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I was wondering if you could help me as I am new to c++
I need to validate a postcode using the following functions
1. Write a function called isValidPostcode:
Prototype: bool isValidPostcode(char postcode[])
Parameter: character string (postcode).
Return value: returns true if the postcode is valid, false otherwise.
Functionality: works out whether the given postcode is valid or invalid.
I don't know where to begin! please help me asap and I will be forever grateful
thanks
The first place to begin is to lay out the rules, in english, of what a valid postcode is. For example, in the US, a 5 digit number is a valid postcode, as is the 5-4 format. Once you have the rules, you can implement the checking for those rules in code.
Okey I have set out the rules. Its a british postcode so it goes AAN NAA. Any more tips on where to go now? Any help at all is welcome. Thanks
Does A stand for any alphabetic character? Does N stand for any numeric character?
How would you validate the postcode in real life? Write out the steps. For example, here is how I would validate an American zip code that takes the format NNNNN-NNNN:
1. Check the length of the string, it must be 10 characters. If not - invalid.
2. For each character in the string:
2a. If it is the 6th character in the string (index #5), it must be the '-' character. If not - invalid.
2b. Otherwise if it is not the 6th character, it must be a numeric character. If not - invalid.
3. If the first 2 checks succeed, the zip code is valid.
If you can do that for your post code, it is real close to actual code.