed)
- {
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(-1));
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::min());
- }
- }
-};
-
-template <typename Dst, typename Src>
-struct TestNumericConversion<Dst, Src, SIGN_PRESERVING_NARROW>
-{
- static void Test(const char *dst, const char *src, int line)
- {
- typedef numeric_limits<Src> SrcLimits;
- typedef numeric_limits<Dst> DstLimits;
- static_assert(SrcLimits::is_signed == DstLimits::is_signed,
- "Destination and source sign must be the same");
- static_assert(sizeof(Dst) < sizeof(Src) || (DstLimits::is_integer && SrcLimits::is_iec559),
- "Destination must be narrower than source");
-
- const CheckedNumeric<Dst> checked_dst;
- TEST_EXPECTED_FAILURE(checked_dst + SrcLimits::max());
- TEST_EXPECTED_VALUE(1, checked_dst + static_cast<Src>(1));
- TEST_EXPECTED_FAILURE(checked_dst - SrcLimits::max());
-
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::max());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(1));
- if (SrcLimits::is_iec559)
- {
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::max() * -1);
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(-1));
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::infinity());
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::infinity() * -1);
- TEST_EXPECTED_RANGE(RANGE_INVALID, SrcLimits::quiet_NaN());
- if (DstLimits::is_integer)
- {
- if (SrcLimits::digits < DstLimits::digits)
- {
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, static_cast<Src>(DstLimits::max()));
- }
- else
- {
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(DstLimits::max()));
- }
- TEST_EXPECTED_RANGE(RANGE_VALID,
- static_cast<Src>(GetMaxConvertibleToFloat<Src, Dst>()));
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(DstLimits::min()));
- }
- }
- else if (SrcLimits::is_signed)
- {
- TEST_EXPECTED_VALUE(-1, checked_dst - static_cast<Src>(1));
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::min());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(-1));
- }
- else
- {
- TEST_EXPECTED_FAILURE(checked_dst - static_cast<Src>(1));
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::min());
- }
- }
-};
-
-template <typename Dst, typename Src>
-struct TestNumericConversion<Dst, Src, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL>
-{
- static void Test(const char *dst, const char *src, int line)
- {
- typedef numeric_limits<Src> SrcLimits;
- typedef numeric_limits<Dst> DstLimits;
- static_assert(sizeof(Dst) >= sizeof(Src),
- "Destination must be equal or wider than source.");
- static_assert(SrcLimits::is_signed, "Source must be signed");
- static_assert(!DstLimits::is_signed, "Destination must be unsigned");
-
- const CheckedNumeric<Dst> checked_dst;
- TEST_EXPECTED_VALUE(SrcLimits::max(), checked_dst + SrcLimits::max());
- TEST_EXPECTED_FAILURE(checked_dst + static_cast<Src>(-1));
- TEST_EXPECTED_FAILURE(checked_dst + -SrcLimits::max());
-
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::min());
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::max());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(1));
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, static_cast<Src>(-1));
- }
-};
-
-template <typename Dst, typename Src>
-struct TestNumericConversion<Dst, Src, SIGN_TO_UNSIGN_NARROW>
-{
- static void Test(const char *dst, const char *src, int line)
- {
- typedef numeric_limits<Src> SrcLimits;
- typedef numeric_limits<Dst> DstLimits;
- static_assert(
- (DstLimits::is_integer && SrcLimits::is_iec559) || (sizeof(Dst) < sizeof(Src)),
- "Destination must be narrower than source.");
- static_assert(SrcLimits::is_signed, "Source must be signed.");
- static_assert(!DstLimits::is_signed, "Destination must be unsigned.");
-
- const CheckedNumeric<Dst> checked_dst;
- TEST_EXPECTED_VALUE(1, checked_dst + static_cast<Src>(1));
- TEST_EXPECTED_FAILURE(checked_dst + SrcLimits::max());
- TEST_EXPECTED_FAILURE(checked_dst + static_cast<Src>(-1));
- TEST_EXPECTED_FAILURE(checked_dst + -SrcLimits::max());
-
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::max());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(1));
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, static_cast<Src>(-1));
- if (SrcLimits::is_iec559)
- {
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::max() * -1);
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::infinity());
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::infinity() * -1);
- TEST_EXPECTED_RANGE(RANGE_INVALID, SrcLimits::quiet_NaN());
- if (DstLimits::is_integer)
- {
- if (SrcLimits::digits < DstLimits::digits)
- {
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, static_cast<Src>(DstLimits::max()));
- }
- else
- {
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(DstLimits::max()));
- }
- TEST_EXPECTED_RANGE(RANGE_VALID,
- static_cast<Src>(GetMaxConvertibleToFloat<Src, Dst>()));
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(DstLimits::min()));
- }
- }
- else
- {
- TEST_EXPECTED_RANGE(RANGE_UNDERFLOW, SrcLimits::min());
- }
- }
-};
-
-template <typename Dst, typename Src>
-struct TestNumericConversion<Dst, Src, UNSIGN_TO_SIGN_NARROW_OR_EQUAL>
-{
- static void Test(const char *dst, const char *src, int line)
