130 lines · cpp
1// RUN: %clang_cc1 -std=c++20 -ast-print %s | FileCheck %s2 3using size_t = __SIZE_TYPE__;4static_assert(__has_builtin(__make_integer_seq));5 6template <class T, T... I> class idx_seq {};7template <size_t N> using make_idx_seq = __make_integer_seq<idx_seq, size_t, N>;8 9template <class CharT, size_t N>10struct Str {11 constexpr Str(CharT const (&s)[N]) : Str(s, make_idx_seq<N>()) {}12 CharT value[N];13 14private:15 template <size_t... I>16 constexpr Str(CharT const (&s)[N], idx_seq<size_t, I...>) : value{s[I]...} {}17};18 19template <Str> class ASCII {};20 21void not_string() {22 // CHECK{LITERAL}: ASCII<Str<int, 3>{{9, -1, 42}}>23 new ASCII<(int[]){9, -1, 42}>;24 // CHECK{LITERAL}: ASCII<Str<double, 3>{{3.140000e+00, 0.000000e+00, 4.200000e+01}}>25 new ASCII<(double[]){3.14, 0., 42.}>;26}27 28void narrow() {29 // CHECK{LITERAL}: ASCII<Str<char, 1>{""}>30 new ASCII<"">;31 // CHECK{LITERAL}: ASCII<Str<char, 26>{"the quick brown fox jumps"}>32 new ASCII<"the quick brown fox jumps">;33 // CHECK{LITERAL}: ASCII<Str<char, 29>{"OVER THE LAZY DOG 0123456789"}>34 new ASCII<"OVER THE LAZY DOG 0123456789">;35 // CHECK{LITERAL}: ASCII<Str<char, 33>{"\\`~!@#$%^&*()_+-={}[]|\'\";:,.<>?/"}>36 new ASCII<R"(\`~!@#$%^&*()_+-={}[]|'";:,.<>?/)">;37 // CHECK{LITERAL}: ASCII<Str<char, 8>{{101, 115, 99, 97, 112, 101, 0, 0}}>38 new ASCII<"escape\0">;39 // CHECK{LITERAL}: ASCII<Str<char, 9>{"escape\r\n"}>40 new ASCII<"escape\r\n">;41 // CHECK{LITERAL}: ASCII<Str<char, 11>{"escape\\\t\f\v"}>42 new ASCII<"escape\\\t\f\v">;43 // CHECK{LITERAL}: ASCII<Str<char, 10>{"escape\a\bc"}>44 new ASCII<"escape\a\b\c">;45 // CHECK{LITERAL}: ASCII<Str<char, 5>{{110, 111, 116, 17, 0}}>46 new ASCII<"not\x11">;47 // CHECK{LITERAL}: ASCII<Str<char, 10>{{18, 20, 127, 16, 1, 32, 97, 98, 99, 0}}>48 new ASCII<"\x12\x14\x7f\x10\x01 abc">;49 // CHECK{LITERAL}: ASCII<Str<char, 11>{{18, 20, 127, 16, 1, 32, 97, 98, 99, 100, 0}}>50 new ASCII<"\x12\x14\x7f\x10\x01 abcd">;51 // CHECK{LITERAL}: ASCII<Str<char, 32>{"print more characters as string"}>52 new ASCII<"print more characters as string">;53 // CHECK{LITERAL}: ASCII<Str<char, 44>{"print more characters as string, no uplimit"}>54 new ASCII<"print more characters as string, no uplimit">;55}56 57void wide() {58 // CHECK{LITERAL}: ASCII<Str<wchar_t, 1>{L""}>59 new ASCII<L"">;60 // CHECK{LITERAL}: ASCII<Str<wchar_t, 26>{L"the quick brown fox jumps"}>61 new ASCII<L"the quick brown fox jumps">;62 // CHECK{LITERAL}: ASCII<Str<wchar_t, 29>{L"OVER THE LAZY DOG 0123456789"}>63 new ASCII<L"OVER THE LAZY DOG 0123456789">;64 // CHECK{LITERAL}: ASCII<Str<wchar_t, 33>{L"\\`~!@#$%^&*()_+-={}[]|\'\";:,.<>?/"}>65 new ASCII<LR"(\`~!@#$%^&*()_+-={}[]|'";:,.<>?