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by: Marco |
last post by:
Hi there ;)
Im building a MySQL table for a menssaging system, its a table that has 3
fields de UserID, MTime and Mess.
My problem is that i cant find a way that using only a mysql query i get the
time and the message, and that for each row.
Basicly the code would look like this, to give an idea...
<?php
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by: Nick L |
last post by:
I'm working on a function which creates a pointers to an array of unsigned
ints based off a number read from a file. I then continue to read file names
from the file, convert the name to a char* and use it to load an texture
from some outside functions. My problem lies in the "for loop", the Code
goes as follows.
//I create the array of pointers, I'm using 2 just for the sake of an
example
MapTextures = new unsigned int;
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by: Phil |
last post by:
Hi,
I read somewhere that the new version (v1.1) has improved the
performance of 'foreach' over 'for'. Is that true? I did some
measurements and I still think for has an upperhand... ?
Phil
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by: Robert Sentgerath |
last post by:
Foreach is a relative handy construct to avoid having to create the classic
"for(int loop = 0; loop < collection.Length; loop++) construct. Though when
I use foreach instead I do not have access to a loop variable that allows me
to display a status message such as "Processing 4 out of 10".
Is there a more elegant way to code the following and avoid having to
declare the index variable?
DirectoryInfo diImport = new...
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by: cody |
last post by:
What about an enhancement of foreach loops which allows a syntax like that:
foeach(int i in 1..10) { } // forward
foeach(int i in 99..2) { } // backwards
foeach(char c in 'a'..'z') { } // chars
foeach(Color c in Red..Blue) { } // using enums
It should work with all integral datatypes. Maybe we can step a bit further:
foeach(int i in 1..10, 30..100) { } // from 1 to 10 and 30 to hundred
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by: cody |
last post by:
why foreach does always have to declare a new variable?
I have to write
foreach (int n in array){}
but Iam not allowed to write:
int n=0;
foreach (n in array){}
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by: Mike Lansdaal |
last post by:
I came across a reference on a web site
(http://www.personalmicrocosms.com/html/dotnettips.html#richtextbox_lines )
that said to speed up access to a rich text box's lines that you needed to
use a "foreach" loop instead of a "for" loop. This made absolutely no sense
to me, but the author had posted his code and timing results. The "foreach"
(a VB and other languages construct) was 0.01 seconds to access 1000 lines in
rich text box,...
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by: David Veeneman |
last post by:
This is a very simple question, but for moe reason I can't find an answer.
Do I take a performance hit if a foreach statement has to evaluate an
expression?
For example, consider the following:
foreach (DataColumn column in view.Row.Table.Columns)
{
// Do something
}
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by: recordlovelife |
last post by:
So I am trying to display a title, date, and content of a wordpress blog. Word press provides nice drop in functions to get the job done with simple names like "the_title", and the "the_content" But on the homepage of a site, i wanted to truncate the content to like the first 75 characters and then put "..." (a perfect use of the smarty "truncate" modifier) and then give the visitor a link to read the whole article. But since "the_content" is a...
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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: 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...
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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: 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...
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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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