C / C++ / MFC

doorprize wrote:

Is it a matter of sending a message from the button function, saying here is Ctrl 1 but how do you code that?

Josh Gray wrote:

Most implementations of std::string have a smallish stack

Josh Gray wrote:

There is only one stack, you can consider it a global stack I guess

#include <string>

using namespace std;

string& goo()
{
	string myString("George is cool 111111111111111111111 11111111111111111111111111111111111");
	return myString;
}

void foo()
{
	string& str = goo();
}

George_George wrote:

1. In goo, it allocates a string, small. In your point, it should be on the stack on function goo, right?

George_George wrote:

Is it safe?

char *goo1( void )
{
    char *s = new char[5];
    return s;
}
 
char *goo2( void )
{
    char s[5];
    return s;
}
 
string s1 = goo1(); // this is fine since goo1() allocated from heap
string s2 = goo2(); // the local variable in goo2() will be 
                    // invalid once the function goes out of scope

markt wrote:

scott meyers was worth buying