151 lines
3.3 KiB
C++
151 lines
3.3 KiB
C++
// RUN: %clang_cc1 -E %s -pedantic -std=c++20 | FileCheck -strict-whitespace %s
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// RUN: %clang_cc1 -E %s -pedantic -std=c++11 | FileCheck -strict-whitespace %s
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// RUN: %clang_cc1 -E -x c %s -pedantic -std=c99 | FileCheck -strict-whitespace %s
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#define LPAREN (
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#define RPAREN )
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#define A0 expandedA0
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#define A1 expandedA1 A0
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#define A2 expandedA2 A1
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#define A3 expandedA3 A2
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#define A() B LPAREN )
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#define B() C LPAREN )
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#define C() D LPAREN )
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#define F(x, y) x + y
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#define ELLIP_FUNC(...) __VA_OPT__(__VA_ARGS__)
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1: ELLIP_FUNC(F, LPAREN, 'a', 'b', RPAREN);
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2: ELLIP_FUNC(F LPAREN 'a', 'b' RPAREN);
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#undef F
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#undef ELLIP_FUNC
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// CHECK: 1: F, (, 'a', 'b', );
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// CHECK: 2: 'a' + 'b';
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#define F(...) f(0 __VA_OPT__(,) __VA_ARGS__)
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3: F(a, b, c) // replaced by f(0, a, b, c)
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4: F() // replaced by f(0)
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// CHECK: 3: f(0 , a, b, c)
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// CHECK: 4: f(0 )
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#undef F
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#define G(X, ...) f(0, X __VA_OPT__(,) __VA_ARGS__)
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5: G(a, b, c) // replaced by f(0, a , b, c)
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6: G(a) // replaced by f(0, a)
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7: G(a,) // replaced by f(0, a)
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7.1: G(a,,)
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// CHECK: 5: f(0, a , b, c)
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// CHECK: 6: f(0, a )
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// CHECK: 7: f(0, a )
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// CHECK: 7.1: f(0, a , ,)
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#undef G
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#define HT_B() TONG
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#define F(x, ...) HT_ ## __VA_OPT__(x x A() #x)
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8: F(1)
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9: F(A(),1)
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// CHECK: 8: HT_
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// CHECK: 9: TONG C ( ) B ( ) "A()"
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#undef HT_B
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#undef F
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#define F(a,...) #__VA_OPT__(A1 a)
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10: F(A())
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11: F(A1 A(), 1)
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// CHECK: 10: ""
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// CHECK: 11: "A1 expandedA1 expandedA0 B ( )"
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#undef F
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#define F(a,...) a ## __VA_OPT__(A1 a) ## __VA_ARGS__ ## a
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12.0: F()
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12: F(,)
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13: F(B,)
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// CHECK: 12.0:
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// CHECK: 12:
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// CHECK: 13: BB
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#undef F
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#define F(...) #__VA_OPT__() X ## __VA_OPT__() #__VA_OPT__( )
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14: F()
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15: F(1)
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// CHECK: 14: "" X ""
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// CHECK: 15: "" X ""
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#undef F
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#define SDEF(sname, ...) S sname __VA_OPT__(= { __VA_ARGS__ })
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16: SDEF(foo); // replaced by S foo;
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17: SDEF(bar, 1, 2); // replaced by S bar = { 1, 2 };
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// CHECK: 16: S foo ;
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// CHECK: 17: S bar = { 1, 2 };
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#undef SDEF
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#define F(a,...) A() #__VA_OPT__(A3 __VA_ARGS__ a ## __VA_ARGS__ ## a ## C A3) A()
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18: F()
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19: F(,)
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20: F(,A3)
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21: F(A3, A(),A0)
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// CHECK: 18: B ( ) "" B ( )
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// CHECK: 19: B ( ) "" B ( )
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// CHECK: 20: B ( ) "A3 expandedA3 expandedA2 expandedA1 expandedA0 A3C A3" B ( )
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// CHECK: 21: B ( ) "A3 B ( ),expandedA0 A3A(),A0A3C A3" B ( )
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#undef F
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#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()
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22: F()
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23: F(,)
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24: F(,A0)
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25: F(A0, A(),A0)
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// CHECK: 22: B ( ) "" B ( )
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// CHECK: 23: B ( ) "" B ( )
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// CHECK: 24: B ( ) "A3 expandedA0 A0C A3" expandedA0 expandedA0 A0C expandedA0 B ( )
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// CHECK: 25: B ( ) "A3 B ( ),expandedA0 A0A(),A0A0C A3" expandedA0 expandedA0 C ( ),expandedA0 A0A(),A0A0C expandedA0 B ( )
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#undef F
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#define F(a,...) __VA_OPT__(B a ## a) ## 1
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#define G(a,...) __VA_OPT__(B a) ## 1
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26: F(,1)
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26_1: G(,1)
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// CHECK: 26: B 1
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// CHECK: 26_1: B 1
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#undef F
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#undef G
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#define F(a,...) B ## __VA_OPT__(a 1) ## 1
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#define G(a,...) B ## __VA_OPT__(a ## a 1) ## 1
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27: F(,1)
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27_1: F(A0,1)
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28: G(,1)
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// CHECK: 27: B 11
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// CHECK: 27_1: BexpandedA0 11
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// CHECK: 28: B 11
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#undef F
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#undef G
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