- {
- typedef numeric_limits<Src> SrcLimits;
- typedef numeric_limits<Dst> DstLimits;
- static_assert(sizeof(Dst) <= sizeof(Src),
- "Destination must be narrower or equal to source.");
- static_assert(!SrcLimits::is_signed, "Source must be unsigned.");
- static_assert(DstLimits::is_signed, "Destination must be signed.");
-
- const CheckedNumeric<Dst> checked_dst;
- TEST_EXPECTED_VALUE(1, checked_dst + static_cast<Src>(1));
- TEST_EXPECTED_FAILURE(checked_dst + SrcLimits::max());
- TEST_EXPECTED_VALUE(SrcLimits::min(), checked_dst + SrcLimits::min());
-
- TEST_EXPECTED_RANGE(RANGE_VALID, SrcLimits::min());
- TEST_EXPECTED_RANGE(RANGE_OVERFLOW, SrcLimits::max());
- TEST_EXPECTED_RANGE(RANGE_VALID, static_cast<Src>(1));
- }
-};
-
-// Helper macro to wrap displaying the conversion types and line numbers
-#define TEST_NUMERIC_CONVERSION(d, s, t) TestNumericConversion<d, s, t>::Test(#d, #s, __LINE__)
-
-TEST(SafeNumerics, IntMinOperations)
-{
- TEST_NUMERIC_CONVERSION(int8_t, int8_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(uint8_t, uint8_t, SIGN_PRESERVING_VALUE_PRESERVING);
-
- TEST_NUMERIC_CONVERSION(int8_t, int, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(uint8_t, unsigned int, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(int8_t, float, SIGN_PRESERVING_NARROW);
-
- TEST_NUMERIC_CONVERSION(uint8_t, int8_t, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
-
- TEST_NUMERIC_CONVERSION(uint8_t, int, SIGN_TO_UNSIGN_NARROW);
- TEST_NUMERIC_CONVERSION(uint8_t, intmax_t, SIGN_TO_UNSIGN_NARROW);
- TEST_NUMERIC_CONVERSION(uint8_t, float, SIGN_TO_UNSIGN_NARROW);
-
- TEST_NUMERIC_CONVERSION(int8_t, unsigned int, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
- TEST_NUMERIC_CONVERSION(int8_t, uintmax_t, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
-}
-
-TEST(SafeNumerics, IntOperations)
-{
- TEST_NUMERIC_CONVERSION(int, int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(unsigned int, unsigned int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(int, int8_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(unsigned int, uint8_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(int, uint8_t, SIGN_PRESERVING_VALUE_PRESERVING);
-
- TEST_NUMERIC_CONVERSION(int, intmax_t, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(unsigned int, uintmax_t, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(int, float, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(int, double, SIGN_PRESERVING_NARROW);
-
- TEST_NUMERIC_CONVERSION(unsigned int, int, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
- TEST_NUMERIC_CONVERSION(unsigned int, int8_t, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
-
- TEST_NUMERIC_CONVERSION(unsigned int, intmax_t, SIGN_TO_UNSIGN_NARROW);
- TEST_NUMERIC_CONVERSION(unsigned int, float, SIGN_TO_UNSIGN_NARROW);
- TEST_NUMERIC_CONVERSION(unsigned int, double, SIGN_TO_UNSIGN_NARROW);
-
- TEST_NUMERIC_CONVERSION(int, unsigned int, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
- TEST_NUMERIC_CONVERSION(int, uintmax_t, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
-}
-
-TEST(SafeNumerics, IntMaxOperations)
-{
- TEST_NUMERIC_CONVERSION(intmax_t, intmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(uintmax_t, uintmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(intmax_t, int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(uintmax_t, unsigned int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(intmax_t, unsigned int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(intmax_t, uint8_t, SIGN_PRESERVING_VALUE_PRESERVING);
-
- TEST_NUMERIC_CONVERSION(intmax_t, float, SIGN_PRESERVING_NARROW);
- TEST_NUMERIC_CONVERSION(intmax_t, double, SIGN_PRESERVING_NARROW);
-
- TEST_NUMERIC_CONVERSION(uintmax_t, int, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
- TEST_NUMERIC_CONVERSION(uintmax_t, int8_t, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
-
- TEST_NUMERIC_CONVERSION(uintmax_t, float, SIGN_TO_UNSIGN_NARROW);
- TEST_NUMERIC_CONVERSION(uintmax_t, double, SIGN_TO_UNSIGN_NARROW);
-
- TEST_NUMERIC_CONVERSION(intmax_t, uintmax_t, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
-}
-
-TEST(SafeNumerics, FloatOperations)
-{
- TEST_NUMERIC_CONVERSION(float, intmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(float, uintmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(float, int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(float, unsigned int, SIGN_PRESERVING_VALUE_PRESERVING);
-
- TEST_NUMERIC_CONVERSION(float, double, SIGN_PRESERVING_NARROW);
-}
-
-TEST(SafeNumerics, DoubleOperations)
-{
- TEST_NUMERIC_CONVERSION(double, intmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(double, uintmax_t, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(double, int, SIGN_PRESERVING_VALUE_PRESERVING);
- TEST_NUMERIC_CONVERSION(double, unsigned int, SIGN_PRESERVING_VALUE_PRESERVING);
-}
-
-TEST(SafeNumerics, SizeTOperations)
-{
- TEST_NUMERIC_CONVERSION(size_t, int, SIGN_TO_UNSIGN_WIDEN_OR_EQUAL);
- TEST_NUMERIC_CONVERSION(int, size_t, UNSIGN_TO_SIGN_NARROW_OR_EQUAL);
-}
-
-TEST(SafeNumerics, CastTests)
-{
-// MSVC catches and warns that we're forcing saturation in these tests.
