Enter and Break C++ for loop: minimum of 10 iterations AND no empty string

Question

I've written a program that I manly created for automated formatting for definitions. It may be pointless, but it was a challenge because I'm getting back into C++.

I have a loop that adds a list item every iteration; however, I want to make it so you have to have a minimum of 10 iterations AND szWord has to be empty to terminate the loop. Also, if it's possible to have a multi-line string, different than how I did it, then please post.

Here's the loop (I've tried with both a > and a < and I understand why both fail, but I'm not sure how to fix this):

for(int i =1; i<10 && szWord != ""; i++){
    cout <<"Word: ";
    getline(cin, szWord); //Get intended word(s)
    cout << "
 Definition: ";
    getline(cin, szDefinition); //get intended defintion
    szList_Item = "" + szWord + "- " + szDefinition + "";//Concates and makes HTML li tag
    ofstream Definition_HTML; //Ofstream Declaration
    Definition_HTML.open(szFile_Name, ios::app); //Adds to end of text to prevent rewriting; 

    Definition_HTML << szList_Item; //inserts szList_Item
    Definition_HTML.close(); //close
}

Entire Code:

#include  //cin, cout
#include 
#include 
#include 
#include 
#include 
#include  //getline(), string


using namespace std;
void HTML_Start(string); 
void HTML_End(string);

void HTML_Start(string Class, string Date, string File_Name, string Name, string Title){
    string szCSS = "";

    string szTitle = "" + Title + "";    ofstream Definition_HTML;
    Definition_HTML.open(File_Name, ios::app);
    Definition_HTML << "   "
        << szTitle
        << szCSS
        << " "
        << ""
        << "" + Name + "
" + Class + "
" + Date + ""
        << "" + Title + ""
        << "";
    Definition_HTML.close();

}

void HTML_End(string File_Name){
    ofstream Definition_HTML;
    Definition_HTML.open(File_Name, ios::app);
    Definition_HTML << "";
    Definition_HTML.close();

}

int main() {
    //Declare Variables
    string szClass = "";
    string szDate = "";
    string szDefinition = "";
    string szExtension = "Def.html";
    string szFile_Name = "Definitions.html";
    string szList_Item = "";
    string szName = "";
    string szTitle = "";
    string szWord = " ";

    //Start main function of program
    cout << "This is a program that automatically formats your definitions. 
 It then proceeds to create a web page for easy viewing."
        "Hopefully, at some point, it will automatically get the definition for you and create a quiz."
        "

";

    cout << "Name: ";
    getline(cin, szName); //Gets Name of User
    cout << "
" << "Class and Period: ";
    getline(cin, szClass); //Gets Class
    cout << "
"
        << "Press ENTER for today's date."
        << "
"
        << "Date: ";
    getline(cin, szDate); //Gets date user inserts
    if (szDate == "")
    {
        szDate = "this_is_today's_date_place_holder"; //If user hits enter, then display current date
    }
    else { szDate = szDate; //Not sure if 'else' is required, but if so, it sets Date to itself
    }

    cout <<  "
" << "Page Title: ";
    getline(cin, szTitle); // Gets the title and H4 of the page
    szFile_Name = szTitle + szExtension;
    HTML_Start(szClass, szDate, szFile_Name, szName, szTitle);  //set the name of file to the title and Def.html

    for(int i =1; i<10 && szWord != ""; i++){
        cout <<"Word: ";
        getline(cin, szWord); //Get intended word(s
        cout << "
 Definition: ";
        getline(cin, szDefinition); //get intended defintion
        szList_Item = "" + szWord + "- " + szDefinition + "";//Concates and makes HTML li tag
        ofstream Definition_HTML; //Ofstream Declaration
        Definition_HTML.open(szFile_Name, ios::app); //Not sure what ios::app does; Sets the name of file to szFile_Name
        Definition_HTML << szList_Item; //inserts szList_Item
        Definition_HTML.close(); //close
    }
    HTML_End(szFile_Name);
    return 0; 
}

woolstar · Accepted Answer

You want to write the logic of when you want the loop to go on:

either i<=10

or

szWord is not empty.

( i<=10 ) || ! szWord.empty()

This is classic boolean logic inversion. The opposite of ( ! A && ! B ) is ( A || B )

Enter and Break C++ for loop: minimum of 10 iterations AND no empty string

Answers (1)

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