The online course I'm taking has examples that aren't quite compatible with G++/Cygwin

[jdrake]

For instance,

#include <iostreams.h>

void main()
{
cout << "Hello\n";
}

when compiled with g++, throws a couple of warnings about deprecated headers in iostreams.h and an error for using void rather than int for the type of main.

Empirically I discovered that int helped (even if no value was returned) and that the include <iostreams> worked. It was also necessary to add "using namespace std;" as the first statement for cout to be recognized.

Can someone suggest a good language reference manual and programmer reference manual for g++?

[Moschops]

#include <iostreams.h>
That's never been C++. In the old days there was a
#include <iostream.h> , which I suspect is what you meant, but that's not been C++ since 1998, when the following was formalised:
#include <iostream>


void main()
That was never C++. main returns an int.

Whatever this online course is, it appears to be teaching a mixture of just plain not C++, and C++ that's been wrong for almost 15 years.

In terms of references, this http://www.cplusplus.com/reference/ is quite readable, this http://en.cppreference.com/w/ is better but not quite so easily read, and for g++, the online documentation is http://gcc.gnu.org/onlinedocs/

I think you'd do better at this point though to keep reference manuals on the back burner until you've gone through some basics.

[jdrake]

Sorry about the typo in the post with iostreams. There was no "s" in the code itself.

I've been going through the tutorial here but it sometimes gets a little abstract. C++ has many features but the motivation for them can be obscure. I've looked at a couple of the references you mention but they seem to cover more of the libraries than aspects of, e.g., characteristics of classes.

I've found and purchased the C++ Primer Plus (6th Edition), which appears to go over the material with the precision and depth I'm seeking at this time.