Myself defines a string class MyStringA, realized the "operator=" assignment operation, but encountered when using the following problems:
1, MyStringA STR (" Hello World ") is allowed, but MyStringA STR="Hello World"; Is not
2, to debug the error message is: error: invalid initialization of non - const reference of type 'MyStringA& 'from an rvalue of type' MyStringA '
Want to ask about a great god, and this is what circumstance? How to solve?

CodePudding user response:

 
The class MyStringA 
{
Public: 
MyStringA (); 
Virtual ~ MyStringA (); 

MyStringA (MyStringA& STR); 
MyStringA (CHAR [] s); 
MyStringA (const CHAR * pStr); 


MyStringA& Operator=(MyStringA& STR); 
MyStringA& Operator=(CHAR * PSTR); 
MyStringA& The operator + (CHAR * PSTR); 
MyStringA& Operator + (MyStringA& STR); 
MyStringA& Operator +=(MyStringA& STR); 
MyStringA& Operator +=(CHAR * PSTR); 

Public: 
CHAR * ToString (); 
UINT Length (); 

Protected: 

Private: 
CHAR * psData; 
}; 

CodePudding user response:

 
# include & lt; iostream> 
# include & lt; Cstring> 
# include & lt; string> 
using namespace std; 
Int main () 
{
MyStringA STR (" Hello "); 
CoutCoutCoutMyStringA str2 (" World "); 
STR +=str2; 
CoutCout
MyStringA str3="My String Class"; 
CoutCout//string str3="My string Class"; 
//coutreturn 0; 
} 

CodePudding user response:

MyStringA (MyStringA& STR);
Try to const