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Is there a way to either read what a cin says and convert that into a command, or is there a way to do a switch statement but

With a string?

19th Sep 2019, 10:51 PM
DeathPony333
DeathPony333 - avatar
5 Réponses
+ 1
You can always go back to using an if - else if - else statement. A switch statement is basically the same, but it only works with types who have an integral representation. So instead of writing switch ( string ) { case "...": {} case "....": {} default: {} } you can write if ( string == "..." ) {} else if ( string == "...." ) {} else {} In this case, it might be a good idea to convert the string you got from the user to lowercase, so that you have to compare against less cases and it becomes redundant if a user enters "add" or "AdD". You can do this by applying the following snippet of code onto a string: std::string s{ "Hello World!" }; std::transform ( s.begin(), s.end(), s.begin(), ::tolower ); cout << s; // hello world! If you want to do that, make sure to include both <algorithm> for std::transform() and <cctype> for std::tolower() as headers in your program.
20th Sep 2019, 8:58 AM
Shadow
Shadow - avatar
0
You mean like input text and have it evaluated like code? If that’s what you mean, that’s generally a very bad idea, because it’s unsafe to let users input any code they want.
20th Sep 2019, 12:43 AM
Rora
0
I mean with a string, it can only be a char or an int, so if you want to run something where the user puts in a sentence or something, you cant put that cin into a switch and do certain commands with it
20th Sep 2019, 12:46 AM
DeathPony333
DeathPony333 - avatar
0
So like you can do char y; Int main () { Cin >> y; Switch (y) { Case 'h' : cout << "you inputted h"; But you can't do string y; Int main() { cin >> y; Switch (y) Case "this is a password" : cout <<"to you typed in password";
20th Sep 2019, 12:50 AM
DeathPony333
DeathPony333 - avatar
0
I'm basically trying to say is there a way to have a user input something longer than one character, and have it do something based on what the user said
20th Sep 2019, 12:52 AM
DeathPony333
DeathPony333 - avatar