| //===-- Unittests for Limits ----------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/__support/CPP/UInt.h" |
| #include "src/__support/CPP/limits.h" |
| #include "utils/UnitTest/Test.h" |
| |
| namespace __llvm_libc { |
| |
| // This just checks against the C spec, almost all implementations will surpass |
| // this. |
| TEST(LlvmLibcLimitsTest, LimitsFollowSpec) { |
| ASSERT_EQ(cpp::numeric_limits<int>::max(), INT_MAX); |
| ASSERT_EQ(cpp::numeric_limits<int>::min(), INT_MIN); |
| |
| ASSERT_EQ(cpp::numeric_limits<unsigned int>::max(), UINT_MAX); |
| |
| ASSERT_EQ(cpp::numeric_limits<long>::max(), LONG_MAX); |
| ASSERT_EQ(cpp::numeric_limits<long>::min(), LONG_MIN); |
| |
| ASSERT_EQ(cpp::numeric_limits<unsigned long>::max(), ULONG_MAX); |
| |
| ASSERT_EQ(cpp::numeric_limits<long long>::max(), LLONG_MAX); |
| ASSERT_EQ(cpp::numeric_limits<long long>::min(), LLONG_MIN); |
| |
| ASSERT_EQ(cpp::numeric_limits<unsigned long long>::max(), ULLONG_MAX); |
| } |
| |
| TEST(LlvmLibcLimitsTest, UInt128Limits) { |
| auto umax128 = cpp::numeric_limits<__llvm_libc::cpp::UInt<128>>::max(); |
| auto umax64 = |
| __llvm_libc::cpp::UInt<128>(cpp::numeric_limits<uint64_t>::max()); |
| EXPECT_GT(umax128, umax64); |
| ASSERT_EQ(~__llvm_libc::cpp::UInt<128>(0), umax128); |
| #ifdef __SIZEOF_INT128__ |
| ASSERT_EQ(~__uint128_t(0), cpp::numeric_limits<__uint128_t>::max()); |
| #endif |
| } |
| |
| } // namespace __llvm_libc |