hanchenye-llvm-project/clang/test/Preprocessor/c99-6_10_3_3_p4.c

// RUN: %clang_cc1 -E %s | FileCheck -strict-whitespace %s

#define hash_hash # ## # 
#define mkstr(a) # a 
#define in_between(a) mkstr(a) 
#define join(c, d) in_between(c hash_hash d) 
char p[] = join(x, y);

// CHECK: char p[] = "x ## y";
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 2009-12-16 04:14:24 +08:00			`// RUN: %clang_cc1 -E %s \| FileCheck -strict-whitespace %s`
Preprocessor tests are whitespace sensitive, as per Revision: 85170 review. llvm-svn: 85194 2009-10-27 09:45:51 +08:00
new testcase llvm-svn: 38792 2006-07-29 15:19:41 +08:00			`#define hash_hash # ## #`
			`#define mkstr(a) # a`
			`#define in_between(a) mkstr(a)`
			`#define join(c, d) in_between(c hash_hash d)`
			`char p[] = join(x, y);`
Convert a few tests to FileCheck for PR5307. llvm-svn: 85170 2009-10-27 06:51:02 +08:00
			`// CHECK: char p[] = "x ## y";`