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author | Anton Samokhvalov <pg83@yandex.ru> | 2022-02-10 16:45:15 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:15 +0300 |
commit | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (patch) | |
tree | da2c34829458c7d4e74bdfbdf85dff449e9e7fb8 /library/cpp/pop_count/popcount_ut.cpp | |
parent | 778e51ba091dc39e7b7fcab2b9cf4dbedfb6f2b5 (diff) | |
download | ydb-72cb13b4aff9bc9cf22e49251bc8fd143f82538f.tar.gz |
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 1 of 2.
Diffstat (limited to 'library/cpp/pop_count/popcount_ut.cpp')
-rw-r--r-- | library/cpp/pop_count/popcount_ut.cpp | 126 |
1 files changed, 63 insertions, 63 deletions
diff --git a/library/cpp/pop_count/popcount_ut.cpp b/library/cpp/pop_count/popcount_ut.cpp index 5cd6605411..df2d246de2 100644 --- a/library/cpp/pop_count/popcount_ut.cpp +++ b/library/cpp/pop_count/popcount_ut.cpp @@ -1,70 +1,70 @@ -#include "popcount.h" - +#include "popcount.h" + #include <library/cpp/testing/unittest/registar.h> - -#include <util/random/random.h> - + +#include <util/random/random.h> + Y_UNIT_TEST_SUITE(TestPopCount) { - template <class T> - static inline ui32 SlowPopCount(T t) { - ui32 ret = 0; - - while (t) { - if (t & T(1)) { - ++ret; - } - - t = t >> 1; - } - - return ret; - } - - template <class T> - static inline void Test() { - for (size_t i = 0; i < 10000; ++i) { - const T rndv = RandomNumber<T>(); - - UNIT_ASSERT_VALUES_EQUAL(SlowPopCount(rndv), PopCount(rndv)); - } - } - + template <class T> + static inline ui32 SlowPopCount(T t) { + ui32 ret = 0; + + while (t) { + if (t & T(1)) { + ++ret; + } + + t = t >> 1; + } + + return ret; + } + + template <class T> + static inline void Test() { + for (size_t i = 0; i < 10000; ++i) { + const T rndv = RandomNumber<T>(); + + UNIT_ASSERT_VALUES_EQUAL(SlowPopCount(rndv), PopCount(rndv)); + } + } + Y_UNIT_TEST(Test8) { - Test<ui8>(); - } - + Test<ui8>(); + } + Y_UNIT_TEST(Test16) { - Test<ui16>(); - } - + Test<ui16>(); + } + Y_UNIT_TEST(Test32) { - Test<ui32>(); - } - + Test<ui32>(); + } + Y_UNIT_TEST(Test64) { - Test<ui64>(); - } - + Test<ui64>(); + } + Y_UNIT_TEST(TestPopCount) { - UNIT_ASSERT_VALUES_EQUAL(PopCount(0), 0); - UNIT_ASSERT_VALUES_EQUAL(PopCount(1), 1); - UNIT_ASSERT_VALUES_EQUAL(PopCount(1 << 10), 1); - UNIT_ASSERT_VALUES_EQUAL(PopCount((1 << 10) + 1), 2); - UNIT_ASSERT_VALUES_EQUAL(PopCount(0xFFFF), 16); - UNIT_ASSERT_VALUES_EQUAL(PopCount(0xFFFFFFFF), 32); - UNIT_ASSERT_VALUES_EQUAL(PopCount(0x55555555), 16); - - UNIT_ASSERT_VALUES_EQUAL(0, PopCount(0ULL)); - UNIT_ASSERT_VALUES_EQUAL(1, PopCount(1ULL)); - UNIT_ASSERT_VALUES_EQUAL(16, PopCount(0xAAAAAAAAULL)); - UNIT_ASSERT_VALUES_EQUAL(32, PopCount(0xFFFFFFFFULL)); - UNIT_ASSERT_VALUES_EQUAL(32, PopCount(0xAAAAAAAAAAAAAAAAULL)); - UNIT_ASSERT_VALUES_EQUAL(64, PopCount(0xFFFFFFFFFFFFFFFFULL)); - - ui64 v = 0; - - for (int i = 0; i < 64; v |= 1ULL << i, ++i) { - UNIT_ASSERT_VALUES_EQUAL(i, PopCount(v)); - } - } -} + UNIT_ASSERT_VALUES_EQUAL(PopCount(0), 0); + UNIT_ASSERT_VALUES_EQUAL(PopCount(1), 1); + UNIT_ASSERT_VALUES_EQUAL(PopCount(1 << 10), 1); + UNIT_ASSERT_VALUES_EQUAL(PopCount((1 << 10) + 1), 2); + UNIT_ASSERT_VALUES_EQUAL(PopCount(0xFFFF), 16); + UNIT_ASSERT_VALUES_EQUAL(PopCount(0xFFFFFFFF), 32); + UNIT_ASSERT_VALUES_EQUAL(PopCount(0x55555555), 16); + + UNIT_ASSERT_VALUES_EQUAL(0, PopCount(0ULL)); + UNIT_ASSERT_VALUES_EQUAL(1, PopCount(1ULL)); + UNIT_ASSERT_VALUES_EQUAL(16, PopCount(0xAAAAAAAAULL)); + UNIT_ASSERT_VALUES_EQUAL(32, PopCount(0xFFFFFFFFULL)); + UNIT_ASSERT_VALUES_EQUAL(32, PopCount(0xAAAAAAAAAAAAAAAAULL)); + UNIT_ASSERT_VALUES_EQUAL(64, PopCount(0xFFFFFFFFFFFFFFFFULL)); + + ui64 v = 0; + + for (int i = 0; i < 64; v |= 1ULL << i, ++i) { + UNIT_ASSERT_VALUES_EQUAL(i, PopCount(v)); + } + } +} |