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1 // RUN: %clang_cc1 -fsyntax-only -verify -fms-compatibility -triple=i386-pc-win32 %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -fms-compatibility -triple=i386-pc-win32 -Wformat-non-iso -DNON_ISO_WARNING %s
3 
4 int printf(const char *format, ...) __attribute__((format(printf, 1, 2)));
5 int scanf(const char * restrict, ...) ;
6 typedef unsigned short wchar_t;
7 
8 #ifdef NON_ISO_WARNING
9 
10 // Split off this test to reduce the warning noise in the rest of the file.
non_iso_warning_test(__int32 i32,__int64 i64,wchar_t c,void * p)11 void non_iso_warning_test(__int32 i32, __int64 i64, wchar_t c, void *p) {
12   printf("%Id", i32); // expected-warning{{'I' length modifier is not supported by ISO C}}
13   printf("%I32d", i32); // expected-warning{{'I32' length modifier is not supported by ISO C}}
14   printf("%I64d", i64); // expected-warning{{'I64' length modifier is not supported by ISO C}}
15   printf("%wc", c); // expected-warning{{'w' length modifier is not supported by ISO C}}
16   printf("%Z", p); // expected-warning{{'Z' conversion specifier is not supported by ISO C}}
17 }
18 
19 #else
20 
signed_test()21 void signed_test() {
22   short val = 30;
23   printf("val = %I64d\n", val); // expected-warning{{format specifies type '__int64' (aka 'long long') but the argument has type 'short'}}
24   long long bigval = 30;
25   printf("val = %I32d\n", bigval); // expected-warning{{format specifies type '__int32' (aka 'int') but the argument has type 'long long'}}
26   printf("val = %Id\n", bigval); // expected-warning{{format specifies type '__int32' (aka 'int') but the argument has type 'long long'}}
27 }
28 
unsigned_test()29 void unsigned_test() {
30   unsigned short val = 30;
31   printf("val = %I64u\n", val); // expected-warning{{format specifies type 'unsigned __int64' (aka 'unsigned long long') but the argument has type 'unsigned short'}}
32   unsigned long long bigval = 30;
33   printf("val = %I32u\n", bigval); // expected-warning{{format specifies type 'unsigned __int32' (aka 'unsigned int') but the argument has type 'unsigned long long'}}
34   printf("val = %Iu\n", bigval); // expected-warning{{format specifies type 'unsigned __int32' (aka 'unsigned int') but the argument has type 'unsigned long long'}}
35 }
36 
w_test(wchar_t c,wchar_t * s)37 void w_test(wchar_t c, wchar_t *s) {
38   printf("%wc", c);
39   printf("%wC", c);
40   printf("%C", c);
41   printf("%ws", s);
42   printf("%wS", s);
43   printf("%S", s);
44   scanf("%wc", &c);
45   scanf("%wC", &c);
46   scanf("%C", &c);
47   scanf("%ws", s);
48   scanf("%wS", s);
49   scanf("%S", s);
50 
51   double bad;
52   printf("%wc", bad); // expected-warning{{format specifies type 'wint_t' (aka 'int') but the argument has type 'double'}}
53   printf("%wC", bad); // expected-warning{{format specifies type 'wchar_t' (aka 'unsigned short') but the argument has type 'double'}}
54   printf("%C", bad); // expected-warning{{format specifies type 'wchar_t' (aka 'unsigned short') but the argument has type 'double'}}
55   printf("%ws", bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double'}}
56   printf("%wS", bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double'}}
57   printf("%S", bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double'}}
58   scanf("%wc", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
59   scanf("%wC", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
60   scanf("%C", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
61   scanf("%ws", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
62   scanf("%wS", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
63   scanf("%S", &bad); // expected-warning{{format specifies type 'wchar_t *' (aka 'unsigned short *') but the argument has type 'double *'}}
64 
65 }
66 
h_test(char c,char * s)67 void h_test(char c, char* s) {
68   double bad;
69   printf("%hc", bad); // expected-warning{{format specifies type 'int' but the argument has type 'double'}}
70   printf("%hC", bad); // expected-warning{{format specifies type 'int' but the argument has type 'double'}}
71   printf("%hs", bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double'}}
72   printf("%hS", bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double'}}
73   scanf("%hc", &bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double *'}}
74   scanf("%hC", &bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double *'}}
75   scanf("%hs", &bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double *'}}
76   scanf("%hS", &bad); // expected-warning{{format specifies type 'char *' but the argument has type 'double *'}}
77 }
78 
z_test(void * p)79 void z_test(void *p) {
80   printf("%Z", p);
81   printf("%hZ", p);
82   printf("%lZ", p);
83   printf("%wZ", p);
84   printf("%hhZ", p); // expected-warning{{length modifier 'hh' results in undefined behavior or no effect with 'Z' conversion specifier}}
85   scanf("%Z", p); // expected-warning{{invalid conversion specifier 'Z'}}
86 }
87 
88 #endif
89