I'm suppose to use this prototype : char **read_lines(FILE *fp) for a function. The function is should read all lines in a given file and store them in a NULL-terminated array of strings.
What is going on in the header for the function? and also what does this mean by an array of strings and how does that work out? Thanks for any help so I can get a better understanding on what I am to do.
an array of strings is a 2D array of chars. Thus a char**. This is what you are going to return back in main.
Code - functions and small libraries I use
It’s 2014 and I still use printf() for debugging.
"Programs must be written for people to read, and only incidentally for machines to execute. " —Harold Abelson
What do the two values correspond to then lines[x][y]?
If lines is the name of your array, then line[x][y], would be a char, a letter. line[x] would be a string.
Take a picture.
Code - functions and small libraries I use
It’s 2014 and I still use printf() for debugging.
"Programs must be written for people to read, and only incidentally for machines to execute. " —Harold Abelson
For each line read, malloc a chunk of memory big enough to hold the string. Save its address in another array that's also malloced. Return the address of that pointer array.
