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by: Steven T. Hatton |
last post by:
Should I be able to forward declare something from a namespace different
from the current one? For example the following code compiles:
//testdriver.hpp
#ifndef TESTDRIVER_HPP
#define TESTDRIVER_HPP
#include <ostream>
namespace ns_testdriver{
using std::ostream;
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by: Marcin Kalicinski |
last post by:
Hi All,
In some headers meant to work with both C and C++ the following is often
found:
typedef struct tagMyStruct { /*some members*/ } MyStruct;
Can I forward-declare MyStruct somehow?
Or more generally, can I forward declare a typedef or an enum? Also, is
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by: Milind |
last post by:
Hi,
I was trying to implement a composition relation, somthing of the
following type:
class A
{
public:
class B
{
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by: Terry Holland |
last post by:
I have a an assembly with the following code
Module modEnums
Public Enum enuFixType
ftyButtSide 'jamb full height, header inside jambs
ftyButtTop 'header full width, jambs butt up to header
ftyMorticeSide 'tenons at each end of header
ftyMorticeTop 'tenons at end of jambs
End Enum
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by: mark.moore |
last post by:
I know this has been asked before, but I just can't find the answer in
the sea of hits...
How do you forward declare a class that is *not* paramaterized, but is
based on a template class?
Here's what I thought should work, but apparently doesn't:
class Foo;
void f1(Foo* p)
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by: Noah Roberts |
last post by:
I have something like the following:
template<ENUM X, int I = 0>
class Generic
{
....
};
typedef Generic<Val1> v1_type;
typedef Generic<Val2> v2_type;
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by: toton |
last post by:
Hi,
I have two namespace contains class InkFrame and PrefDialog
respectively. PrefDialog needs InkFrame to show the dialog over the
frame. It also stores a pointer to InkFrame inside it.
Now I want InkFrame to be forward declared in the PrefDialog header
file rather than to be included. I want to include it in the cpp file
instead. There is no harm including it in PrefDialog header, and it
works. But I want to save some compilation time....
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by: Hunk |
last post by:
Hi
I have a question on usage of forward declarations of templates. While
searching through this group , people suggested using forward
declarations and typedefs for templates as
// in myfile.h
template<typename T,typename R>
class some_class;
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by: Jef Driesen |
last post by:
I have the following problem in a C project (but that also needs to
compile with a C++ compiler). I'm using a virtual function table, that
looks like this in the header file:
typedef struct device_t {
const device_backend_t *backend;
...
} device_t;
typedef struct device_backend_t {
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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