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Implement 128-bit operator+= for uint128_fallback

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This commit is contained in:
Victor Zverovich
2022-03-27 08:07:45 -07:00
parent b41890c1e5
commit 96930161f9
2 changed files with 18 additions and 6 deletions
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15
test/format-test.cc
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@@ -33,6 +33,7 @@ using fmt::memory_buffer;
using fmt::runtime;
using fmt::string_view;
using fmt::detail::max_value;
using fmt::detail::uint128_fallback;
using testing::Return;
using testing::StrictMock;
@@ -40,7 +41,6 @@ using testing::StrictMock;
enum { buffer_size = 256 };
TEST(uint128_test, ctor) {
using fmt::detail::uint128_fallback;
auto n = uint128_fallback();
EXPECT_EQ(n, 0);
n = uint128_fallback(42);
@@ -49,7 +49,7 @@ TEST(uint128_test, ctor) {
}
TEST(uint128_test, shift) {
auto n = fmt::detail::uint128_fallback(42);
auto n = uint128_fallback(42);
n = n << 64;
EXPECT_EQ(static_cast<uint64_t>(n), 0);
n = n >> 64;
@@ -62,10 +62,19 @@ TEST(uint128_test, shift) {
}
TEST(uint128_test, minus) {
auto n = fmt::detail::uint128_fallback(42);
auto n = uint128_fallback(42);
EXPECT_EQ(n - 2, 40);
}
TEST(uint128_test, plus_assign) {
auto n = uint128_fallback(32);
n += uint128_fallback(10);
EXPECT_EQ(n, 42);
n = uint128_fallback(max_value<uint64_t>());
n += uint128_fallback(1);
EXPECT_EQ(n, uint128_fallback(1) << 64);
}
template <typename Float> void check_isfinite() {
using fmt::detail::isfinite;
EXPECT_TRUE(isfinite(Float(0.0)));