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// RUN: %clang_cc1 -std=c++1y -verify %s
int operator""ms(unsigned long long); // expected-warning {{reserved}}
float operator""ms(long double); // expected-warning {{reserved}}
int operator""_foo(unsigned long long);
namespace integral {
static_assert(1'2'3 == 12'3, "");
static_assert(1'000'000 == 0xf'4240, "");
static_assert(0'004'000'000 == 0x10'0000, "");
static_assert(0b0101'0100 == 0x54, "");
int a = 123'; //'; // expected-error {{expected ';'}}
int b = 0'xff; // expected-error {{digit separator cannot appear at end of digit sequence}} expected-error {{suffix 'xff' on integer}}
int c = 0x'ff; // expected-error {{suffix 'x'ff' on integer}}
int d = 0'1234; // ok, octal
int e = 0'b1010; // expected-error {{digit 'b' in octal constant}}
int f = 0b'1010; // expected-error {{invalid digit 'b' in octal}}
int g = 123'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}
int h = 0x1e+1; // expected-error {{invalid suffix '+1' on integer constant}}
int i = 0x1'e+1; // ok, 'e+' is not recognized after a digit separator
int z = 0'123'_foo; //'; // expected-error {{cannot appear at end of digit seq}}
}
namespace floating {
static_assert(0'123.456'7 == 123.4567, "");
static_assert(1e1'0 == 10'000'000'000, "");
float a = 1'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}
float b = 1'0e1;
float c = 1.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}}
float d = 1.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}
float e = 1e'1; // expected-error {{digit separator cannot appear at start of digit sequence}}
float f = 1e1'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}
float g = 0.'0; // expected-error {{digit separator cannot appear at start of digit sequence}}
float h = .'0; // '; // expected-error {{expected expression}}, lexed as . followed by character literal
float i = 0x.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}}
float j = 0x'0.0p0; // expected-error {{invalid suffix 'x'0.0p0'}}
float k = 0x0'.0p0; // '; // expected-error {{expected ';'}}
float l = 0x0.'0p0; // expected-error {{digit separator cannot appear at start of digit sequence}}
float m = 0x0.0'p0; // expected-error {{digit separator cannot appear at end of digit sequence}}
float n = 0x0.0p'0; // expected-error {{digit separator cannot appear at start of digit sequence}}
float o = 0x0.0p0'ms; // expected-error {{digit separator cannot appear at end of digit sequence}}
float p = 0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}
float q = 0'0e1;
float r = 0.'0e1; // expected-error {{digit separator cannot appear at start of digit sequence}}
float s = 0.0'e1; // expected-error {{digit separator cannot appear at end of digit sequence}}
float t = 0.0e'1; // expected-error {{digit separator cannot appear at start of digit sequence}}
float u = 0x.'p1f; // expected-error {{hexadecimal floating literal requires a significand}}
float v = 0e'f; // expected-error {{exponent has no digits}}
float w = 0x0p'f; // expected-error {{exponent has no digits}}
}
#line 123'456
static_assert(__LINE__ == 123456, "");
// x has value 0 in C++11 and 34 in C++1y.
#define M(x, ...) __VA_ARGS__
constexpr int x = { M(1'2,3'4) };
static_assert(x == 34, "");
namespace UCNs {
// UCNs can appear before digit separators but not after.
int a = 0\u1234'5; // expected-error {{invalid suffix '\u1234'5' on integer constant}}
int b = 0'\u12345; // '; // expected-error {{expected ';'}}
constexpr int c {M(0\u1234'0,0'1)};
constexpr int d {M(00'\u1234,0'1)};
static_assert(c == 1, "");
static_assert(d == 0, "");
}
namespace UTF8 {
// extended characters can appear before digit separators but not after.
int a = 0ሴ'5; // expected-error {{invalid suffix 'ሴ'5' on integer constant}}
int b = 0'ሴ5; // '; // expected-error {{expected ';'}}
constexpr int c {M(0ሴ'0,0'1)};
constexpr int d {M(00'ሴ,0'1)};
static_assert(c == 1, "");
static_assert(d == 0, "");
}
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