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      1 // RUN: %clang_cc1 %s -fsyntax-only -verify -fms-extensions
      2 
      3 // rdar://6495941
      4 
      5 #define FOO 1
      6 #define BAR "2"
      7 
      8 #pragma comment(linker,"foo=" FOO) // expected-error {{pragma comment requires parenthesized identifier and optional string}}
      9 #pragma comment(linker," bar=" BAR)
     10 
     11 #pragma comment( user, "Compiled on " __DATE__ " at " __TIME__ )
     12 
     13 #pragma comment(foo)    // expected-error {{unknown kind of pragma comment}}
     14 #pragma comment(compiler,)     // expected-error {{expected string literal in pragma comment}}
     15 #define foo compiler
     16 #pragma comment(foo)   // macro expand kind.
     17 #pragma comment(foo) x // expected-error {{pragma comment requires}}
     18 
     19 #pragma comment(user, "foo\abar\nbaz\tsome	thing")
     20 
     21 #pragma detect_mismatch("test", "1")
     22 #pragma detect_mismatch()  // expected-error {{expected string literal in pragma detect_mismatch}}
     23 #pragma detect_mismatch("test") // expected-error {{pragma detect_mismatch is malformed; it requires two comma-separated string literals}}
     24 #pragma detect_mismatch("test", 1) // expected-error {{expected string literal in pragma detect_mismatch}}
     25 #pragma detect_mismatch("test", BAR)
     26 
     27 // __pragma
     28 
     29 __pragma(comment(linker," bar=" BAR))
     30 
     31 #define MACRO_WITH__PRAGMA { \
     32   __pragma(warning(push)); \
     33   __pragma(warning(disable: 10000)); \
     34   1 + (2 > 3) ? 4 : 5; \
     35   __pragma(warning(pop)); \
     36 }
     37 
     38 void f()
     39 {
     40   __pragma()
     41 
     42   // If we ever actually *support* __pragma(warning(disable: x)),
     43   // this warning should go away.
     44   MACRO_WITH__PRAGMA // expected-warning {{lower precedence}} \
     45                      // expected-note 2 {{place parentheses}}
     46 }
     47 
     48 
     49 // This should include macro_arg_directive even though the include
     50 // is looking for test.h  This allows us to assign to "n"
     51 #pragma include_alias("test.h", "macro_arg_directive.h" )
     52 #include "test.h"
     53 void test( void ) {
     54   n = 12;
     55 }
     56 
     57 #pragma include_alias(<bar.h>, "bar.h") // expected-warning {{angle-bracketed include <bar.h> cannot be aliased to double-quoted include "bar.h"}}
     58 #pragma include_alias("foo.h", <bar.h>) // expected-warning {{double-quoted include "foo.h" cannot be aliased to angle-bracketed include <bar.h>}}
     59 #pragma include_alias("test.h") // expected-warning {{pragma include_alias expected ','}}
     60 
     61 // Make sure that the names match exactly for a replacement, including path information.  If
     62 // this were to fail, we would get a file not found error
     63 #pragma include_alias(".\pp-record.h", "does_not_exist.h")
     64 #include "pp-record.h"
     65 
     66 #pragma include_alias(12) // expected-warning {{pragma include_alias expected include filename}}
     67 
     68 // It's expected that we can map "bar" and <bar> separately
     69 #define test
     70 // We can't actually look up stdio.h because we're using cc1 without header paths, but this will ensure
     71 // that we get the right bar.h, because the "bar.h" will undef test for us, where <bar.h> won't
     72 #pragma include_alias(<bar.h>, <stdio.h>)
     73 #pragma include_alias("bar.h", "pr2086.h")  // This should #undef test
     74 
     75 #include "bar.h"
     76 #if defined(test)
     77 // This should not warn because test should not be defined
     78 #pragma include_alias("test.h")
     79 #endif
     80 
     81 // Test to make sure there are no use-after-free problems
     82 #define B "pp-record.h"
     83 #pragma include_alias("quux.h", B)
     84 void g() {}
     85 #include "quux.h"
     86 
     87 // Make sure that empty includes don't work
     88 #pragma include_alias("", "foo.h")  // expected-error {{empty filename}}
     89 #pragma include_alias(<foo.h>, <>)  // expected-error {{empty filename}}
     90 
     91 // Test that we ignore pragma warning.
     92 #pragma warning(push)
     93 #pragma warning(push, 1)
     94 #pragma warning(disable : 4705)
     95 #pragma warning(disable : 123 456 789 ; error : 321)
     96 #pragma warning(once : 321)
     97 #pragma warning(suppress : 321)
     98 #pragma warning(default : 321)
     99 #pragma warning(pop)
    100 
    101 #pragma warning(push, 0)
    102 // FIXME: We could probably support pushing warning level 0.
    103 #pragma warning(pop)
    104 
    105 #pragma warning  // expected-warning {{expected '('}}
    106 #pragma warning(   // expected-warning {{expected 'push', 'pop', 'default', 'disable', 'error', 'once', 'suppress', 1, 2, 3, or 4}}
    107 #pragma warning()   // expected-warning {{expected 'push', 'pop', 'default', 'disable', 'error', 'once', 'suppress', 1, 2, 3, or 4}}
    108 #pragma warning(push 4)  // expected-warning {{expected ')'}}
    109 #pragma warning(push  // expected-warning {{expected ')'}}
    110 #pragma warning(push, 5)  // expected-warning {{requires a level between 0 and 4}}
    111 #pragma warning(pop, 1)  // expected-warning {{expected ')'}}
    112 #pragma warning(push, 1) asdf // expected-warning {{extra tokens at end of #pragma warning directive}}
    113 #pragma warning(disable 4705) // expected-warning {{expected ':'}}
    114 #pragma warning(disable : 0) // expected-warning {{expected a warning number}}
    115 #pragma warning(default 321) // expected-warning {{expected ':'}}
    116 #pragma warning(asdf : 321) // expected-warning {{expected 'push', 'pop'}}
    117 #pragma warning(push, -1) // expected-warning {{requires a level between 0 and 4}}
    118