1 2 //===-- Unittests for user defined integer literals -----------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "src/__support/integer_literals.h" 11 #include "test/UnitTest/Test.h" 12 13 using LIBC_NAMESPACE::operator""_u8; 14 using LIBC_NAMESPACE::operator""_u16; 15 using LIBC_NAMESPACE::operator""_u32; 16 using LIBC_NAMESPACE::operator""_u64; 17 using LIBC_NAMESPACE::operator""_u128; 18 using LIBC_NAMESPACE::operator""_u256; 19 20 TEST(LlvmLibcIntegerLiteralTest, u8) { 21 EXPECT_EQ(uint8_t(0), 0_u8); 22 EXPECT_EQ(uint8_t(UINT8_MAX), 255_u8); 23 EXPECT_EQ(uint8_t(UINT8_MAX), 0xFF_u8); 24 EXPECT_EQ(uint8_t(UINT8_MAX), 0b11111111_u8); 25 } 26 27 TEST(LlvmLibcIntegerLiteralTest, u16) { 28 EXPECT_EQ(uint16_t(0), 0_u16); 29 EXPECT_EQ(uint16_t(UINT8_MAX), 255_u16); 30 EXPECT_EQ(uint16_t(UINT8_MAX), 0xFF_u16); 31 EXPECT_EQ(uint16_t(UINT8_MAX), 0b11111111_u16); 32 EXPECT_EQ(uint16_t(UINT16_MAX), 65535_u16); 33 EXPECT_EQ(uint16_t(UINT16_MAX), 0xFFFF_u16); 34 EXPECT_EQ(uint16_t(UINT16_MAX), 0b11111111'11111111_u16); 35 } 36 37 TEST(LlvmLibcIntegerLiteralTest, u32) { 38 EXPECT_EQ(uint32_t(0), 0_u32); 39 EXPECT_EQ(uint32_t(UINT8_MAX), 255_u32); 40 EXPECT_EQ(uint32_t(UINT8_MAX), 0xFF_u32); 41 EXPECT_EQ(uint32_t(UINT8_MAX), 0b11111111_u32); 42 EXPECT_EQ(uint32_t(UINT16_MAX), 65535_u32); 43 EXPECT_EQ(uint32_t(UINT16_MAX), 0xFFFF_u32); 44 EXPECT_EQ(uint32_t(UINT16_MAX), 0b11111111'11111111_u32); 45 EXPECT_EQ(uint32_t(UINT32_MAX), 4294967295_u32); 46 EXPECT_EQ(uint32_t(UINT32_MAX), 0xFFFFFFFF_u32); 47 EXPECT_EQ(uint32_t(UINT32_MAX), 0b1111111111111111'1111111111111111_u32); 48 } 49 50 TEST(LlvmLibcIntegerLiteralTest, u64) { 51 EXPECT_EQ(uint64_t(0), 0_u64); 52 EXPECT_EQ(uint64_t(UINT8_MAX), 255_u64); 53 EXPECT_EQ(uint64_t(UINT8_MAX), 0xFF_u64); 54 EXPECT_EQ(uint64_t(UINT8_MAX), 0b11111111_u64); 55 EXPECT_EQ(uint64_t(UINT16_MAX), 65535_u64); 56 EXPECT_EQ(uint64_t(UINT16_MAX), 0xFFFF_u64); 57 EXPECT_EQ(uint64_t(UINT16_MAX), 0b11111111'11111111_u64); 58 EXPECT_EQ(uint64_t(UINT32_MAX), 4294967295_u64); 59 EXPECT_EQ(uint64_t(UINT32_MAX), 0xFFFFFFFF_u64); 60 EXPECT_EQ(uint64_t(UINT32_MAX), 0b1111111111111111'1111111111111111_u64); 61 EXPECT_EQ(uint64_t(UINT64_MAX), 18446744073709551615_u64); 62 EXPECT_EQ(uint64_t(UINT64_MAX), 0xFFFFFFFF'FFFFFFFF_u64); 63 EXPECT_EQ( 64 uint64_t(UINT64_MAX), 65 0b1111111111111111'1111111111111111'1111111111111111'1111111111111111_u64); 66 } 67 68 TEST(LlvmLibcIntegerLiteralTest, u128) { 69 #if defined(__SIZEOF_INT128__) 70 const __uint128_t ZERO = 0; 71 const __uint128_t U8_MAX = UINT8_MAX; 72 const __uint128_t U16_MAX = UINT16_MAX; 73 const __uint128_t U32_MAX = UINT32_MAX; 74 const __uint128_t U64_MAX = UINT64_MAX; 75 const __uint128_t U128_MAX = (U64_MAX << 64) | U64_MAX; 76 #else 77 const UInt128 ZERO = 0; 78 const UInt128 U8_MAX = UINT8_MAX; 79 const UInt128 U16_MAX = UINT16_MAX; 80 const UInt128 U32_MAX = UINT32_MAX; 81 const UInt128 U64_MAX = UINT64_MAX; 82 const UInt128 U128_MAX = (U64_MAX << 64) | U64_MAX; 83 #endif 84 EXPECT_EQ(ZERO, 0_u128); 85 EXPECT_EQ(U8_MAX, 255_u128); 86 EXPECT_EQ(U8_MAX, 0xFF_u128); 87 EXPECT_EQ(U8_MAX, 0b11111111_u128); 88 EXPECT_EQ(U16_MAX, 65535_u128); 89 EXPECT_EQ(U16_MAX, 0xFFFF_u128); 90 EXPECT_EQ(U16_MAX, 0b11111111'11111111_u128); 91 EXPECT_EQ(U32_MAX, 4294967295_u128); 92 EXPECT_EQ(U32_MAX, 0xFFFFFFFF_u128); 93 EXPECT_EQ(U32_MAX, 0b1111111111111111'1111111111111111_u128); 94 EXPECT_EQ(U64_MAX, 18446744073709551615_u128); 95 EXPECT_EQ(U64_MAX, 0xFFFFFFFF'FFFFFFFF_u128); 96 EXPECT_EQ( 97 U64_MAX, 98 0b1111111111111111'1111111111111111'1111111111111111'1111111111111111_u128); 99 EXPECT_EQ(U128_MAX, 340282366920938463463374607431768211455_u128); 100 EXPECT_EQ(U128_MAX, 0xFFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF_u128); 101 EXPECT_EQ( 102 U128_MAX, 103 0b1111111111111111'1111111111111111'1111111111111111'1111111111111111'1111111111111111'1111111111111111'1111111111111111'1111111111111111_u128); 104 } 105 106 TEST(LlvmLibcIntegerLiteralTest, u256) { 107 using UInt256 = LIBC_NAMESPACE::UInt<256>; 108 const UInt256 ZERO = 0; 109 const UInt256 U8_MAX = UINT8_MAX; 110 const UInt256 U16_MAX = UINT16_MAX; 111 const UInt256 U32_MAX = UINT32_MAX; 112 const UInt256 U64_MAX = UINT64_MAX; 113 const UInt256 U128_MAX = (U64_MAX << 64) | U64_MAX; 114 const UInt256 U256_MAX = (U128_MAX << 128) | U128_MAX; 115 EXPECT_EQ(ZERO, 0_u256); 116 EXPECT_EQ(U8_MAX, 255_u256); 117 EXPECT_EQ(U8_MAX, 0xFF_u256); 118 EXPECT_EQ(U8_MAX, 0b11111111_u256); 119 EXPECT_EQ(U16_MAX, 65535_u256); 120 EXPECT_EQ(U16_MAX, 0xFFFF_u256); 121 EXPECT_EQ(U16_MAX, 0b11111111'11111111_u256); 122 EXPECT_EQ(U32_MAX, 4294967295_u256); 123 EXPECT_EQ(U32_MAX, 0xFFFFFFFF_u256); 124 EXPECT_EQ(U32_MAX, 0b1111111111111111'1111111111111111_u256); 125 EXPECT_EQ(U64_MAX, 18446744073709551615_u256); 126 EXPECT_EQ(U64_MAX, 0xFFFFFFFF'FFFFFFFF_u256); 127 EXPECT_EQ( 128 U64_MAX, 129 0b1111111111111111'1111111111111111'1111111111111111'1111111111111111_u256); 130 EXPECT_EQ(U128_MAX, 0xFFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF_u256); 131 EXPECT_EQ( 132 U256_MAX, 133 0xFFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF'FFFFFFFF_u256); 134 } 135