ucn-allowed-chars.c revision ed9c59f2ae338f6f70c1fed2ce7b0d8a5eb3ba1c 
1// RUN: %clang_cc1 %s -fsyntax-only -std=c99 -verify
2// RUN: %clang_cc1 %s -fsyntax-only -std=c11 -Wc99-compat -verify
3// RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++03 -Wc++11-compat -verify
4// RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++11 -Wc++98-compat -verify
5
6// Identifier characters
7extern char a\u01F6; // C11, C++11
8extern char a\u00AA; // C99, C11, C++11
9extern char a\u0384; // C++03, C11, C++11
10extern char a\u0E50; // C99, C++03, C11, C++11
11extern char a\uFFFF; // none
12
13
14
15
16
17// Identifier initial characters
18extern char \u0E50; // C++03, C11, C++11
19extern char \u0300; // disallowed initially in C11/C++11, always in C99/C++03
20
21
22
23
24
25
26
27
28// Disallowed everywhere
29#define A \u0000 // expected-error{{control character}}
30#define B \u001F // expected-error{{control character}}
31#define C \u007F // expected-error{{control character}}
32#define D \u009F // expected-error{{control character}}
33#define E \uD800 // C++03 allows UCNs representing surrogate characters!
34
35
36
37
38
39
40#if __cplusplus
41# if __cplusplus >= 201103L
42// C++11
43// expected-warning@7 {{using this character in an identifier is incompatible with C++98}}
44// expected-warning@8 {{using this character in an identifier is incompatible with C++98}}
45// expected-error@11 {{expected ';'}}
46// expected-error@19 {{expected unqualified-id}}
47// expected-error@33 {{invalid universal character}}
48
49# else
50// C++03
51// expected-error@7 {{expected ';'}}
52// expected-error@8 {{expected ';'}}
53// expected-error@11 {{expected ';'}}
54// expected-error@19 {{expected unqualified-id}}
55// expected-warning@33 {{universal character name refers to a surrogate character}}
56
57# endif
58#else
59# if __STDC_VERSION__ >= 201112L
60// C11
61// expected-warning@7 {{using this character in an identifier is incompatible with C99}}
62// expected-warning@9 {{using this character in an identifier is incompatible with C99}}
63// expected-error@11 {{expected ';'}}
64// expected-warning@18 {{starting an identifier with this character is incompatible with C99}}
65// expected-error@19 {{expected identifier}}
66// expected-error@33 {{invalid universal character}}
67
68# else
69// C99
70// expected-error@7 {{expected ';'}}
71// expected-error@9 {{expected ';'}}
72// expected-error@11 {{expected ';'}}
73// expected-error@18 {{expected identifier}}
74// expected-error@19 {{expected identifier}}
75// expected-error@33 {{invalid universal character}}
76
77# endif
78#endif
79