1 | //RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | |
3 | #include <stdarg.h> |
4 | |
5 | void a(const char *a, ...) __attribute__((format(printf, 1,2))); // no-error |
6 | void b(const char *a, ...) __attribute__((format(printf, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}} |
7 | void c(const char *a, ...) __attribute__((format(printf, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}} |
8 | void d(const char *a, int c) __attribute__((format(printf, 1,2))); // expected-error {{format attribute requires variadic function}} |
9 | void e(char *str, int c, ...) __attribute__((format(printf, 2,3))); // expected-error {{format argument not a string type}} |
10 | |
11 | typedef const char* xpto; |
12 | void f(xpto c, va_list list) __attribute__((format(printf, 1, 0))); // no-error |
13 | void g(xpto c) __attribute__((format(printf, 1, 0))); // no-error |
14 | |
15 | void y(char *str) __attribute__((format(strftime, 1,0))); // no-error |
16 | void z(char *str, int c, ...) __attribute__((format(strftime, 1,2))); // expected-error {{strftime format attribute requires 3rd parameter to be 0}} |
17 | |
18 | int (*f_ptr)(char*,...) __attribute__((format(printf, 1,2))); // no-error |
19 | int (*f2_ptr)(double,...) __attribute__((format(printf, 1, 2))); // expected-error {{format argument not a string type}} |
20 | |
21 | struct _mystruct { |
22 | int (*printf)(const char *format, ...) __attribute__((__format__(printf, 1, 2))); // no-error |
23 | int (*printf2)(double format, ...) __attribute__((__format__(printf, 1, 2))); // expected-error {{format argument not a string type}} |
24 | }; |
25 | |
26 | typedef int (*f3_ptr)(char*,...) __attribute__((format(printf,1,0))); // no-error |
27 | |
28 | // <rdar://problem/6623513> |
29 | int rdar6623513(void *, const char*, const char*, ...) |
30 | __attribute__ ((format (printf, 3, 0))); |
31 | |
32 | int rdar6623513_aux(int len, const char* s) { |
33 | rdar6623513(0, "hello", "%.*s", len, s); |
34 | } |
35 | |
36 | |
37 | |
38 | // same as format(printf(...))... |
39 | void a2(const char *a, ...) __attribute__((format(printf0, 1,2))); // no-error |
40 | void b2(const char *a, ...) __attribute__((format(printf0, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}} |
41 | void c2(const char *a, ...) __attribute__((format(printf0, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}} |
42 | void d2(const char *a, int c) __attribute__((format(printf0, 1,2))); // expected-error {{format attribute requires variadic function}} |
43 | void e2(char *str, int c, ...) __attribute__((format(printf0, 2,3))); // expected-error {{format argument not a string type}} |
44 | |
45 | // FreeBSD usage |
46 | #define __printf0like(fmt,va) __attribute__((__format__(__printf0__,fmt,va))) |
47 | void null(int i, const char *a, ...) __printf0like(2,0); // no-error |
48 | void null(int i, const char *a, ...) { // expected-note{{passing argument to parameter 'a' here}} |
49 | if (a) |
50 | (void)0/* vprintf(...) would go here */; |
51 | } |
52 | |
53 | void callnull(void){ |
54 | null(0, 0); // no error |
55 | null(0, (char*)0); // no error |
56 | null(0, (void*)0); // no error |
57 | null(0, (int*)0); // expected-warning {{incompatible pointer types}} |
58 | } |
59 | |
60 | // FreeBSD kernel extensions |
61 | void a3(const char *a, ...) __attribute__((format(freebsd_kprintf, 1,2))); // no-error |
62 | void b3(const char *a, ...) __attribute__((format(freebsd_kprintf, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}} |
63 | void c3(const char *a, ...) __attribute__((format(freebsd_kprintf, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}} |
64 | void d3(const char *a, int c) __attribute__((format(freebsd_kprintf, 1,2))); // expected-error {{format attribute requires variadic function}} |
65 | void e3(char *str, int c, ...) __attribute__((format(freebsd_kprintf, 2,3))); // expected-error {{format argument not a string type}} |
66 | |
67 | |
68 | |
69 | // PR4470 |
70 | int xx_vprintf(const char *, va_list); |
71 | |
72 | const char *foo(const char *format) __attribute__((format_arg(1))); |
73 | |
74 | void __attribute__((format(printf, 1, 0))) |
75 | foo2(const char *fmt, va_list va) { |
76 | xx_vprintf(foo(fmt), va); |
77 | } |
78 | |
79 | // PR6542 |
80 | extern void gcc_format (const char *, ...) |
81 | __attribute__ ((__format__(__gcc_diag__, 1, 2))); |
82 | extern void gcc_cformat (const char *, ...) |
83 | __attribute__ ((__format__(__gcc_cdiag__, 1, 2))); |
84 | extern void gcc_cxxformat (const char *, ...) |
85 | __attribute__ ((__format__(__gcc_cxxdiag__, 1, 2))); |
86 | extern void gcc_tformat (const char *, ...) |
87 | __attribute__ ((__format__(__gcc_tdiag__, 1, 2))); |
88 | |
89 | const char *foo3(const char *format) __attribute__((format_arg("foo"))); // expected-error{{'format_arg' attribute requires parameter 1 to be an integer constant}} |
90 | |