gnu-flags.c revision a5e77a89098fc5bd1398c1c96dd231ae359bcf01 
1// RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE
2// RUN: %clang_cc1 -fsyntax-only -verify %s -DALL -Wgnu
3// RUN: %clang_cc1 -fsyntax-only -verify %s -DALL \
4// RUN:   -Wgnu-zero-variadic-macro-arguments \
5// RUN:   -Wgnu-imaginary-constant -Wgnu-binary-literal -Wgnu-zero-line-directive
6// RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE -Wgnu \
7// RUN:   -Wno-gnu-zero-variadic-macro-arguments \
8// RUN:   -Wno-gnu-imaginary-constant -Wno-gnu-binary-literal -Wno-gnu-zero-line-directive
9// Additional disabled tests:
10// %clang_cc1 -fsyntax-only -verify %s -DZEROARGS -Wgnu-zero-variadic-macro-arguments
11// %clang_cc1 -fsyntax-only -verify %s -DIMAGINARYCONST -Wgnu-imaginary-constant
12// %clang_cc1 -fsyntax-only -verify %s -DBINARYLITERAL -Wgnu-binary-literal
13// %clang_cc1 -fsyntax-only -verify %s -DLINE0 -Wgnu-zero-line-directive
14
15#if NONE
16// expected-no-diagnostics
17#endif
18
19
20#if ALL || ZEROARGS
21// expected-warning@+9 {{must specify at least one argument for '...' parameter of variadic macro}}
22// expected-note@+4 {{macro 'efoo' defined here}}
23// expected-warning@+3 {{token pasting of ',' and __VA_ARGS__ is a GNU extension}}
24#endif
25
26#define efoo(format, args...) foo(format , ##args)
27
28void foo( const char* c )
29{
30  efoo("6");
31}
32
33
34#if ALL || IMAGINARYCONST
35// expected-warning@+3 {{imaginary constants are a GNU extension}}
36#endif
37
38float _Complex c = 1.if;
39
40
41#if ALL || BINARYLITERAL
42// expected-warning@+3 {{binary integer literals are a GNU extension}}
43#endif
44
45int b = 0b0101;
46
47
48// This case is handled differently because lit has a bug whereby #line 0 is reported to be on line 4294967295
49// http://llvm.org/bugs/show_bug.cgi?id=16952
50#if ALL || LINE0
51#line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
52#else
53#line 0
54#endif
55
56// WARNING: Do not add more tests after the #line 0 line!  Add them before the LINE0 test
57