Arrays of Strings are fun

Okay, I have 2 functions I am trying to create. The first, will read in a character string array of numbers and insert dashes into it(like in a social security number or a phone number).

The second one will read in a string of characters in an array and cut-off one of the names by inserting the delimiter('\0')

However, I am having problems doing both. Any suggestions would be great.

Code:

---

void dashinsert(str x[])
{
for(int i=0;i<23;i++)
{for(int j=0;j<9;j++)
cout << x[j] << endl;
}

cout << x[4];

}

void cutoff(str x[])
{
//read-in array
        //go through and insert '/0' after the first letter of middle name


}

---

I don't really understand your problem...

the code you give isn't useful and your explanations aren't very clear. What is str ? why don't you use string ? they provide several functions to help you

Your code should probably look like "char str[]" or "char x[]"

Inserting a null to "end" the string...

First, use a loop to search for a space. x[n] == ' ';

Code:

---

char x[] = DougDbug;
x[4] = '/0';    // Replace the second 'D' with '\0' So that "Doug" will print-out.

---

Inserting hyphens...

First, you have to shift-right all the characters right of the hyphen.

So, again in a loop (starting at the end and working backwards).

Code:

---

ssn[4] = ssn[3];  // Move the character in position 3, to position 4
ssn[3] = '-' ;        // Overwrite position 3 (4th character) with a hyphen.

---

[EDIT]
BTW - What you are working with is a "character array" or "c-style string". An example of an "array of strings" would be a an array of sentances, which the computer would see as a two-dimensional array. Or, "an array of character-arrays".

thanks for your help, I'll give it a shot

First, get the '\0' program working on your name without a loop, and without looking for the space.

Once that works, add the loop with the space-search.


For the hyphen, start by shifting the last character (no loop).
123456789 // Input
1234567899 // Output (shift last character)

Once, you have that working, make a loop to do this:
123456789 // Input
1234566789 // Output (shift last 4 characters)

Then:
123456789 // Input
12344566789 // Output

Finally, over-write the characters where the hyphens belong.
123456789 // Input
123-45-6789 // Output

Okay, I tried some things but I am still having problems. the only function I have enabled is the dashinsert one and its spitting out garbage numbers. Do I need to change the ss[] array to a char array and what I have? When I dothat it gives me an error. Here is my code:

Code:

---

#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>

//Global variables
ifstream infile;
ofstream outfile;

typedef char str[30];

//function prototypes
void tocaps(str []);
void dashinsert(char []);
void cutoff(str []);

int main()
{

char ss[30],ph[30];
str name[30];


        infile.open("in599A.dat");
        while(!infile.eof())
        {
                for(int i=0;i<23;i++)
                {
                infile >> ss[i];
                infile >> ph[i];
                infile.getline(name[i],30);
                }
               
                //cout << ss[i] << endl << ph[i] << endl;
                //cout << name[i] << endl;}
               
               
                //change to caps
                    //tocaps(name);
                    //cout << "after caps function" << endl;
                      //for(i=0;i<23;i++)
                      //cout << name[i] << endl;
                //take off the last characters of middle name

                      //cutoff(name);
                //compare to second file

                //add dashes to social security number and add dashes to phone number
                    dashinsert(ss);  // social security dash insertion
                    //dashinsert(ph);  // phone number dash insertion
                //sort
                         
                //binary search

        }       
        return 0;
}
// to conversion to capital letters
void tocaps(str name[])
{
        for(int r=0;r<23;r++)
                {
                        for (int c=0;c<strlen(name[r]);c++) {
    name[r][c] = toupper( name[r][c] );
                }
               
}

}

void dashinsert(char x[])
{
//for(int i=0;i<23;i++)
//{for(int j=0;j<9;j++)

x[12] = x[8];
x[3] = '-' ;
for(int i=0;i<23;i++)
cout << x[i] ;   
}

void cutoff(str x[])
{
//read-in array
        //go through and insert '/0' after the first letter of middle name
//look for first space then look for another space then add /o after

}

---

Your typedef is wrong. You want char*, not char.

Look, here's the same program using the standard string class:

Code:

---

void dashinsert(std::string& x) {
  x.insert(5,"-");
  x.insert(3,"-");
}

---

honeslty, I haven't learned the standard string class thing(x.insert(5,"-");) yet. My class just started on pointers... so, I'm a little new to it. Does it look like that is what I need to use?

yes, your program would be much simpler with string. If you can, learn it and use it

can't learn it, teacher won't let me

if you'd like to help out on my other problems please visit
http://cboard.cprogramming.com/showt...threadid=41423