85 lines · cpp
1// RUN: %clang_cc1 -std=c++1y -verify %s2 3int operator""ms(unsigned long long); // expected-warning {{reserved}}4float operator""ms(long double); // expected-warning {{reserved}}5 6int operator""_foo(unsigned long long);7 8namespace integral {9 static_assert(1'2'3 == 12'3, "");10 static_assert(1'000'000 == 0xf'4240, "");11 static_assert(0'004'000'000 == 0x10'0000, "");12 static_assert(0b0101'0100 == 0x54, "");13 14 int a = 123'; //'; // expected-error {{expected ';'}}15 int b = 0'xff; // expected-error {{digit separator cannot appear at end of digit sequence}} expected-error {{suffix 'xff' on integer}}16 int c = 0x'ff; // expected-error {{suffix 'x'ff' on integer}}17 int d = 0'1234; // ok, octal18 int e = 0'b1010; // expected-error {{digit 'b' in octal constant}}19 int f = 0b'1010; // expected-error {{invalid digit 'b' in octal}}20 int g = 123'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}21 int h = 0x1e+1; // expected-error {{invalid suffix '+1' on integer constant}}22 int i = 0x1'e+1; // ok, 'e+' is not recognized after a digit separator23 24 int z = 0'123'_foo; //'; // expected-error {{cannot appear at end of digit seq}}25}26 27namespace floating {28 static_assert(0'123.456'7 == 123.4567, "");29 static_assert(1e1'0 == 10'000'000'000, "");30 31 float a = 1'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}32 float b = 1'0e1;33 float c = 1.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}}34 float d = 1.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}35 float e = 1e'1; // expected-error {{digit separator cannot appear at start of digit sequence}}36 float f = 1e1'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}37 float g = 0.'0; // expected-error {{digit separator cannot appear at start of digit sequence}}38 float h = .'0; // '; // expected-error {{expected expression}}, lexed as . followed by character literal39 float i = 0x.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}}40 float j = 0x'0.0p0; // expected-error {{invalid suffix 'x'0.0p0'}}41 float k = 0x0'.0p0; // '; // expected-error {{expected ';'}}42 float l = 0x0.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}}43 float m = 0x0.0'p0; // expected-error {{digit separator cannot appear at end of digit sequence}}44 float n = 0x0.0p'0; // expected-error {{digit separator cannot appear at start of digit sequence}}45 float o = 0x0.0p0'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}46 float p = 0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}47 float q = 0'0e1;48 float r = 0.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}}49 float s = 0.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}50 float t = 0.0e'1; // expected-error {{digit separator cannot appear at start of digit sequence}}51 float u = 0x.'p1f; // expected-error {{hexadecimal floating literal requires a significand}}52 float v = 0e'f; // expected-error {{exponent has no digits}}53 float w = 0x0p'f; // expected-error {{exponent has no digits}}54 float x = 0'e+1; // expected-error {{digit separator cannot appear at end of digit sequence}}55 float y = 0x0'p+1; // expected-error {{digit separator cannot appear at end of digit sequence}}56}57 58#line 123'45659static_assert(__LINE__ == 123456, "");60 61// x has value 0 in C++11 and 34 in C++1y.62#define M(x, ...) __VA_ARGS__63constexpr int x = { M(1'2,3'4) };64static_assert(x == 34, "");65 66namespace UCNs {67 // UCNs can appear before digit separators but not after.68 int a = 0\u1234'5; // expected-error {{invalid suffix '\u1234'5' on integer constant}}69 int b = 0'\u12345; // '; // expected-error {{expected ';'}}70 constexpr int c {M(0\u1234'0,0'1)};71 constexpr int d {M(00'\u1234,0'1)};72 static_assert(c == 1, "");73 static_assert(d == 0, "");74}75 76namespace UTF8 {77 // extended characters can appear before digit separators but not after.78 int a = 0ሴ'5; // expected-error {{invalid suffix 'ሴ'5' on integer constant}}79 int b = 0'ሴ5; // '; // expected-error {{expected ';'}}80 constexpr int c {M(0ሴ'0,0'1)};81 constexpr int d {M(00'ሴ,0'1)};82 static_assert(c == 1, "");83 static_assert(d == 0, "");84}85