Entering a SPACE

i am trying to get my program to read a SPACE, so i can validate a postcode. this is the code below but wont read the space properly.

can anyone help?

Code:

---


bool isValidPostcode(char postcode[])
{
 int errorcounter = 0;
 int spaceCheck = 0;

        if(isalpha(post1[0]))

        {
        cout << "this is correct" <<endl;
        }
        else
        {
        cout << "this is incorrect"<<endl;
        errorcounter++;
        }

        if(isalpha(post1[1]))
        {
        cout << "this is correct"<<endl;
        }
        else
        {
        cout << "this is incorrect"<<endl;
        errorcounter++;
        }
        if(isdigit(post1[2]))
        {
        cout << "this is correct"<<endl;
        }
        else
        {
        cout << "this is incorrect"<<endl;
        errorcounter++;
        }

        spaceCheck = ((int)post1[3]);
        spaceCheck = 0;

        if (spaceCheck == 32)
        {
        cout <<"this is correct" <<endl;
        }
        else
        {
        cout <<"this is incorrect" <<endl;
        errorcounter++;
        }

        // no space so check remainding 3 chars
        if (isdigit(post1[4]))

        {
        cout << "this is correct" <<endl;
        }
        else
        {
        cout << "this is correct"<<endl;
        errorcounter++;
        }

        if (isalpha(post1[5]))

        {
        cout << "this is incorrect" <<endl;
        }
        else
        {
        cout << "this is correct" <<endl;
        errorcounter++;
        }

        if (isalpha(post1[6]))
        {
        cout << "this is incorrect"  <<endl;
        }
        else
        {
        cout << "this is correct"  <<endl;
        errorcounter++;
        }
        if (errorcounter ==0)
        {
        cout << "the post code it VALID";
        return true;

        }
        else
        {
        cout <<"the postcode is INVALID please enter in again";
        return false;

---

Code:

---

spaceCheck = ((int)post1[3]);
spaceCheck = 0;

if (spaceCheck == 32)
{
  cout <<"this is correct" <<endl;
}

---

first things first: here you first assign spaceCheck to be the integer value of what is stored in post1[3]. After that you assign spaceCheck to be 0, and thus the following if will always be false.

Second, how do you know that a space always has the value 32? That will not always be the case.

A better way to do it would be

Code:

---

if (post1[3] == ' ')
{
  cout <<"this is correct" <<endl;
}

---

Here I test whatever you have in post1[3] to see if it is a space. This is not dependant on what computer you run this on.

i have done that mate and the proram seems to go mad and mess up :(

you know the reason for this?

Thanks

Now when i take a second look at your code I see something fishy. All the time when you check everything you use post1, but the variable you pass to the function is postcode...

Does that really matter?

how would i know? I dont know what the rest of the code looks like.