CODEWITHSUNDEEP
c++storage
Cheetah jimi
Cheetah jimi

Reputation: 31

c++: How to store the rest of the string in a variable?

Hey guys I have a question about storing the output to a variable. Let's say I have 3 variables defined as follows:

float num, 
string units, 
string rest;

and the user enters this in the console: 

 12.2
 mg 
 Vitamin

I know if I want to store it in variables, I have to do the following: 

cin >> num >> units >> rest;

But let's say the user enters Vitamin A instead of Vitamin.

And the I want to store the rest of the string after mg into 'rest' variable. how do I do that?

I did the following:

cin >> num >> units;
getline(cin,rest); //stores the rest of the string into rest

But this also stores the space character after mg namely if I output rest, it would output " Vitamin A". I don't want this space in the beginning. How do I accomplish this?

I know it's long but I hope I made it clear. Any help or suggestions would be helpful. Thanks,

Upvotes: 0

Views: 78

Answers (1)

taocp
taocp

Reputation: 23634

You can skip whitespace by using std::ws

cin >> num >> units;
ws(cin);
getline(cin, rest);

You can see a live working example here: ignore leading whitespace

Upvotes: 3

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