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Add user-defined string literals to create buffers

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This commit is contained in:
Gudmundur Adalsteinsson 2019-09-11 20:38:47 +00:00
parent ab588fb7c9
commit 7d9e5cb421
2 changed files with 52 additions and 0 deletions
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32
tests/buffer.cpp
View File

@ -250,6 +250,38 @@ TEST_CASE("const_buffer creation with str_buffer", "[buffer]")
CHECK(std::string(static_cast<const char*>(b2.data()), b2.size()) == "hello");
}
TEST_CASE("const_buffer creation with zbuf string literal char", "[buffer]")
{
using namespace zmq::literals;
constexpr zmq::const_buffer b = "hello"_zbuf;
CHECK(b.size() == 5);
CHECK(std::memcmp(b.data(), "hello", b.size()) == 0);
}
TEST_CASE("const_buffer creation with zbuf string literal wchar_t", "[buffer]")
{
using namespace zmq::literals;
constexpr zmq::const_buffer b = L"hello"_zbuf;
CHECK(b.size() == 5 * sizeof(wchar_t));
CHECK(std::memcmp(b.data(), L"hello", b.size()) == 0);
}
TEST_CASE("const_buffer creation with zbuf string literal char16_t", "[buffer]")
{
using namespace zmq::literals;
constexpr zmq::const_buffer b = u"hello"_zbuf;
CHECK(b.size() == 5 * sizeof(char16_t));
CHECK(std::memcmp(b.data(), u"hello", b.size()) == 0);
}
TEST_CASE("const_buffer creation with zbuf string literal char32_t", "[buffer]")
{
using namespace zmq::literals;
constexpr zmq::const_buffer b = U"hello"_zbuf;
CHECK(b.size() == 5 * sizeof(char32_t));
CHECK(std::memcmp(b.data(), U"hello", b.size()) == 0);
}
TEST_CASE("buffer of structs", "[buffer]")
{
struct some_pod

20
zmq.hpp
View File

@ -1124,6 +1124,26 @@ constexpr const_buffer str_buffer(const Char (&data)[N]) noexcept
(N - 1) * sizeof(Char));
}
namespace literals
{
constexpr const_buffer operator"" _zbuf(const char* str, size_t len) noexcept
{
return const_buffer(str, len * sizeof(char));
}
constexpr const_buffer operator"" _zbuf(const wchar_t* str, size_t len) noexcept
{
return const_buffer(str, len * sizeof(wchar_t));
}
constexpr const_buffer operator"" _zbuf(const char16_t* str, size_t len) noexcept
{
return const_buffer(str, len * sizeof(char16_t));
}
constexpr const_buffer operator"" _zbuf(const char32_t* str, size_t len) noexcept
{
return const_buffer(str, len * sizeof(char32_t));
}
}
#endif // ZMQ_CPP11
namespace detail