xref: /aosp_15_r20/external/clang/test/Lexer/gnu-flags.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE
2*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s -DALL -Wgnu
3*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s -DALL \
4*67e74705SXin Li // RUN:   -Wgnu-zero-variadic-macro-arguments \
5*67e74705SXin Li // RUN:   -Wgnu-imaginary-constant -Wgnu-binary-literal -Wgnu-zero-line-directive
6*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE -Wgnu \
7*67e74705SXin Li // RUN:   -Wno-gnu-zero-variadic-macro-arguments \
8*67e74705SXin Li // RUN:   -Wno-gnu-imaginary-constant -Wno-gnu-binary-literal -Wno-gnu-zero-line-directive
9*67e74705SXin Li // Additional disabled tests:
10*67e74705SXin Li // %clang_cc1 -fsyntax-only -verify %s -DZEROARGS -Wgnu-zero-variadic-macro-arguments
11*67e74705SXin Li // %clang_cc1 -fsyntax-only -verify %s -DIMAGINARYCONST -Wgnu-imaginary-constant
12*67e74705SXin Li // %clang_cc1 -fsyntax-only -verify %s -DBINARYLITERAL -Wgnu-binary-literal
13*67e74705SXin Li // %clang_cc1 -fsyntax-only -verify %s -DLINE0 -Wgnu-zero-line-directive
14*67e74705SXin Li 
15*67e74705SXin Li #if NONE
16*67e74705SXin Li // expected-no-diagnostics
17*67e74705SXin Li #endif
18*67e74705SXin Li 
19*67e74705SXin Li 
20*67e74705SXin Li #if ALL || ZEROARGS
21*67e74705SXin Li // expected-warning@+9 {{must specify at least one argument for '...' parameter of variadic macro}}
22*67e74705SXin Li // expected-note@+4 {{macro 'efoo' defined here}}
23*67e74705SXin Li // expected-warning@+3 {{token pasting of ',' and __VA_ARGS__ is a GNU extension}}
24*67e74705SXin Li #endif
25*67e74705SXin Li 
26*67e74705SXin Li #define efoo(format, args...) foo(format , ##args)
27*67e74705SXin Li 
foo(const char * c)28*67e74705SXin Li void foo( const char* c )
29*67e74705SXin Li {
30*67e74705SXin Li   efoo("6");
31*67e74705SXin Li }
32*67e74705SXin Li 
33*67e74705SXin Li 
34*67e74705SXin Li #if ALL || IMAGINARYCONST
35*67e74705SXin Li // expected-warning@+3 {{imaginary constants are a GNU extension}}
36*67e74705SXin Li #endif
37*67e74705SXin Li 
38*67e74705SXin Li float _Complex c = 1.if;
39*67e74705SXin Li 
40*67e74705SXin Li 
41*67e74705SXin Li #if ALL || BINARYLITERAL
42*67e74705SXin Li // expected-warning@+3 {{binary integer literals are a GNU extension}}
43*67e74705SXin Li #endif
44*67e74705SXin Li 
45*67e74705SXin Li int b = 0b0101;
46*67e74705SXin Li 
47*67e74705SXin Li 
48*67e74705SXin Li // This case is handled differently because lit has a bug whereby #line 0 is reported to be on line 4294967295
49*67e74705SXin Li // http://llvm.org/bugs/show_bug.cgi?id=16952
50*67e74705SXin Li #if ALL || LINE0
51*67e74705SXin Li #line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
52*67e74705SXin Li #else
53*67e74705SXin Li #line 0
54*67e74705SXin Li #endif
55*67e74705SXin Li 
56*67e74705SXin Li // WARNING: Do not add more tests after the #line 0 line!  Add them before the LINE0 test
57