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Weird...

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closed account oNA4216C (35)
I felt like my c++ knowledge is leaving me... can you do something like this?

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 if (something !== 5||2||6){
balah blah blah
}


i don't know if you can do this... if you can, plz help me

thx.
Farshad Aroon (20)
What do you mean?
explain your problem clearly.
Last edited on
closed account oNA4216C (35)
can you do something like

if a variable is not equal to a number{
do something
}

?
thx again.
Farshad Aroon (20)
Maybe you mean this:

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if(something!=5 || something!=2 || something!=6){
.
.
.
}
Farshad Aroon (20)
for checking equality of two numbers, you should use ==.
for checking inequality, you should use !=

note that = is for assignment and == is for checking equality.
closed account oNA4216C (35)
yeah something like that but it doesn't work.

if i do something !==5 it gives me an error...
expected primary expression before '=' token or something like that...

thx
Farshad Aroon (20)
Dear WheatFieldOnFire,
for learning C++, it is better to learn C first and when you become advanced in C language, you can easily learn C++ without any serious struggles.
It doesn't mean that anybody can't learn C++ until he/she learn C, I mean that it's easier and better.
However, I offer you to stop writing programs and first try to learn the language you want.
Farshad Aroon (20)
!== is wrong.
!= is correct.

try again
closed account oNA4216C (35)
!= don't work.

try again.

IT JUST DON"T WORK
closed account oNA4216C (35)
thx for the advice though, but i already learned cpp. So i need to learn c next?
Last edited on
Farshad Aroon (20)
send the code you have write or try mine:

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#include <iostream>

using namespace std;

int main(){
int firstNumber=10, secondNumber=20;

if(firstNumber != secondNumber){
cout<< "10 is not equal to 20" ;
}
if(firstNumber == secondNumber){
cout<< "10 is equal to 20" ;
}

return 0;
}
Last edited on
closed account oNA4216C (35)
wait i see your point... it worked on cpp.sh but didn't work on my IDE or something... can you do the same (!=) with strings?
closed account oNA4216C (35)
like my program is asking for a string and i want to see if the user entered a valid string answer like the options i gave them...
Farshad Aroon (20)
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#include <iostream>
#include <string>

using namespace std;

int main(){
string S1("My first string");
string S2("My second string");

if(S1 != S2){
cout<<S1<<'\n'<<"is not equal to "<<'\n'<<S2 ;
}

return 0;
}
Last edited on
Farshad Aroon (20)
closed account oNA4216C (35)
but like i want to ask for the string from user and then "compare" it... it didn't work...

like

cin string;

if string==something
{...}else if string==something2
{...}else if string!=something2||something //this part
{...}
Last edited on
Farshad Aroon (20)
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#include <iostream>
#include <string>

using namespace std;

int main(){
string password("My password");
string userEntered;

cout<<"Please Enter your password: ";
cin>>userEntered;

if(userEntered == password){
    cout<<"Correct password";
}
if(userEntered != password){
    cout<<"Wrong password";
}

return 0;
}
Farshad Aroon (20)
I use windows and Code::Blocks IDE.
if you use another operating system or another IDE, I have no idea.
closed account oNA4216C (35)
we've the same one. but i used else if statements instead of just if... so i guess that is why it didn't work.

thx
Amker (2)
u cant do this: if(something !== 5||2||6)
u have to do like this
 
 
if(something !=2 || something !=5 || something != 6)

for the sting comparison. u have to do either one.
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cin >> sting;
if( string == "something") // put " " to a string that u didn't declare
or 
string b="something";
if(sting == b)
Pages: 12