llvm-project/clang/test/Sema/transparent-union-pointer.c

// RUN: %clang_cc1 %s -fsyntax-only -verify
// expected-no-diagnostics

typedef union   {
  union wait *__uptr;
  int *__iptr;
} __WAIT_STATUS __attribute__ ((__transparent_union__));

extern int wait (__WAIT_STATUS __stat_loc);

void fastcgi_cleanup(void) {
  int status = 0;
  wait(&status);
}
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446 2009-12-15 20:14:24 +00:00			`// RUN: %clang_cc1 %s -fsyntax-only -verify`
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. llvm-svn: 166280 2012-10-19 12:44:48 +00:00			`// expected-no-diagnostics`
An extremely hacky version of transparent_union support; it isn't anywhere near correct in terms of missing cases and missing diagnostics, but it's good enough to handle the uses in the Linux system headers, which are currently a constant pain for compiling applications on Linux. llvm-svn: 55621 2008-09-02 05:19:23 +00:00
			`typedef union {`
Remove tabs, and whitespace cleanups. llvm-svn: 81346 2009-09-09 15:08:12 +00:00			`union wait *__uptr;`
			`int *__iptr;`
An extremely hacky version of transparent_union support; it isn't anywhere near correct in terms of missing cases and missing diagnostics, but it's good enough to handle the uses in the Linux system headers, which are currently a constant pain for compiling applications on Linux. llvm-svn: 55621 2008-09-02 05:19:23 +00:00			`} __WAIT_STATUS __attribute__ ((__transparent_union__));`

			`extern int wait (__WAIT_STATUS __stat_loc);`

Use functions with prototypes when appropriate; NFC A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the third batch of tests being updated (there are a significant number of other tests left to be updated). 2022-02-07 09:24:09 -05:00			`void fastcgi_cleanup(void) {`
Remove tabs, and whitespace cleanups. llvm-svn: 81346 2009-09-09 15:08:12 +00:00			`int status = 0;`
			`wait(&status);`
An extremely hacky version of transparent_union support; it isn't anywhere near correct in terms of missing cases and missing diagnostics, but it's good enough to handle the uses in the Linux system headers, which are currently a constant pain for compiling applications on Linux. llvm-svn: 55621 2008-09-02 05:19:23 +00:00			`}`