149 lines
3.1 KiB
C++
149 lines
3.1 KiB
C++
// RUN: %clang_cc1 -E %s -pedantic -std=c++2a | FileCheck -strict-whitespace %s
|
|
|
|
#define LPAREN (
|
|
#define RPAREN )
|
|
|
|
#define A0 expandedA0
|
|
#define A1 expandedA1 A0
|
|
#define A2 expandedA2 A1
|
|
#define A3 expandedA3 A2
|
|
|
|
#define A() B LPAREN )
|
|
#define B() C LPAREN )
|
|
#define C() D LPAREN )
|
|
|
|
|
|
#define F(x, y) x + y
|
|
#define ELLIP_FUNC(...) __VA_OPT__(__VA_ARGS__)
|
|
|
|
1: ELLIP_FUNC(F, LPAREN, 'a', 'b', RPAREN);
|
|
2: ELLIP_FUNC(F LPAREN 'a', 'b' RPAREN);
|
|
#undef F
|
|
#undef ELLIP_FUNC
|
|
|
|
// CHECK: 1: F, (, 'a', 'b', );
|
|
// CHECK: 2: 'a' + 'b';
|
|
|
|
#define F(...) f(0 __VA_OPT__(,) __VA_ARGS__)
|
|
3: F(a, b, c) // replaced by f(0, a, b, c)
|
|
4: F() // replaced by f(0)
|
|
|
|
// CHECK: 3: f(0 , a, b, c)
|
|
// CHECK: 4: f(0 )
|
|
#undef F
|
|
|
|
#define G(X, ...) f(0, X __VA_OPT__(,) __VA_ARGS__)
|
|
|
|
5: G(a, b, c) // replaced by f(0, a , b, c)
|
|
6: G(a) // replaced by f(0, a)
|
|
7: G(a,) // replaced by f(0, a)
|
|
7.1: G(a,,)
|
|
|
|
|
|
// CHECK: 5: f(0, a , b, c)
|
|
// CHECK: 6: f(0, a )
|
|
// CHECK: 7: f(0, a )
|
|
// CHECK: 7.1: f(0, a , ,)
|
|
#undef G
|
|
|
|
#define HT_B() TONG
|
|
|
|
#define F(x, ...) HT_ ## __VA_OPT__(x x A() #x)
|
|
|
|
8: F(1)
|
|
9: F(A(),1)
|
|
|
|
// CHECK: 8: HT_
|
|
// CHECK: 9: TONG C ( ) B ( ) "A()"
|
|
#undef HT_B
|
|
#undef F
|
|
|
|
#define F(a,...) #__VA_OPT__(A1 a)
|
|
|
|
10: F(A())
|
|
11: F(A1 A(), 1)
|
|
// CHECK: 10: ""
|
|
// CHECK: 11: "A1 expandedA1 expandedA0 B ( )"
|
|
#undef F
|
|
|
|
|
|
#define F(a,...) a ## __VA_OPT__(A1 a) ## __VA_ARGS__ ## a
|
|
12.0: F()
|
|
12: F(,)
|
|
13: F(B,)
|
|
// CHECK: 12.0:
|
|
// CHECK: 12:
|
|
// CHECK: 13: BB
|
|
#undef F
|
|
|
|
#define F(...) #__VA_OPT__() X ## __VA_OPT__() #__VA_OPT__( )
|
|
|
|
14: F()
|
|
15: F(1)
|
|
|
|
// CHECK: 14: "" X ""
|
|
// CHECK: 15: "" X ""
|
|
|
|
#undef F
|
|
|
|
#define SDEF(sname, ...) S sname __VA_OPT__(= { __VA_ARGS__ })
|
|
|
|
16: SDEF(foo); // replaced by S foo;
|
|
17: SDEF(bar, 1, 2); // replaced by S bar = { 1, 2 };
|
|
|
|
// CHECK: 16: S foo ;
|
|
// CHECK: 17: S bar = { 1, 2 };
|
|
#undef SDEF
|
|
|
|
#define F(a,...) A() #__VA_OPT__(A3 __VA_ARGS__ a ## __VA_ARGS__ ## a ## C A3) A()
|
|
|
|
18: F()
|
|
19: F(,)
|
|
20: F(,A3)
|
|
21: F(A3, A(),A0)
|
|
|
|
|
|
// CHECK: 18: B ( ) "" B ( )
|
|
// CHECK: 19: B ( ) "" B ( )
|
|
// CHECK: 20: B ( ) "A3 expandedA3 expandedA2 expandedA1 expandedA0 A3C A3" B ( )
|
|
// CHECK: 21: B ( ) "A3 B ( ),expandedA0 A3A(),A0A3C A3" B ( )
|
|
|
|
#undef F
|
|
|
|
#define F(a,...) A() #__VA_OPT__(A3 __VA_ARGS__ a ## __VA_ARGS__ ## a ## C A3) a __VA_OPT__(A0 __VA_ARGS__ a ## __VA_ARGS__ ## a ## C A0) A()
|
|
|
|
22: F()
|
|
23: F(,)
|
|
24: F(,A0)
|
|
25: F(A0, A(),A0)
|
|
|
|
|
|
// CHECK: 22: B ( ) "" B ( )
|
|
// CHECK: 23: B ( ) "" B ( )
|
|
// CHECK: 24: B ( ) "A3 expandedA0 A0C A3" expandedA0 expandedA0 A0C expandedA0 B ( )
|
|
// CHECK: 25: B ( ) "A3 B ( ),expandedA0 A0A(),A0A0C A3" expandedA0 expandedA0 C ( ),expandedA0 A0A(),A0A0C expandedA0 B ( )
|
|
|
|
#undef F
|
|
|
|
#define F(a,...) __VA_OPT__(B a ## a) ## 1
|
|
#define G(a,...) __VA_OPT__(B a) ## 1
|
|
26: F(,1)
|
|
26_1: G(,1)
|
|
// CHECK: 26: B 1
|
|
// CHECK: 26_1: B 1
|
|
#undef F
|
|
#undef G
|
|
|
|
#define F(a,...) B ## __VA_OPT__(a 1) ## 1
|
|
#define G(a,...) B ## __VA_OPT__(a ## a 1) ## 1
|
|
|
|
27: F(,1)
|
|
27_1: F(A0,1)
|
|
28: G(,1)
|
|
// CHECK: 27: B 11
|
|
// CHECK: 27_1: BexpandedA0 11
|
|
// CHECK: 28: B 11
|
|
|
|
#undef F
|
|
#undef G
|