239312e49b
`va_list` is a platform-specific type. On some, it is a struct instead of a pointer to a struct, so `lookupFn` was ignoring calls to `vfprintf` and `vfscanf`. `stream.c` now runs in four different platforms to make sure the logic works across targets.
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
// Like the compiler, the static analyzer treats some functions differently if
|
|
// they come from a system header -- for example, it is assumed that system
|
|
// functions do not arbitrarily free() their parameters, and that some bugs
|
|
// found in system headers cannot be fixed by the user and should be
|
|
// suppressed.
|
|
|
|
#pragma clang system_header
|
|
|
|
#ifdef __cplusplus
|
|
#define restrict /*restrict*/
|
|
#endif
|
|
|
|
typedef struct _FILE FILE;
|
|
|
|
typedef __builtin_va_list va_list;
|
|
|
|
#define va_start(ap, param) __builtin_va_start(ap, param)
|
|
#define va_end(ap) __builtin_va_end(ap)
|
|
#define va_arg(ap, type) __builtin_va_arg(ap, type)
|
|
#define va_copy(dst, src) __builtin_va_copy(dst, src)
|
|
|
|
int vprintf (const char *restrict format, va_list arg);
|
|
|
|
int vsprintf (char *restrict s, const char *restrict format, va_list arg);
|
|
|
|
int vfprintf(FILE *stream, const char *format, va_list ap);
|
|
|
|
int vfscanf(FILE *stream, const char *format, va_list ap);
|
|
|
|
int some_library_function(int n, va_list arg);
|
|
|
|
// No warning from system header.
|
|
inline void __impl_detail(int fst, ...) {
|
|
va_list va;
|
|
(void)va_arg(va, int);
|
|
}
|