-// Since that's intentional, we need to shut this warning off.
-#if defined(COMPILER_MSVC)
-#pragma warning(disable : 4756)
-#endif
-
- int small_positive = 1;
- int small_negative = -1;
- double double_small = 1.0;
- double double_large = numeric_limits<double>::max();
- double double_infinity = numeric_limits<float>::infinity();
- double double_large_int = numeric_limits<int>::max();
- double double_small_int = numeric_limits<int>::min();
-
- // Just test that the casts compile, since the other tests cover logic.
- EXPECT_EQ(0, checked_cast<int>(static_cast<size_t>(0)));
- EXPECT_EQ(0, strict_cast<int>(static_cast<char>(0)));
- EXPECT_EQ(0, strict_cast<int>(static_cast<unsigned char>(0)));
- EXPECT_EQ(0U, strict_cast<unsigned>(static_cast<unsigned char>(0)));
- EXPECT_EQ(1ULL, static_cast<uint64_t>(StrictNumeric<size_t>(1U)));
- EXPECT_EQ(1ULL, static_cast<uint64_t>(SizeT(1U)));
- EXPECT_EQ(1U, static_cast<size_t>(StrictNumeric<unsigned>(1U)));
-
- EXPECT_TRUE(CheckedNumeric<uint64_t>(StrictNumeric<unsigned>(1U)).IsValid());
- EXPECT_TRUE(CheckedNumeric<int>(StrictNumeric<unsigned>(1U)).IsValid());
- EXPECT_FALSE(CheckedNumeric<unsigned>(StrictNumeric<int>(-1)).IsValid());
-
- EXPECT_TRUE(IsValueNegative(-1));
- EXPECT_TRUE(IsValueNegative(numeric_limits<int>::min()));
- EXPECT_FALSE(IsValueNegative(numeric_limits<unsigned>::min()));
- EXPECT_TRUE(IsValueNegative(-numeric_limits<double>::max()));
- EXPECT_FALSE(IsValueNegative(0));
- EXPECT_FALSE(IsValueNegative(1));
- EXPECT_FALSE(IsValueNegative(0u));
- EXPECT_FALSE(IsValueNegative(1u));
- EXPECT_FALSE(IsValueNegative(numeric_limits<int>::max()));
- EXPECT_FALSE(IsValueNegative(numeric_limits<unsigned>::max()));
- EXPECT_FALSE(IsValueNegative(numeric_limits<double>::max()));
-
- // These casts and coercions will fail to compile:
- // EXPECT_EQ(0, strict_cast<int>(static_cast<size_t>(0)));
- // EXPECT_EQ(0, strict_cast<size_t>(static_cast<int>(0)));
- // EXPECT_EQ(1ULL, StrictNumeric<size_t>(1));
- // EXPECT_EQ(1, StrictNumeric<size_t>(1U));
-
- // Test various saturation corner cases.
