83 lines
3.7 KiB
C
83 lines
3.7 KiB
C
//RUN: %clang_cc1 -fsyntax-only -verify %s
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#include <stdarg.h>
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void a(const char *a, ...) __attribute__((format(printf, 1,2))); // no-error
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void b(const char *a, ...) __attribute__((format(printf, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}}
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void c(const char *a, ...) __attribute__((format(printf, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}}
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void d(const char *a, int c) __attribute__((format(printf, 1,2))); // expected-error {{format attribute requires variadic function}}
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void e(char *str, int c, ...) __attribute__((format(printf, 2,3))); // expected-error {{format argument not a string type}}
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typedef const char* xpto;
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void f(xpto c, va_list list) __attribute__((format(printf, 1, 0))); // no-error
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void g(xpto c) __attribute__((format(printf, 1, 0))); // no-error
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void y(char *str) __attribute__((format(strftime, 1,0))); // no-error
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void z(char *str, int c, ...) __attribute__((format(strftime, 1,2))); // expected-error {{strftime format attribute requires 3rd parameter to be 0}}
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int (*f_ptr)(char*,...) __attribute__((format(printf, 1,2))); // no-error
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int (*f2_ptr)(double,...) __attribute__((format(printf, 1, 2))); // expected-error {{format argument not a string type}}
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struct _mystruct {
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int (*printf)(const char *format, ...) __attribute__((__format__(printf, 1, 2))); // no-error
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int (*printf2)(double format, ...) __attribute__((__format__(printf, 1, 2))); // expected-error {{format argument not a string type}}
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};
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typedef int (*f3_ptr)(char*,...) __attribute__((format(printf,1,0))); // no-error
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// <rdar://problem/6623513>
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int rdar6623513(void *, const char*, const char*, ...)
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__attribute__ ((format (printf, 3, 0)));
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int rdar6623513_aux(int len, const char* s) {
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rdar6623513(0, "hello", "%.*s", len, s);
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}
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// same as format(printf(...))...
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void a2(const char *a, ...) __attribute__((format(printf0, 1,2))); // no-error
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void b2(const char *a, ...) __attribute__((format(printf0, 1,1))); // expected-error {{'format' attribute parameter 3 is out of bounds}}
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void c2(const char *a, ...) __attribute__((format(printf0, 0,2))); // expected-error {{'format' attribute parameter 2 is out of bounds}}
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void d2(const char *a, int c) __attribute__((format(printf0, 1,2))); // expected-error {{format attribute requires variadic function}}
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void e2(char *str, int c, ...) __attribute__((format(printf0, 2,3))); // expected-error {{format argument not a string type}}
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// FreeBSD usage
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#define __printf0like(fmt,va) __attribute__((__format__(__printf0__,fmt,va)))
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void null(int i, const char *a, ...) __printf0like(2,0); // no-error
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void null(int i, const char *a, ...) { // expected-note{{passing argument to parameter 'a' here}}
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if (a)
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(void)0/* vprintf(...) would go here */;
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}
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void callnull(void){
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null(0, 0); // no error
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null(0, (char*)0); // no error
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null(0, (void*)0); // no error
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null(0, (int*)0); // expected-warning {{incompatible pointer types}}
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}
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// PR4470
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int xx_vprintf(const char *, va_list);
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const char *foo(const char *format) __attribute__((format_arg(1)));
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void __attribute__((format(printf, 1, 0)))
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foo2(const char *fmt, va_list va) {
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xx_vprintf(foo(fmt), va);
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}
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// PR6542
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extern void gcc_format (const char *, ...)
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__attribute__ ((__format__(__gcc_diag__, 1, 2)));
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extern void gcc_cformat (const char *, ...)
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__attribute__ ((__format__(__gcc_cdiag__, 1, 2)));
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extern void gcc_cxxformat (const char *, ...)
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__attribute__ ((__format__(__gcc_cxxdiag__, 1, 2)));
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extern void gcc_tformat (const char *, ...)
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__attribute__ ((__format__(__gcc_tdiag__, 1, 2)));
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const char *foo3(const char *format) __attribute__((format_arg("foo"))); // expected-error{{'format_arg' attribute requires parameter 1 to be an integer constant}}
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