关于操作符重载问题

[ppsdog1956]

‘＝’‘＋’的重载，为什么说Could not find a match for 'MyString::operator =(MyString)'
MyString operator=(MyString &str)//重载“＝”运算符
{
int size=strlen(str.pstr)+1;
char *p=this->pstr;
this->pstr=new char[size];
strcpy(this->pstr,str.pstr);
delete [] p;
return *this;
}

MyString operator+(MyString &str)//重载“＋”运算符
{
int size=strlen(this->pstr)+strlen(str.pstr)+1;
MyString tempstr;
tempstr.pstr =new char[size];
strcpy(tempstr.pstr,this->pstr);
strcat(tempstr.pstr,str.pstr);
return tempstr;
}
main()
{
a=b;//通过
e=b+c;//重载“＋”运算符//这里出的问题
}

[ALazyworm]

operator+(MyString &str1, MyString &str2);
你的那个+应该是
MyString operator+=(MyString &str)

[handsomerun]

你这两个是类成员函数吗…………

[ssbelle]

最好是
MyString& operator=(MyString &str)