Re: complex struct
On 01/27/2010 07:54 AM, Larry wrote:
"John H." <oldman_fromthec@yahoo.com> ha scritto nel messaggio
news:c0811d16-94a8-491c-a610-531eb5fac302@c34g2000yqn.googlegroups.com...
Since you didn't talk much about what you are trying to do, I can only
speculate, but I am guessing that your design here is not doing what
you want it to.
anyway,before I was doing:
struct buffer
{
char data[1024];
int bytesRecorded;
buffer(const char * data_, const int bytesRecorded_) :
bytesRecorded(bytesRecorded_)
{
copy(data_, data_ + (bytesRecorded_ * sizeof(char)), data);
}
};
int main()
{
circular_buffer<buffer> cb(numbuff);
// Insert elements
cout << "Push elements:" << endl;
for(int i = 0; i < 10; i++)
{
char szTime[30]; getDateTime(szTime);
cb.push_back( buffer(szTime, 30) );
cout << szTime << endl;
Sleep(1000);
}
// Show elements:
cout << "Show elements:" << endl;
for(int i = 0; i<(int)cb.size(); i++)
{
cout << &cb[i].data[0] << endl;
}
system("pause");
return EXIT_SUCCESS;
}
that worked great! But now I needed to to something like:
std::map<int, circular_buffer<buffer> cb(numbuff)> users
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
What you give is an object, not a type. only circular_buffer<buffer>
Again, you *must* use a pointer(i.e, circular_buffer<buffer>*), or your
application will not work!
which is impossible, that's why I thought I'd wrap up into another struct:
struct circular
{
circular_buffer<buffer> cb[numbuff];
};
so that I should do:
std::map<int, circular> users
but that led me to some problems...
You wrote too many C codes...
and, the buffer struct is too complex
I think what you need is a std::string instead of buffer
--
Yu Han
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