On line 42 I have int I declared but I have an error message that said I did:
vigenere.c:32:22: error: use of undeclared identifier 'i' int k = argv[i]
What's happening here?
1 Answer
Yes, you have it declared on line 42, but the error occurs on line 32, 10 lines earlier. A variable MUST be declared before it can be used.
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