Escape character in C

Question

So I want to check if someone enters: \\n (\'\\\' and then \'n\') from the keyboard to a string, so I\'m doing something like this:

Answer 1

you use another \

    if ( str[i] == '\\' && str[i+1] == 'n');

Answer 2

The escape sequence for an actual backslash is \\, e.g.

char c = getchar();
if(c == '\\')
    ... stuff ...

Answer 3

Instead of escape characters you can use the ASCII values like this

  if ((str[i] == 92) && (str[i+1] == 'n'))
        ;

Answer 4

You have to escape \ by doubling it:

if ( ((str[i] == '\\') && (str[i+1] == 'n')) ){
}

Answer 5

compare the \ like this. if ((str[i] == '\\') && (str[i+1] == 'n'))

because we have to escape the escape sequence \.

Answer 6

if user enter like \ and n using keyboard .

then try like this

 if(str[i] == '\\' && str[i+1] == 'n')

As \ is represented by \\, so use \\ instead of \ to check.