Phone Number List issues

[solemnservant]

Ok, So technically this program works. My problem is my error message is also displayed when I print the information. Can someone help me figure out how to prevent this from happening?

/*****************************************
Phone Number List
******************************************/

# include <iostream>		// i/o stream header
# include <cstring>			// header file needed to use strstr function
using namespace std;

/******************
Function Main
******************/
int main ()
{
	const int num = 11;		// num holds 11 contacts
	const int length = 100;		// Maximum allowable charactersfor each line is 100

	//  Array contacts[][] holds 11 contacts with phone numbers
	char contacts[num][length] = {   "Becky Warren, 555-1223", 
									 "Joe Looney, 555-0097",
									 "Geri Palmer, 555-8787", 
									 "Lynn Presnell, 555-1212",
									 "Holly Gaddis, 555-8878", 
									 "Sam Wiggins, 555-0998",
									 "Bob Kain, 555-8712", 
									 "Tim Haynes, 555-7676",
									 "Warren Gaddis, 555-9037", 
									 "Jean James, 555-4949",
									 "Ron Palmer, 555-2783"};

	char search[length];		//Array search[] holds user's input
								//and searches inside the array contacts[][]
	char *IdContact = NULL;		// IdContact points to the user's query inside array contacts[][]
	int index;		// loop counter
	
	//Prompts user to search for contacts
	cout << "To search for your contact's number please enter a name or partial name of the person.\n";
	cin.getline(search, length);		//user's input
	
	//Searches array for matching substring
	for (index = 0; index < num; index++)
	{
		IdContact = strstr(contacts[index], search);
			if (IdContact != NULL)
			{
				cout << contacts[index];		//prints all possible contacts with in the string
				
			}
			
	}

	//if no matches are found, display error message;
	if (IdContact == NULL)
				cout << "Sorry, No matches were found!";
	return 0;
}

[greenleaf800073]

Here you go

Basically, when search reached end, IdContact was Null again. So you have to tell the program that we already found matches. I put

bool found = false;

When you find a match, found = true.

if(!found) // if found == false
{
cout << "No matches!" << endl;
}

/*****************************************
Phone Number List
******************************************/

# include <iostream>		// i/o stream header
# include <cstring>			// header file needed to use strstr function
using namespace std;

/******************
Function Main
******************/
int main ()
{
    bool found = false;
	const int num = 11;		// num holds 11 contacts
	const int length = 100;		// Maximum allowable charactersfor each line is 100

	//  Array contacts[][] holds 11 contacts with phone numbers
	char contacts[num][length] = {   "Becky Warren, 555-1223",
									 "Joe Looney, 555-0097",
									 "Geri Palmer, 555-8787",
									 "Lynn Presnell, 555-1212",
									 "Holly Gaddis, 555-8878",
									 "Sam Wiggins, 555-0998",
									 "Bob Kain, 555-8712",
									 "Tim Haynes, 555-7676",
									 "Warren Gaddis, 555-9037",
									 "Jean James, 555-4949",
									 "Ron Palmer, 555-2783"};

	char search[length];		//Array search[] holds user's input
								//and searches inside the array contacts[][]
	char *IdContact = NULL;		// IdContact points to the user's query inside array contacts[][]
	int index;		// loop counter

	//Prompts user to search for contacts
	cout << "To search for your contact's number \nplease enter a name or partial name of the person.\n";
	cin.getline(search, length);		//user's input

	//Searches array for matching substring
	for (index = 0; index < num; index++)
	{
		IdContact = strstr(contacts[index], search);
        if (IdContact != NULL)
        {
            cout << contacts[index] << endl;		//prints all possible contacts with in the string
            found = true;
        }
	}
	//if no matches are found, display error message;
	if (!found) cout << "Sorry, No matches were found!";

	return 0;
}

[solemnservant]

Yep! That fix it alright! Thank you very much! I find I under use the bool data types. You definitely need it for this problem. Can you explain why the other way did not work for the error message?

[greenleaf800073]

Well, ex. It finds matches but there is nothing to tell the program that it did find some matches so that is why I put in bool found. In the original program, the program just continued on, you could just put an else after but in this case, you didn't.