- EXPECT_EQ(saturated_cast<int>(small_negative), static_cast<int>(small_negative));
- EXPECT_EQ(saturated_cast<int>(small_positive), static_cast<int>(small_positive));
- EXPECT_EQ(saturated_cast<unsigned>(small_negative), static_cast<unsigned>(0));
- EXPECT_EQ(saturated_cast<int>(double_small), static_cast<int>(double_small));
- EXPECT_EQ(saturated_cast<int>(double_large), numeric_limits<int>::max());
- EXPECT_EQ(saturated_cast<float>(double_large), double_infinity);
- EXPECT_EQ(saturated_cast<float>(-double_large), -double_infinity);
- EXPECT_EQ(numeric_limits<int>::min(), saturated_cast<int>(double_small_int));
- EXPECT_EQ(numeric_limits<int>::max(), saturated_cast<int>(double_large_int));
-
- float not_a_number =
- std::numeric_limits<float>::infinity() - std::numeric_limits<float>::infinity();
- EXPECT_TRUE(std::isnan(not_a_number));
- EXPECT_EQ(0, saturated_cast<int>(not_a_number));
-}
-
-#if GTEST_HAS_DEATH_TEST
-
-TEST(SafeNumerics, SaturatedCastChecks)
-{
- float not_a_number =
- std::numeric_limits<float>::infinity() - std::numeric_limits<float>::infinity();
- EXPECT_TRUE(std::isnan(not_a_number));
- EXPECT_DEATH((saturated_cast<int, base::SaturatedCastNaNBehaviorCheck>(not_a_number)), "");
-}
-
-#endif // GTEST_HAS_DEATH_TEST
-
-TEST(SafeNumerics, IsValueInRangeForNumericType)
-{
- EXPECT_TRUE(IsValueInRangeForNumericType<uint32_t>(0));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint32_t>(1));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint32_t>(2));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint32_t>(-1));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint32_t>(0xffffffffu));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint32_t>(UINT64_C(0xffffffff)));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint32_t>(UINT64_C(0x100000000)));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint32_t>(UINT64_C(0x100000001)));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint32_t>(std::numeric_limits<int32_t>::min()));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint32_t>(std::numeric_limits<int64_t>::min()));
-
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(0));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(1));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(2));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(-1));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(0x7fffffff));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(0x7fffffffu));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(0x80000000u));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(0xffffffffu));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(INT64_C(0x80000000)));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(INT64_C(0xffffffff)));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(INT64_C(0x100000000)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(std::numeric_limits<int32_t>::min()));
- EXPECT_TRUE(IsValueInRangeForNumericType<int32_t>(
- static_cast<int64_t>(std::numeric_limits<int32_t>::min())));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(
- static_cast<int64_t>(std::numeric_limits<int32_t>::min()) - 1));
- EXPECT_FALSE(IsValueInRangeForNumericType<int32_t>(std::numeric_limits<int64_t>::min()));
-
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(0));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(1));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(2));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint64_t>(-1));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(0xffffffffu));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(UINT64_C(0xffffffff)));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(UINT64_C(0x100000000)));
- EXPECT_TRUE(IsValueInRangeForNumericType<uint64_t>(UINT64_C(0x100000001)));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint64_t>(std::numeric_limits<int32_t>::min()));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint64_t>(INT64_C(-1)));
- EXPECT_FALSE(IsValueInRangeForNumericType<uint64_t>(std::numeric_limits<int64_t>::min()));
-
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(0));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(1));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(2));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(-1));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(0x7fffffff));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(0x7fffffffu));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(0x80000000u));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(0xffffffffu));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(INT64_C(0x80000000)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(INT64_C(0xffffffff)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(INT64_C(0x100000000)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(INT64_C(0x7fffffffffffffff)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(UINT64_C(0x7fffffffffffffff)));
- EXPECT_FALSE(IsValueInRangeForNumericType<int64_t>(UINT64_C(0x8000000000000000)));
- EXPECT_FALSE(IsValueInRangeForNumericType<int64_t>(UINT64_C(0xffffffffffffffff)));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(std::numeric_limits<int32_t>::min()));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(
- static_cast<int64_t>(std::numeric_limits<int32_t>::min())));
- EXPECT_TRUE(IsValueInRangeForNumericType<int64_t>(std::numeric_limits<int64_t>::min()));
-}
-
-TEST(SafeNumerics, CompoundNumericOperations)
-{
- CheckedNumeric<int> a = 1;
- CheckedNumeric<int> b = 2;
- CheckedNumeric<int> c = 3;
- CheckedNumeric<int> d = 4;
- a += b;
- EXPECT_EQ(3, a.ValueOrDie());
- a -= c;
- EXPECT_EQ(0, a.ValueOrDie());
- d /= b;
- EXPECT_EQ(2, d.ValueOrDie());
- d *= d;
- EXPECT_EQ(4, d.ValueOrDie());
-
- CheckedNumeric<int> too_large = std::numeric_limits<int>::max();
- EXPECT_TRUE(too_large.IsValid());
- too_large += d;
- EXPECT_FALSE(too_large.IsValid());
- too_large -= d;
- EXPECT_FALSE(too_large.IsValid());
- too_large /= d;
- EXPECT_FALSE(too_large.IsValid());
-}