CODEWITHSUNDEEP
c++type-conversion
KevinCameron1337
KevinCameron1337

Reputation: 517

push string to a vector and convert to int

I would like to read a string of digits then push the digits to a vector one by one.

string _inValue = "12345";
vector<int> _value;

void superint::setVector()
{
for(int i=0; i < _inValue.length(); ++i)
{
    _value.push_back(_inValue[i]);
}
}

What I do is this: I will push_back the ASCII value of '1' (49). I want it to have the value 1.

Is the best way to just use _inValue[i]-48?

Upvotes: 1

Views: 192

Answers (1)

Daniel Frey
Daniel Frey

Reputation: 56863

You need to subtract the value of the ASCII '0':

_value.push_back(_inValue[i]-'0');

That is much more descriptive than just using a magic number like 48.

Upvotes: 4

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