1 files changed, 80 insertions, 0 deletions
diff --git a/test/Sema/attr-format.c b/test/Sema/attr-format.c
new file mode 100644
index 0000000..0fadf98
--- /dev/null
+++ b/test/Sema/attr-format.c
@@ -0,0 +1,80 @@
+//RUN: %clang_cc1 -fsyntax-only -verify %s
+
+#include <stdarg.h>
+
+void a(const char *a, ...) __attribute__((format(printf, 1,2))); // no-error
+void b(const char *a, ...) __attribute__((format(printf, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}}
+void c(const char *a, ...) __attribute__((format(printf, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}}
+void d(const char *a, int c) __attribute__((format(printf, 1,2))); // expected-error {{format attribute requires variadic function}}
+void e(char *str, int c, ...) __attribute__((format(printf, 2,3))); // expected-error {{format argument not a string type}}
+
+typedef const char* xpto;
+void f(xpto c, va_list list) __attribute__((format(printf, 1, 0))); // no-error
+void g(xpto c) __attribute__((format(printf, 1, 0))); // no-error
+
+void y(char *str) __attribute__((format(strftime, 1,0))); // no-error
+void z(char *str, int c, ...) __attribute__((format(strftime, 1,2))); // expected-error {{strftime format attribute requires 3rd parameter to be 0}}
+
+int (*f_ptr)(char*,...) __attribute__((format(printf, 1,2))); // no-error
+int (*f2_ptr)(double,...) __attribute__((format(printf, 1, 2))); // expected-error {{format argument not a string type}}
+
+struct _mystruct {
+  int (*printf)(const char *format, ...) __attribute__((__format__(printf, 1, 2))); // no-error
+  int (*printf2)(double format, ...) __attribute__((__format__(printf, 1, 2))); // expected-error {{format argument not a string type}}
+};
+
+typedef int (*f3_ptr)(char*,...) __attribute__((format(printf,1,0))); // no-error
+
+// <rdar://problem/6623513>
+int rdar6623513(void *, const char*, const char*, ...)
+  __attribute__ ((format (printf, 3, 0)));
+
+int rdar6623513_aux(int len, const char* s) {
+  rdar6623513(0, "hello", "%.*s", len, s);
+}
+
+
+
+// same as format(printf(...))...
+void a2(const char *a, ...)    __attribute__((format(printf0, 1,2))); // no-error
+void b2(const char *a, ...)    __attribute__((format(printf0, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}}
+void c2(const char *a, ...)    __attribute__((format(printf0, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}}
+void d2(const char *a, int c)  __attribute__((format(printf0, 1,2))); // expected-error {{format attribute requires variadic function}}
+void e2(char *str, int c, ...) __attribute__((format(printf0, 2,3))); // expected-error {{format argument not a string type}}
+
+// FreeBSD usage
+#define __printf0like(fmt,va) __attribute__((__format__(__printf0__,fmt,va)))
+void null(int i, const char *a, ...) __printf0like(2,0); // no-error
+void null(int i, const char *a, ...) {
+  if (a)
+    (void)0/* vprintf(...) would go here */;
+}
+
+void callnull(void){
+  null(0,        0); // no error
+  null(0, (char*)0); // no error
+  null(0, (void*)0); // no error
+  null(0,  (int*)0); // expected-warning {{incompatible pointer types}}
+}
+
+
+
+// PR4470
+int xx_vprintf(const char *, va_list);
+
+const char *foo(const char *format) __attribute__((format_arg(1)));
+
+void __attribute__((format(printf, 1, 0)))
+foo2(const char *fmt, va_list va) {
+  xx_vprintf(foo(fmt), va);
+}
+
+// PR6542
+extern void gcc_format (const char *, ...)
+  __attribute__ ((__format__(__gcc_diag__, 1, 2)));
+extern void gcc_cformat (const char *, ...)
+  __attribute__ ((__format__(__gcc_cdiag__, 1, 2)));
+extern void gcc_cxxformat (const char *, ...)
+  __attribute__ ((__format__(__gcc_cxxdiag__, 1, 2)));
+extern void gcc_tformat (const char *, ...)
+  __attribute__ ((__format__(__gcc_tdiag__, 1, 2)));