g*******s
发帖数: 59 | 1 friend ostream & operator <<(ostream &output, const Complex &rhs)
{
output<<"("<
return output;
}
can compile and run well;
however if inside class define
friend ostream & operator <<(ostream &output, const Complex &rhs);
outside class
template
ostream & operator <<(ostream &output, const Complex &rhs)
{
output<<"("<
return output;
}
ERROR:
main.obj : error LNK2019: unresolved external symbol | P********e
发帖数: 2610 | 2 put that outside definition of operator << in .h file
【在 g*******s 的大作中提到】
: friend ostream & operator <<(ostream &output, const Complex &rhs)
: {
: output<<"("<: return output;
: }
: can compile and run well;
: however if inside class define
: friend ostream & operator <<(ostream &output, const Complex &rhs);
: outside class
: template
|
|
