help me plesss any one
Author
some one if you can give me a hand with this code
all i am doinf is makeing a if with a char
but will not work right.using dev c++
email is black_ops58@hotmail.com
#include <iostream>
#include <stdlib.h>
#include <string>
using namespace std;
int main(int argc, char *argv[])
{
char input;
cout <<"(;-]>";
cin >> input;
if (input = 'help')
{
cout <<"------------\n";
cout <<"- comands -\n";
cout <<"- quit -\n";
cout <<"- help -\n";
cout <<"- -\n";
cout <<"------------\n";
}
if (input = 'quit')
{
cout<<" good bye\n";
}
else {
cout << "bad comand or bad file name :-)";
}
system("pause");
return 0;
}
char is only a character it cant be something like "help".You need to use a string instead.
string command;
cout<<"enter command : ";
cin>>command;
if(command == "help"){
printHelp();
}
Hope that helps.
string command;
cout<<"enter command : ";
cin>>command;
if(command == "help"){
printHelp();
}
Hope that helps.
You need ot use a function called strcmp. It will return zero if it is equal.
if( !strcmp(input, "help" ) )
{
cout <<"------------\n";
cout <<"- comands -\n";
cout <<"- quit -\n";
cout <<"- help -\n";
cout <<"- -\n";
cout <<"------------\n";
}
if( !strcmp(input, "help" ) )
{
cout <<"------------\n";
cout <<"- comands -\n";
cout <<"- quit -\n";
cout <<"- help -\n";
cout <<"- -\n";
cout <<"------------\n";
}
Oh BTW this is a common mistake and hard to find sometimes.
if(input="blahblah"){
}
Notice the single "=".That is the assignment operator comparison is done with "==".
if(input="blahblah"){
}
Notice the single "=".That is the assignment operator comparison is done with "==".
Black Knight is right, your code should look like this ( I commented it to show the changes ):
#include <iostream>#include <string>using namespace std;int main( int argc, char *argv[] ){ string input; cout << "(;-]> "; cin >> input; // Instead of two 'if' statements, use if, else if, and else. This way, always // one of these branches will be taken. if ( input == "help" ) // == instead of =, a common mistake { cout << "------------" << endl; // endl is the C++ standard library way of denoting a new line. Use it. cout << "- comands -" << endl; cout << "- quit -" << endl; cout << "- help -" << endl; cout << "- -" << endl; cout << "------------" << endl; } else if ( input == "quit" ) { cout << "good bye" << endl; } else { cout << "bad comand or bad file name :-)" << endl; } // I omitted system("pause") here. If you want to make the window stay up // you should run the program from the console instead of artificially // pausing it. return 0;}This topic is closed to new replies.
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