1 | // RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral -pedantic %s |
2 | |
3 | #include <stdarg.h> |
4 | |
5 | extern "C" { |
6 | extern int scanf(const char *restrict, ...); |
7 | extern int printf(const char *restrict, ...); |
8 | extern int vprintf(const char *restrict, va_list); |
9 | } |
10 | |
11 | @class NSString; |
12 | |
13 | @interface Format |
14 | + (void)print:(NSString *)format, ... __attribute__((format(NSString, 1, 2))); |
15 | @end |
16 | |
17 | |
18 | namespace Templates { |
19 | template<typename T> |
20 | void my_uninstantiated_print(const T &arg) { |
21 | [Format print:@"%d", arg]; |
22 | } |
23 | |
24 | template<typename T> |
25 | void my_print(const T &arg) { |
26 | [Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}} |
27 | } |
28 | |
29 | void use_my_print() { |
30 | my_print("abc"); // expected-note {{requested here}} |
31 | } |
32 | |
33 | |
34 | template<typename T> |
35 | class UninstantiatedPrinter { |
36 | public: |
37 | static void print(const T &arg) { |
38 | [Format print:@"%d", arg]; // no-warning |
39 | } |
40 | }; |
41 | |
42 | template<typename T> |
43 | class Printer { |
44 | public: |
45 | void print(const T &arg) { |
46 | [Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}} |
47 | } |
48 | }; |
49 | |
50 | void use_class(Printer<const char *> &p) { |
51 | p.print("abc"); // expected-note {{requested here}} |
52 | } |
53 | |
54 | |
55 | template<typename T> |
56 | class UninstantiatedWrapper { |
57 | public: |
58 | class Printer { |
59 | public: |
60 | void print(const T &arg) { |
61 | [Format print:@"%d", arg]; // no-warning |
62 | } |
63 | }; |
64 | }; |
65 | |
66 | template<typename T> |
67 | class Wrapper { |
68 | public: |
69 | class Printer { |
70 | public: |
71 | void print(const T &arg) { |
72 | [Format print:@"%d", arg]; // expected-warning {{format specifies type 'int' but the argument has type 'const char *'}} |
73 | } |
74 | }; |
75 | }; |
76 | |
77 | void use_class(Wrapper<const char *>::Printer &p) { |
78 | p.print("abc"); // expected-note {{requested here}} |
79 | } |
80 | } |
81 | |
82 | |