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I recently got into C++ through my school. I was bored the other day and decided to make a simple Mad Libs program. I have one question though... How do I assign a variable to hold an entire word? Obviously in a Mad Libs program, the user inputs words and those words are plugged into a story for comical results.
And obviously declaring variables through char doesn't work because it only returns a single letter.
Any ideas?
Use the string class.Code:#include <iostream>
#include <string>
using namespace std;
int main()
{
string input;
cout << "Enter a word." << endl;
cin >> input;
cout << "You entered " << input << endl;
return 0;
}
Code:
#include <string>
string variable; // This will store unlimited amount of chars
getline(cin, variable); // To take input so ' ' spaces are also stored
I have #include <string> but it isn't recognizing string. The error I'm getting is...
error C2065: 'string' : undeclared identifier
Indeed. Welcome to namespaces.
You have a few options to choose from.
1) using namespace std;2) using std::string;Code:#include <iostream>
#include <string>
using namespace std;
...
3) Full qualification of namesCode:#include <iostream>
#include <string>
using std::string;
...
Code:#include <iostream>
#include <string>
int main()
{
std::string input;
...
return 0;
}
All three methods give me quite a few errors that look like...
error C2679: binary '>>' : no operator defined which takes a right-hand operand of type 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >'
<wildguess>
Don't use <iostream.h>. Use <iostream>.
</wildguess>
This episode of mind-reading was brought to you by the letter Q and the number 5. To prevent future attempts at mind-reading, post some code with your error messages.
Sorry, theres what I have.Code:// stupid libs
#include <string>
#include <iomanip.h>
#include <iostream>
int choice;
using std::string;
void intro()
{
cout<<" ------------Stupid Libs v1.0------------"<<endl<<endl;
system("pause");
cout<<" "<<endl;
cout<<"You will be prompted for various types of words, \ninput them or suffer a punch in your crappy face."<<endl<<endl;
system("pause");
cout<<" "<<endl;
cout<<"First... lets go over the basics, just incase you forgot that garbage already."<<endl;
}
void words()
{
cout<<" "<<endl;
system("pause");
cout<<" Parts of Speech"<<endl;
cout<<" "<<endl;
cout<<"Noun: A person, place or thing."<<endl;
cout<<" "<<endl<<endl;
cout<<"Proper Noun: A paticular thing, event, or a \nname of a person. Often capitalized."<<endl;
cout<<" "<<endl<<endl;
cout<<"Pronoun: Indicate the subject of the sentence, \nsuch as it, he, her, we or they."<<endl;
cout<<" "<<endl<<endl;
cout<<"Adjective: Describes or modifies a noun, often \nhas a suffixe such as -able, -ous, -er, or -est."<<endl;
cout<<" "<<endl<<endl;
cout<<"Verb: An action, such as run, jump or take."<<endl;
cout<<" "<<endl<<endl;
cout<<"Adverb: Describes or modifies a verb, such as \nvery, rapidly or unrelentlessly."<<endl;
cout<<"\n"<<endl;
system("pause");
}
void libchoice()
{
cout<<"\n\n\n\n\n\n\n\n\n"<<endl;
cout<<"Choose lib 1, 2 or 3."<<endl;
cout<<" "<<endl;
cout<<"Input lib choice now: ";
cout<<"\n\n\n\n\n\n\n\n\n\n"<<endl;
cin>>choice;
cout<<" "<<endl;
}
void liba()
{
string a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r;
cout<<"Adjective : ";
cin>>a;
cout<<""<<endl;
cout<<"Adjective : ";
cin>>b;
cout<<""<<endl;
cout<<"Adjective : ";
cin>>c;
cout<<""<<endl;
cout<<"Adjective : ";
cin>>d;
cout<<""<<endl;
cout<<"Liquid : ";
cin>>e;
cout<<""<<endl;
cout<<"Noun : ";
cin>>f;
cout<<""<<endl;
cout<<"Noun : ";
cin>>g;
cout<<""<<endl;
cout<<"Noun : ";
cin>>h;
cout<<""<<endl;
cout<<"Noun : ";
cin>>i;
cout<<""<<endl;
cout<<"Noun : ";
cin>>j;
cout<<""<<endl;
cout<<"Noun : ";
cin>>k;
cout<<""<<endl;
cout<<"Noun : ";
cin>>l;
cout<<""<<endl;
cout<<"Noun : ";
cin>>m;
cout<<""<<endl;
cout<<"Number : ";
cin>>n;
cout<<""<<endl;
cout<<"Plural Noun : ";
cin>>o;
cout<<""<<endl;
cout<<"Plural Noun : ";
cin>>p;
cout<<""<<endl;
cout<<"Plural Noun : ";
cin>>q;
cout<<""<<endl;
cout<<"Plural Noun : ";
cin>>r;
cout<<""<<endl;
system("pause");
cout<<""<<endl;
cout<<" Proverbs"<<endl;
cout<<"Too many "<<o<<" spoil the "<<e<<"."<<endl;
cout<<"People who live in "<<a<<" houses shouldn't throw "<<p<<"."<<endl;
cout<<"The shortest distance between two "<<q<<" is a straight "<<6<<"."<<endl;
cout<<"Love of "<<r<<" is the root of all evil."<<endl;
cout<<"A "<<b<<" stone gathers no "<<g<<"."<<endl;
cout<<"A "<<h<<" a day keeps the "<<i<<" away."<<endl;
cout<<"A "<<j<<" in time saves "<<n<<"."<<endl;
cout<<"You can't keep a "<<c<<" man down."<<endl;
cout<<"You can't teach a "<<d<<" "<<k<<" new tricks."<<endl;
cout<<"The way to a man's "<<l<<" is through his "<<m<<"."<<endl;
}
void libb()
{
cout<<"Lib b"<<endl;
}
void libc()
{
cout<<"Lib c"<<endl;
}
void main()
{
for (int run=0; run < 1; run++)
{
intro();
words();
libchoice();
if (choice == 1)
liba();
else if (choice == 2)
libb();
else if (choice == 3)
libc();
else
cout<<"Invalid choice, please pick between 1, 2 or 3."<<endl;
libchoice();
}
}
Add these as well:
Or alternately you can include standard namespace:Code:using std::cin;
using std::cout;
using std::endl;
Code:using namespace std;
>#include <iomanip.h>
And this should be:
#include <iomanip>
If a char holds a single letter, to hold a word you need lots of letter. You may use the string class that does lots of work for you, or you can learn the basic stuff which would be using and char arrayQuote:
Originally Posted by Flakster
The class string internaly stores an array and does all needed manipulation.Code:char letter = 'z';
char word1[] = "a word";//an initialized array
char word[10];//a array with random not-initialized values and size 10 chars