CODEWITHSUNDEEP
c++stringascii
Kenneth Yang
Kenneth Yang

Reputation: 93

C++:: Convert ASCII value to string in

I am trying to convert an int that represents the ASCII value of a character to a single-character string.

I tried the following, and it does not work:
string s1=(char) 97;

However, the conversion works only if I break the assignment apart like this:
string s1; s1=(char) 97;

I am confused by this and can anyone explain the difference?


Thanks in advance!

Upvotes: 9

Views: 46191

Answers (1)

syam
syam

Reputation: 15089

I tried the following, and it does not work: string s1=(char) 97;

That's because the std::string constructor doesn't have any overload that takes a single char. And also, copy is elided so the constructor is called directly, operator =() is never called (document yourself on copy elision).

the conversion works only if I break the assignment apart like this: string s1; s1=(char) 97;

Now the copy is not elided any more, you are really calling std::string::operator =() which does have an overload accepting a single char.

Upvotes: 10

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