89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -Wformat -verify %s -Wno-error=non-pod-varargs
|
|
// RUN: %clang_cc1 -fsyntax-only -Wformat -verify -std=c++98 %s -Wno-error=non-pod-varargs
|
|
// RUN: %clang_cc1 -fsyntax-only -Wformat -verify -std=c++11 %s -Wno-error=non-pod-varargs
|
|
|
|
#include <stdarg.h>
|
|
|
|
extern "C" {
|
|
extern int printf(const char *restrict, ...);
|
|
extern int sprintf(char *, const char *restrict, ...);
|
|
}
|
|
|
|
class HasCStr {
|
|
const char *str;
|
|
public:
|
|
HasCStr(const char *s): str(s) { }
|
|
const char *c_str() {return str;}
|
|
};
|
|
|
|
class HasNoCStr {
|
|
const char *str;
|
|
public:
|
|
HasNoCStr(const char *s): str(s) { }
|
|
const char *not_c_str() {return str;}
|
|
};
|
|
|
|
extern const char extstr[16];
|
|
void pod_test() {
|
|
char str[] = "test";
|
|
char dest[32];
|
|
char formatString[] = "non-const %s %s";
|
|
HasCStr hcs(str);
|
|
HasNoCStr hncs(str);
|
|
int n = 10;
|
|
|
|
printf("%d: %s\n", n, hcs.c_str());
|
|
printf("%d: %s\n", n, hcs);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass non-POD object of type 'HasCStr' to variadic function; expected type from format string was 'char *'}}
|
|
// expected-note@-3 {{did you mean to call the c_str() method?}}
|
|
#else
|
|
// expected-warning@-5 {{format specifies type 'char *' but the argument has type 'HasCStr'}}
|
|
#endif
|
|
|
|
printf("%d: %s\n", n, hncs);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass non-POD object of type 'HasNoCStr' to variadic function; expected type from format string was 'char *'}}
|
|
#else
|
|
// expected-warning@-4 {{format specifies type 'char *' but the argument has type 'HasNoCStr'}}
|
|
#endif
|
|
|
|
sprintf(str, "%d: %s", n, hcs);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass non-POD object of type 'HasCStr' to variadic function; expected type from format string was 'char *'}}
|
|
// expected-note@-3 {{did you mean to call the c_str() method?}}
|
|
#else
|
|
// expected-warning@-5 {{format specifies type 'char *' but the argument has type 'HasCStr'}}
|
|
#endif
|
|
|
|
printf(formatString, hcs, hncs);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass object of non-POD type 'HasCStr' through variadic function}}
|
|
// expected-warning@-3 {{cannot pass object of non-POD type 'HasNoCStr' through variadic function}}
|
|
#endif
|
|
|
|
printf(extstr, hcs, n);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass object of non-POD type 'HasCStr' through variadic function}}
|
|
#endif
|
|
}
|
|
|
|
struct Printf {
|
|
Printf();
|
|
Printf(const Printf&);
|
|
Printf(const char *,...) __attribute__((__format__(__printf__,2,3)));
|
|
};
|
|
|
|
void constructor_test() {
|
|
const char str[] = "test";
|
|
HasCStr hcs(str);
|
|
Printf p("%s %d %s", str, 10, 10); // expected-warning {{format specifies type 'char *' but the argument has type 'int'}}
|
|
Printf q("%s %d", hcs, 10);
|
|
#if __cplusplus <= 199711L
|
|
// expected-warning@-2 {{cannot pass non-POD object of type 'HasCStr' to variadic constructor; expected type from format string was 'char *'}}
|
|
// expected-note@-3 {{did you mean to call the c_str() method?}}
|
|
#else
|
|
// expected-warning@-5 {{format specifies type 'char *' but the argument has type 'HasCStr'}}
|
|
#endif
|
|
}
|