In C++ , is it possible to pass a var as a argument ?

Question

Example :

#include
#include
#include
using namespace std;

class test
{
private:
public:
int func(pass_string){

pass_string = " Hello " ;

} };






int main()
{
test test1;

string pass_string


test1.func(pass_string);




system("pause")
return 0;
}

Answer 1

you cant pass the string "hello" as an argument, BUT you can pass a pointer to the string, which contains "hello".

char pass_string[] = "Hello"; //or could be CString type
int func(char *pChar);

int main()
{
func(pass_string);
}

func(char* pChar)
{
cout< }

Answer 2

Yes, it is possible to pass a variable by reference.
Your method should be declared as:
int func(string& arg);
PS. Your example has many errors.