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Add bit_cast

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This commit is contained in:
Victor Zverovich
2018-05-06 08:07:28 -07:00
parent 0adccaefb6
commit a4c7d99f70
2 changed files with 21 additions and 0 deletions
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10
test/util-test.cc
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@@ -397,6 +397,16 @@ TEST(FixedBufferTest, BufferOverflow) {
EXPECT_THROW_MSG(buffer.resize(11), std::runtime_error, "buffer overflow");
}
TEST(UtilTest, BitCast) {
struct S {
uint32_t u[2];
};
auto s = fmt::internal::bit_cast<S>(uint64_t(42));
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), 42);
s = fmt::internal::bit_cast<S>(uint64_t(~0ull));
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), ~0ull);
}
TEST(UtilTest, Increment) {
char s[10] = "123";
increment(s);