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by: Peng Yu |
last post by:
For example, at the beginning of the C++ program,
I say "using namespace std;"
However, in the middle of the program, I want to disable "using
namespace std;".
Do you know how to do that?
Thanks!
Peng
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by: Squid Seven |
last post by:
This is just bizarre. for the following snippet of code:
#include <string>
using std::string;
I get the error message:
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by: Andreas Müller |
last post by:
Hi all,
I have a class SwitchCursor, that implements IDisposable. Is it legal
to use an object that is not assigned to a reference inside a using
statement like this:
using(new SwitchCursor())// is the SwitchCursor safe from GC?
{
}
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by: Philipp Sumi |
last post by:
Hello all
I have a thread that performs some simple I/O within a loop that runs on
a separate thread. I used the using keyword to ensure the writer's disposal:
using (writer)
{
while (myCondition)
{
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by: charliewest |
last post by:
I've implemented the USING statement to ensure that my newly created sql
connection closes when my method is finished using it. The USING statement is
wrapped in try/catch error handling statement. This works fine.
When i try to implement the "SqlTransation" class, the code does not work as
the SqlTransation object is out-of-scope in the catch statement, and/or,
after the USING statement ends, the sql connection object is automatically...
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by: MuZZy |
last post by:
Hi,
Lately i've been (and still am) fixing some memory leaks problems in the project i just took over
when i got this new job. Among the other issues i've noticed that for localy created objects it
makes difference to explicitly put them to null after working with them is done - it somehow makes
the GC collect them sooner, like here:
void SomeFunc()
{
MyClass c = new MyClass();
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by: Pep |
last post by:
Is it best to include the code "using namespace std;" in the source or
should each keyword in the std namespace be qualified by the namespace tag,
such as
std::cout << "using std namespace" << std::endl;
Myself I am not sure which I prefer, it is certainly easier to specify that
the std namespace is being used instead of tagging each member of the
namespace?
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by: samjnaa |
last post by:
Please check for sanity and approve for posting at python-dev.
In Visual Basic there is the keyword "with" which allows an object-
name to be declared as governing the following statements. For
example:
with quitCommandButton
.enabled = true
.default = true
end with
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by: Wolfgang Meister |
last post by:
Is there a way to let VisualStudio insert automatically (after pressing e.g. F7)
missing "Using" statements at the top ?
Or is there a menu which suggests inserts for using directives ?
How can I otherwise find out which "using" I have to add for e.g. "StreamWriter"
or "File"
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
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...
|
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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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