Reading string by char till end of line C/C++

You want to use single quotes:

if(c=='\0')

Double quotes (“) are for strings, which are sequences of characters. Single quotes (‘) are for individual characters.

However, the end-of-line is represented by the newline character, which is ‘\n’.

Note that in both cases, the backslash is not part of the character, but just a way you represent special characters. Using backslashes you can represent various unprintable characters and also characters which would otherwise confuse the compiler.

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