In C and C++ (and several other languages) horizontal tabulators (ASCII code 9) in character and string constants are denoted in escaped form as '\t' and "\t". However, I am regularly typing the unescaped tabulator character in string literals as for example in "A B" (there is a TAB in betreen A and B), and at least clang++ does not seem to bother - the string seems to be equivalent to "A\tB". I like the unescaped version better since long indented multi-line strings are better readable in the source code.
现在我在问自己，这在C和C++中通常是合法的，还是只是我的编译器支持的.未转义的制表器在字符和字符串常量中的可移植性如何？
令人惊讶的是，我找不到这个看似简单的问题的答案，既没有谷歌，也没有Stackoverflow(我只找到了this个模糊相关的问题).