/)">;66 // CHECK{LITERAL}: ASCII<Str<wchar_t, 8>{{101, 115, 99, 97, 112, 101, 0, 0}}>67 new ASCII<L"escape\0">;68 // CHECK{LITERAL}: ASCII<Str<wchar_t, 9>{L"escape\r\n"}>69 new ASCII<L"escape\r\n">;70 // CHECK{LITERAL}: ASCII<Str<wchar_t, 11>{L"escape\\\t\f\v"}>71 new ASCII<L"escape\\\t\f\v">;72 // CHECK{LITERAL}: ASCII<Str<wchar_t, 10>{L"escape\a\bc"}>73 new ASCII<L"escape\a\b\c">;74 // CHECK{LITERAL}: ASCII<Str<wchar_t, 5>{{110, 111, 116, 17, 0}}>75 new ASCII<L"not\x11">;76 // CHECK{LITERAL}: ASCII<Str<wchar_t, 10>{{18, 20, 255, 22909, 136, 32, 97, 98, 99, 0}}>77 new ASCII<L"\x12\x14\xff\x597d\x88 abc">;78 // CHECK{LITERAL}: ASCII<Str<wchar_t, 11>{{18, 20, 255, 22909, 136, 32, 97, 98, 99, 100, 0}}>79 new ASCII<L"\x12\x14\xff\x597d\x88 abcd">;80 // CHECK{LITERAL}: ASCII<Str<wchar_t, 32>{L"print more characters as string"}>81 new ASCII<L"print more characters as string">;82 // CHECK{LITERAL}: ASCII<Str<wchar_t, 44>{L"print more characters as string, no uplimit"}>83 new ASCII<L"print more characters as string, no uplimit">;84}85 86void utf8() {87 // CHECK{LITERAL}: ASCII<Str<char8_t, 1>{u8""}>88 new ASCII<u8"">;89 // CHECK{LITERAL}: ASCII<Str<char8_t, 33>{u8"\\`~!@#$%^&*()_+-={}[]|\'\";:,.<>?/"}>90 new ASCII<u8R"(\`~!@#$%^&*()_+-={}[]|'";:,.<>?/)">;91 // CHECK{LITERAL}: ASCII<Str<char8_t, 8>{{101, 115, 99, 97, 112, 101, 0, 0}}>92 new ASCII<u8"escape\0">;93 // CHECK{LITERAL}: ASCII<Str<char8_t, 9>{u8"escape\r\n"}>94 new ASCII<u8"escape\r\n">;95 // CHECK{LITERAL}: ASCII<Str<char8_t, 7>{{229, 165, 189, 239, 191, 189, 0}}>96 new ASCII<u8"\u597d\ufffd">;97 // CHECK{LITERAL}: ASCII<Str<char8_t, 44>{u8"print more characters as string, no uplimit"}>98 new ASCII<u8"print more characters as string, no uplimit">;99}100 101void utf16() {102 // CHECK{LITERAL}: ASCII<Str<char16_t, 1>{u""}>103 new ASCII<u"">;104 // CHECK{LITERAL}: ASCII<Str<char16_t, 33>{u"\\`~!@#$%^&*()_+-={}[]|\'\";:,.<>?/"}>105 new ASCII<uR"(\`~!@#$%^&*()_+-={}[]|'";:,.<>?/)">;106 // CHECK{LITERAL}: ASCII<Str<char16_t, 8>{{101, 115, 99, 97, 112, 101, 0, 0}}>107 new ASCII<u"escape\0">;108 // CHECK{LITERAL}: ASCII<Str<char16_t, 9>{u"escape\r\n"}>109 new ASCII<u"escape\r\n">;110 // CHECK{LITERAL}: ASCII<Str<char16_t, 3>{{22909, 65533, 0}}>111 new ASCII<u"\u597d\ufffd">;112 // CHECK{LITERAL}: ASCII<Str<char16_t, 44>{u"print more characters as string, no uplimit"}>113 new ASCII<u"print more characters as string, no uplimit">;114}115 116void utf32() {117 // CHECK{LITERAL}: ASCII<Str<char32_t, 1>{U""}>118 new ASCII<U"">;119 // CHECK{LITERAL}: ASCII<Str<char32_t, 33>{U"\\`~!@#$%^&*()_+-={}[]|\'\";:,.<>?/"}>120 new ASCII<UR"(\`~!@#$%^&*()_+-={}[]|'";:,.<>?/)">;121 // CHECK{LITERAL}: ASCII<Str<char32_t, 8>{{101, 115, 99, 97, 112, 101, 0, 0}}>122 new ASCII<U"escape\0">;123 // CHECK{LITERAL}: ASCII<Str<char32_t, 9>{U"escape\r\n"}>124 new ASCII<U"escape\r\n">;125 // CHECK{LITERAL}: ASCII<Str<char32_t, 3>{{22909, 131358, 0}}>126 new ASCII<U"\u597d\U0002011E">;127 // CHECK{LITERAL}: ASCII<Str<char32_t, 44>{U"print more characters as string, no uplimit"}>128 new ASCII<U"print more characters as string, no uplimit">;129}130