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Initial import of libdpf.

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Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Ryan Henry 2026-09-24 14:08:32 -06:00
commit e4e666f459
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46
thirdparty/uint256_t/tests/testcases/mod.cpp vendored Normal file
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#include <gtest/gtest.h>
#include "uint256_t.h"
TEST(Arithmetic, modulo){
// has remainder
const uint256_t val (0xffffffffffffffffULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL);
const uint256_t val_mod(0xfedcba9876543210ULL);
EXPECT_EQ(val % val_mod, uint256_t(0x63794f9d55c8d29f));
// no remainder
const uint256_t val_0 (0xfedcba9876543210, 0, 0, 0);
EXPECT_EQ(val_0 % val_mod, 0);
// mod 0
EXPECT_THROW(uint256_t(1) % uint256_t(0), std::domain_error);
}
TEST(External, modulo){
bool t = true;
bool f = false;
uint8_t u8 = 0xaaULL;
uint16_t u16 = 0xaaaaULL;
uint32_t u32 = 0xaaaaaaaaULL;
uint64_t u64 = 0xaaaaaaaaaaaaaaaaULL;
uint128_t u128 (0xaaaaaaaaaaaaaaaaULL, 0xaaaaaaaaaaaaaaaaULL);
const uint256_t val(0xd03ULL); // prime
EXPECT_EQ(t % val, true);
EXPECT_EQ(f % val, false);
EXPECT_EQ(u8 % val, uint256_t(0xaaULL));
EXPECT_EQ(u16 % val, uint256_t(0x183ULL));
EXPECT_EQ(u32 % val, uint256_t(0x249ULL));
EXPECT_EQ(u64 % val, uint256_t(0xc7fULL));
EXPECT_EQ(u128 % val, uint256_t(0x9fbULL));
EXPECT_EQ(t %= val, true);
EXPECT_EQ(f %= val, false);
EXPECT_EQ(u8 %= val, (uint8_t) 0xaaULL);
EXPECT_EQ(u16 %= val, (uint16_t) 0x183ULL);
EXPECT_EQ(u32 %= val, (uint32_t) 0x249ULL);
EXPECT_EQ(u64 %= val, (uint64_t) 0xc7fULL);
EXPECT_EQ(u128 %= val, (uint256_t) 0x9fbULL);
}