Why cant we assign char to strings?

user_14907451 0
Viewed 70

in C++, I noticed if I make a string str="kls";, then I can't write string s1=str[0]; I have to instead write:

string s1;
s1=str[0];

Why so?

initialization char constructor c++ string
1 Answers

The reason is that the class std::string does not have a constructor that accepts a single argument of the type char. While there is a copy assignment operator that accepts as an argument a single character.

basic_string& operator=(charT c);

You could write

std::string s1( 1, str[0] );

or (there is used the initializating-list constructor)

std::string s1 = { str[0] };

or

std::string s1 = { str, 0, 1 };
user_28772410
Related