Timeline for C: Vigenere code terminates before enciphering

5 events

when toggle format	what		by	license	comment
Mar 18, 2017 at 10:41	comment	added	Android1		That's what I had originally. It compiles but it doesn't pass check50 checks because it doesn't check the whole length of the keyword at argv. When I run the checks I then get the Hax0r2 error which says it is supposed to exit because there are numbers in the key. I just also tried adding another 'if' statement underneath to iterate through argv after declaring it a key to check if each character isalpha before returning 1 but it rejected that too. Very frustrating. :-{ That one also compiled but failed check50.
Mar 18, 2017 at 10:40	comment	added	Steve Bunting		You are checking whether the length of argv[1] (a number) is alphabetic rather than whether argv[1] (a string) is alphabetic. In order to do this in C, you have to loop over each char in argv[1] and use the function `isalpha()` on each one.
Mar 18, 2017 at 9:02	vote	accept	Android1
Mar 18, 2017 at 9:02	comment	added	Android1		It won't compile if the 1 is removed or replaced with anything else. If I leave the [] empty or remove them it throws an error when I try to compile. When I run check50 it checks if argv is alpha. That particular check works when the code is as it is there, otherwise that throws an error on check50. If I replaced the 1 with an i it threw an undeclared identifier error. Not sure how else to approach that.
Mar 18, 2017 at 6:34	history	answered	Steve Bunting	CC BY-SA 3.0