POSIX ERE says that escaping an ordinary char, say R"\n" is not permitted, because 'n' is not a special char. However, they also say that : "Implementations are permitted to extend the language to allow these. Conforming applications cannot use such constructs."
So let's support it not to make users surprised. Booted and tested under -m32 and -m64 Thanks! -- Tim Shen
a.patch
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