Re: problem with seekg
James Kanze wrote:
On Mar 30, 1:19 am, "Julian" <jul...@nospamtamu.edu> wrote:
This line doesn't compile on my systems. What's _TCHAR? (For
that matter, what's _tmain? I would have expected main here,
and in fact, must use main if I don't want an error at link
time.)
I'm sorry about that... I just created a default win32 console project
using VS2005 and thats what it gave me. I'm really not sure whats the reason
for all that either, but i think it somehow converts to the typical main()
That's what I suspect as well, but since I don't normally have
access to a Windows machine...
FWIW, these are part of Microsoft's mechanism to support adapting source
code for code to run with either narrow or wide characters, depending on
whether the controlling macro is defined. _TCHAR is a macro that is
replace by either char or wchar_t, and _tmain becomes either main or (I
think) wmain. Much of the OS interface changes names as well, adding an
A or a W suffix to what you think the name is. This leads to mysterious
errors when you happen to use the name of an OS interface function as
the name of a member function: it's actual name changes from file to
file, depending on whether you've included, directly or indirectly, the
header "windows.h":
// header myclass.h
class C
{
void whatever();
};
// source file myclass.cpp
#include "myclass.h"
#include "windows.h"
void C::whatever()
{
}
error: whateverA is not a member of class C.
Sorry about the phony name. I haven't done much Windows programming
recently, so can't come up with common examples off the top of my head.
--
-- Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com)
Author of "The Standard C++ Library Extensions: a Tutorial and
Reference." (www.petebecker.com/tr1book)