Mercurial > hg > CbC > CbC_llvm

comparison clang/test/Sema/attr-format.c @ 150:1d019706d866

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children c4bab56944e8
comparison
equal deleted inserted replaced
147:c2174574ed3a 150:1d019706d866
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}}