hanchenye-llvm-project/clang/test/Preprocessor/macro_expand.c

// RUN: %clang_cc1 -E %s | grep '^A: Y$'
// RUN: %clang_cc1 -E %s | grep '^B: f()$'
// RUN: %clang_cc1 -E %s | grep '^C: for()$'

#define X() Y
#define Y() X

A: X()()()

// PR3927
#define f(x) h(x
#define for(x) h(x
#define h(x) x()
B: f(f))
C: for(for))

// rdar://6880648
#define f(x,y...) y
f()
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 \| grep '^A: Y$'`
			`// RUN: %clang_cc1 -E %s \| grep '^B: f()$'`
			`// RUN: %clang_cc1 -E %s \| grep '^C: for()$'`
new testcase llvm-svn: 38953 2006-10-06 10:59:40 +08:00
			`#define X() Y`
			`#define Y() X`

fix PR3927 by being more careful about the pp test for identifier. llvm-svn: 69423 2009-04-18 14:44:18 +08:00			`A: X()()()`

			`// PR3927`
			`#define f(x) h(x`
			`#define for(x) h(x`
			`#define h(x) x()`
			`B: f(f))`
			`C: for(for))`
new testcase llvm-svn: 38953 2006-10-06 10:59:40 +08:00
When we expect two arguments but have zero, make sure to add two empty arguments. Also, add an assert so that this bug manifests as an assertion failure, not a valgrind problem. This fixes rdar://6880648 - [cpp] crash in ArgNeedsPreexpansion llvm-svn: 71616 2009-05-13 08:55:26 +08:00			`// rdar://6880648`
			`#define f(x,y...) y`
			`f()`