1 // Like the compiler, the static analyzer treats some functions differently if
2 // they come from a system header -- for example, it is assumed that system
3 // functions do not arbitrarily free() their parameters, and that some bugs
4 // found in system headers cannot be fixed by the user and should be
5 // suppressed.
6
7 #pragma clang system_header
8
9 #ifdef __cplusplus
10 #define restrict /*restrict*/
11 #endif
12
13 typedef __builtin_va_list va_list;
14
15 #define va_start(ap, param) __builtin_va_start(ap, param)
16 #define va_end(ap) __builtin_va_end(ap)
17 #define va_arg(ap, type) __builtin_va_arg(ap, type)
18 #define va_copy(dst, src) __builtin_va_copy(dst, src)
19
20 int vprintf (const char *restrict format, va_list arg);
21
22 int vsprintf (char *restrict s, const char *restrict format, va_list arg);
23
24 int some_library_function(int n, va_list arg);
25
26 // No warning from system header.
__impl_detail(int fst,...)27 inline void __impl_detail(int fst, ...) {
28 va_list va;
29 (void)va_arg(va, int);
30 }
31