1 // RUN: %clang_cc1 -std=c++1y -verify %s 2 3 int operator""ms(unsigned long long); // expected-warning {{reserved}} 4 float operator""ms(long double); // expected-warning {{reserved}} 5 6 int operator""_foo(unsigned long long); 7 8 namespace 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, octal 18 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 separator 23 24 int z = 0'123'_foo; //'; // expected-error {{cannot appear at end of digit seq}} 25 } 26 27 namespace 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 literal 39 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 } 55 56 #line 123'456 57 static_assert(__LINE__ == 123456, ""); 58 59 // x has value 0 in C++11 and 34 in C++1y. 60 #define M(x, ...) __VA_ARGS__ 61 constexpr int x = { M(1'2,3'4) }; 62 static_assert(x == 34, ""); 63 64 namespace UCNs { 65 // UCNs can appear before digit separators but not after. 66 int a = 0\u1234'5; // expected-error {{invalid suffix '\u1234'5' on integer constant}} 67 int b = 0'\u12345; // '; // expected-error {{expected ';'}} 68 constexpr int c {M(0\u1234'0,0'1)}; 69 constexpr int d {M(00'\u1234,0'1)}; 70 static_assert(c == 1, ""); 71 static_assert(d == 0, ""); 72 } 73 74 namespace UTF8 { 75 // extended characters can appear before digit separators but not after. 76 int a = 0'5; // expected-error {{invalid suffix ''5' on integer constant}} 77 int b = 0'5; // '; // expected-error {{expected ';'}} 78 constexpr int c {M(0'0,0'1)}; 79 constexpr int d {M(00',0'1)}; 80 static_assert(c == 1, ""); 81 static_assert(d == 0, ""); 82 } 83
