clang/test/Sema/format-strings-ms.c

   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.
  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
  21 void signed_test(void) {
  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
  29 void unsigned_test(void) {
  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
  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 'unsigned short') 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
  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
  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