problem with string class (and size function)

[stmfc]

the code below gives this error:
what is the problem here?

cxx: Error: str1.cpp, line 8: left operand of the "." operator must have a
class type
A.size();
---------^
cxx: Info: 1 error detected in the compilation of "str1.cpp".

#include <iostream>
#include <string>
 
int main()
{
        string A();
        A.size();
 
        return 0;
}

[gpraghuram]

HI,
I assume that u want to know the length of the string.
You want to use the function length() to get the length of the string.

Thanks
Raghuram

[stmfc]

length function gives the same error too

[ilikepython]

length function gives the same error too

The lenght() and size() function are exactly the same. Did you try actually putting some text into the string?

Edit: Also try storing the return value.

[weaknessforcats]

This code:

  string A();
        A.size();
 

does not create an object.

string A(); 
 

This is a function prototype for a function named A that takes no arguments and returns a string.

Change the code to create an object:

  string A;
        A.size();