1/* Check NSString format extensions. */ 2/* { dg-do compile { target *-*-darwin* } } */ 3/* { dg-skip-if "" { *-*-* } { "-fgnu-runtime" } { "" } } */ 4/* { dg-options "-Wall" } */ 5 6#ifndef __CONSTANT_CFSTRINGS__ 7#error requires CFString 8#endif 9 10#ifdef __cplusplus 11extern "C" { 12#endif 13extern int printf (const char *fmt, ...); 14typedef const struct __CFString * CFStringRef; 15 16#ifdef __cplusplus 17} 18#endif 19 20@class NSString; 21 22int s1 (NSString *fmt, ...) __attribute__((format(NSString, 1, 2))) ; /* OK */ 23/* A CFString can represent an NSString. */ 24int s1a (CFStringRef fmt, ...) __attribute__((format(NSString, 1, 2))) ; /* OK */ 25/* But... it is possible that a CFString format might imply functionality that 26 is not present in objective-c. */ 27int s1b (NSString *fmt, ...) __attribute__((format(CFString, 1, 2))) ; /* { dg-error "format argument should be a .CFString. reference" } */ 28 29int s2 (int a, NSString *fmt, ... ) __attribute__((format(__NSString__, 2, 3))) ; /* OK */ 30 31int s2a (int a, NSString *fmt, ... ) __attribute__((format(NSString, 2, 2))) ; /* { dg-error "format string argument follows the args to be formatted" } */ 32 33int s3 (const char *fmt, ... ) __attribute__((format(__NSString__, 1, 2))) ; /* { dg-error "format argument should be a .NSString. reference but a string was found" } */ 34int s4 (NSString *fmt, ... ) __attribute__((format(printf, 1, 2))) ; /* { dg-error "found a .NSString. reference but the format argument should be a string" } */ 35 36char *s5 (char dum, char *fmt1, ... ) __attribute__((format_arg(2))) ; /* OK */ 37NSString *s6 (NSString *dum, NSString *fmt1, ... ) __attribute__((format_arg(2))) ; /* OK */ 38 39char *s7 (int dum, void *fmt1, ... ) __attribute__((format_arg(2))) ; /* { dg-error "format string argument is not a string type" } */ 40int s8 (NSString *dum, NSString *fmt1, ... ) __attribute__((format_arg(2))) ; /* { dg-error "function does not return string type" } */ 41 42char *s9 (int dum, char *fmt1, ... ) __attribute__((format_arg(2))) ; /* OK */ 43NSString *s10 (int dum, NSString *fmt1, ... ) __attribute__((format_arg(2))) ; /* OK */ 44 45void foo (void) 46{ 47 s1 (@"this format not checked %d %s", 3, 4); 48 printf("this one is checked %d %s", 3, 4, 5); /* { dg-warning "format '%s' expects argument of type 'char.', but argument 3 has type 'int'" } */ 49 /* { dg-warning "too many arguments for format" "" { target *-*-* } .-1 } */ 50 printf(s9 (1, (char *)"and so is this %d %d %s" , 3, 4, "hm"), 5, 6, 12); /* { dg-warning "format '%s' expects argument of type 'char.', but argument 4 has type 'int'" } */ 51} 52