Jelly Bean MR1  |  4.2.2_r1
C++程序  |  11行  |  155 B 

// RUN: %clang_cc1 -E %s 2>&1 | not grep "warning\|error"

#if 0

// Shouldn't get warnings here.
??( ??)

// Should not get an error here.
` ` ` `
#endif