C++ (Cpp) basic_string_view::data Beispiele

Beispiel #1

Datei: from_ptr_len.pass.cpp Projekt: 32bitmicro/riscv-libcxx

int main () {

    test ( "QBCDE", 5 );
    test ( "QBCDE", 2 );
    test ( "", 0 );
#if _LIBCPP_STD_VER > 11
    {
    constexpr const char *s = "QBCDE";
    constexpr std::experimental::basic_string_view<char> sv1 ( s, 2 );
    static_assert ( sv1.size() == 2, "" );
    static_assert ( sv1.data() == s, "" );
    }
#endif

    test ( L"QBCDE", 5 );
    test ( L"QBCDE", 2 );
    test ( L"", 0 );
#if _LIBCPP_STD_VER > 11
    {
    constexpr const wchar_t *s = L"QBCDE";
    constexpr std::experimental::basic_string_view<wchar_t> sv1 ( s, 2 );
    static_assert ( sv1.size() == 2, "" );
    static_assert ( sv1.data() == s, "" );
    }
#endif

#if __cplusplus >= 201103L
    test ( u"QBCDE", 5 );
    test ( u"QBCDE", 2 );
    test ( u"", 0 );
#if _LIBCPP_STD_VER > 11
    {
    constexpr const char16_t *s = u"QBCDE";
    constexpr std::experimental::basic_string_view<char16_t> sv1 ( s, 2 );
    static_assert ( sv1.size() == 2, "" );
    static_assert ( sv1.data() == s, "" );
    }
#endif

    test ( U"QBCDE", 5 );
    test ( U"QBCDE", 2 );
    test ( U"", 0 );
#if _LIBCPP_STD_VER > 11
    {
    constexpr const char32_t *s = U"QBCDE";
    constexpr std::experimental::basic_string_view<char32_t> sv1 ( s, 2 );
    static_assert ( sv1.size() == 2, "" );
    static_assert ( sv1.data() == s, "" );
    }
#endif
#endif
}

Beispiel #2

Datei: data.pass.cpp Projekt: AstroVPK/LLVM-4.0.0

int main () {
    test ( "ABCDE", 5 );
    test ( "a", 1 );

    test ( L"ABCDE", 5 );
    test ( L"a", 1 );

#if TEST_STD_VER >= 11
    test ( u"ABCDE", 5 );
    test ( u"a", 1 );

    test ( U"ABCDE", 5 );
    test ( U"a", 1 );
#endif

#if TEST_STD_VER > 11
    {
    constexpr const char *s = "ABC";
    constexpr std::experimental::basic_string_view<char> sv( s, 2 );
    static_assert( sv.length() ==  2,  "" );
    static_assert( sv.data() == s, "" );
    }
#endif
}