Reading strings in C

Question

If I was using C gets(), and I was reading a string from the user, but I have no idea how big of a buffer I need, and the input could be very large. Is there a way I can det

Answer 1

Don't use gets(). Use fgets(), and over approximate how much buffer space you will need.

The advantage of fgets is that if you go over, it will only write that max number of characters, and it won't clobber the memory of another part of your program.

char buff[100];
fgets(buff,100,stdin);

will only read up to 99 characters or until it hits a `'\n'. If there's room, it will read the newline into the array.