Code:// Converts plain text to cipher text for (int l = 0, o = strlen(s); l < o; l++) { if (islower(s[l])) { int m = (l % strlen(argv[1])); char c = ((s[l] + shift(argv[1][m]) - 97) % 26 + 97); printf("%c", c); m++; } else if (isupper(s[l])) { int m = (l % strlen(argv[1])); char c = (s[l] + shift(argv[1][m]) - 65) % 26 + 65; printf("%c", c); m++; } else { char c = s[l]; printf("%c", s[l]); }
You've got a very bad case of single letter identifier disease.
Eye watering alphabet soup is incredibly hard to follow because it has NO meaning.
What's in s?
What's in argv[1]?
What does shift() do?
Post a complete program we can run.
With something like this, we can just copy/paste/run with ZERO guesswork on our part.Code:int main ( ) { char *s = "...."; // something, anything, it's just an example char *key = "key"; // What would be in argv[1] /// any other setup // your code }
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
Interesting...
"without goto we would be wtf'd"
