1*e4483100SAaron Ballman // RUN: %clang_cc1 -std=c2x -verify %s 2*e4483100SAaron Ballman 3*e4483100SAaron Ballman _Static_assert(1'2'3 == 12'3, ""); 4*e4483100SAaron Ballman _Static_assert(1'000'000 == 0xf'4240, ""); 5*e4483100SAaron Ballman _Static_assert(0'004'000'000 == 0x10'0000, ""); 6*e4483100SAaron Ballman _Static_assert(0b0101'0100 == 0x54, ""); 7*e4483100SAaron Ballman 8*e4483100SAaron Ballman int a0 = 123'; //'; // expected-error {{expected ';'}} 9*e4483100SAaron Ballman int b0 = 0'xff; // expected-error {{digit separator cannot appear at end of digit sequence}} expected-error {{suffix 'xff' on integer}} 10*e4483100SAaron Ballman int c0 = 0x'ff; // expected-error {{suffix 'x'ff' on integer}} 11*e4483100SAaron Ballman int d0 = 0'1234; // ok, octal 12*e4483100SAaron Ballman int e0 = 0'b1010; // expected-error {{digit 'b' in octal constant}} 13*e4483100SAaron Ballman int f0 = 0b'1010; // expected-error {{invalid digit 'b' in octal}} 14*e4483100SAaron Ballman int h0 = 0x1e+1; // expected-error {{invalid suffix '+1' on integer constant}} 15*e4483100SAaron Ballman int i0 = 0x1'e+1; // ok, 'e+' is not recognized after a digit separator 16*e4483100SAaron Ballman 17*e4483100SAaron Ballman float a1 = 1'e1; // expected-error {{digit separator cannot appear at end of digit sequence}} 18*e4483100SAaron Ballman float b1 = 1'0e1; 19*e4483100SAaron Ballman float c1 = 1.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}} 20*e4483100SAaron Ballman float d1 = 1.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}} 21*e4483100SAaron Ballman float e1 = 1e'1; // expected-error {{digit separator cannot appear at start of digit sequence}} 22*e4483100SAaron Ballman float g1 = 0.'0; // expected-error {{digit separator cannot appear at start of digit sequence}} 23*e4483100SAaron Ballman float h1 = .'0; // '; // expected-error {{expected expression}}, lexed as . followed by character literal 24*e4483100SAaron Ballman float i1 = 0x.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}} 25*e4483100SAaron Ballman float j1 = 0x'0.0p0; // expected-error {{invalid suffix 'x'0.0p0'}} 26*e4483100SAaron Ballman float k1 = 0x0'.0p0; // '; // expected-error {{expected ';'}} 27*e4483100SAaron Ballman float l1 = 0x0.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}} 28*e4483100SAaron Ballman float m1 = 0x0.0'p0; // expected-error {{digit separator cannot appear at end of digit sequence}} 29*e4483100SAaron Ballman float n1 = 0x0.0p'0; // expected-error {{digit separator cannot appear at start of digit sequence}} 30*e4483100SAaron Ballman float p1 = 0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}} 31*e4483100SAaron Ballman float q1 = 0'0e1; 32*e4483100SAaron Ballman float r1 = 0.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}} 33*e4483100SAaron Ballman float s1 = 0.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}} 34*e4483100SAaron Ballman float t1 = 0.0e'1; // expected-error {{digit separator cannot appear at start of digit sequence}} 35*e4483100SAaron Ballman float u1 = 0x.'p1f; // expected-error {{hexadecimal floating constant requires a significand}} 36*e4483100SAaron Ballman float v1 = 0e'f; // expected-error {{exponent has no digits}} 37*e4483100SAaron Ballman float w1 = 0x0p'f; // expected-error {{exponent has no digits}} 38*e4483100SAaron Ballman float x1 = 0'e+1; // expected-error {{digit separator cannot appear at end of digit sequence}} 39*e4483100SAaron Ballman float y1 = 0x0'p+1; // expected-error {{digit separator cannot appear at end of digit sequence}} 40*e4483100SAaron Ballman 41*e4483100SAaron Ballman #line 123'456 42*e4483100SAaron Ballman _Static_assert(__LINE__ == 123456, ""); 43*e4483100SAaron Ballman 44*e4483100SAaron Ballman // UCNs can appear before digit separators but not after. 45*e4483100SAaron Ballman int a2 = 0\u1234'5; // expected-error {{invalid suffix '\u1234'5' on integer constant}} 46*e4483100SAaron Ballman int b2 = 0'\u12345; // '; // expected-error {{expected ';'}} 47*e4483100SAaron Ballman 48*e4483100SAaron Ballman // extended characters can appear before digit separators but not after. 49*e4483100SAaron Ballman int a3 = 0ሴ'5; // expected-error {{invalid suffix 'ሴ'5' on integer constant}} 50*e4483100SAaron Ballman int b3 = 0'ሴ5; // '; // expected-error {{expected ';'}} 51*e4483100SAaron Ballman 52