C Programming on the Mac L29 - Comparing strings

How to compare strings in C. //Note: strcmp returns either a -1, 0, or 1. Strncmp should also be used for buffer overflow purposes however it is not that crucial. http://en.wikipedia.org/wiki/Strcmp

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[RMH1565]

Why can't I just compare with "exit\0" and leave the input string as it is?

[AppleProgramming]

@RMH1565 Well you would be comparing "exit\n" because we are replacing that with the NULL character \0. \0 doesn't appear as a character so we just compare "exit".

[AwesomeChannel476]

when is the \n actually written to get rid of? is that when we hit the enter key?

[AppleProgramming]

@AwesomeChannel476 Yep, fgets will tack on the \n when you hit the return key.

[deepak10066]

In the function RepalceReturn(char *myString) why you used '*' for character?

[AppleProgramming]

@deepak10066 A char* is any kind of string. So it just means you are passing in a C string.

[AppleProgramming]

@unifiedreality I think it is just some weird thing Xcode does. When you #include any of the header files it autofills anyone of them. If you #include string.h it will fill in string like it does with stdio. It is only meant to be a file pointer.

[unifiedreality]

just wondering, when we use 'fgets', we often feed input via 'stdin' or a file pointer. Whats the 'stdio' that we sometimes see with typing assistance?