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Why special character (quotes " ) can be declare that char c = '"'
By shuneo, history, 23 months ago, In English 
char c = '"';
// it is compiled and successed.

I have a question that: why we can char c = '"'; instead of using char c = '\"'.

I used to think that char c = '"' is wrong before.

Thank you alot

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23 months ago, # |
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Because standard says so. And it always was that way.

https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/n4713.pdf (Section 5.3.13)

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23 months ago, # |
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We don't need to escape the character " when we put it between '. The reason is just the compiler will understand it and there is no need for \.

But when we put it between " we need to escape it because if we don't it will be marked as the end of the string.

// syntax error
"abcabcabc"defdefdef"
^         ^
start    end
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