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by: Stuart Norris |
last post by:
Dear Readers,
I am attempting to initialise a struct contiaing a dynamic character
string. In the example below I am trying to initialise the name field
so that my struct does not waste space. I know if I change char
name this will work, but I will waste alot of space. (I am
learning so I want to learn the best way)
How can I define a struct the allows variable length character strings
in the
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by: Adam Warner |
last post by:
Hi all,
With this structure that records the length of an array of pointers as its
first member:
struct array {
ptrdiff_t length;
void *ptr;
};
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by: Chris LaJoie |
last post by:
Our company has been developing a program in C# for some time now, and we
haven't had any problems with it, but just last night something cropped up
that has me, and everyone else, stumped.
I have a struct that contains several different types of data. This struct
is used throuout the program. Now, when I compile, I get 6 errors, all of
them "Use of possibly unassigned field 'awayTime'" or "Use of possibly
unassigned field 'intlTime'"....
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by: Rene |
last post by:
I understand that if I don't assign a *local* variable before I use it, the
compiler will generate a "Use of unassigned local variable" error. What I
don't get is why doesn't the compiler just implicitly assign a default value
to my unassigned variable?
At this point you are getting ready to reply to me and tell me that this is
just a way for the compiler to protect me from introducing a possible bug by
preventing me from forgetting to...
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by: John Smith |
last post by:
In the following (pseudo)code, why is it that C# returns an
"unassigned local variable" error for nVar? It seems I have to
declare the variable outside foo() for the error to dissapear.
void foo()
{
int nVar = 0;
SqlDataReader rdr = objCmd.ExecuteReader();
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by: Joseph Geretz |
last post by:
Use of unassigned local variable 'fs'
Please see where I've indicated where the compiler is flagging this error in
the method below. fs is initialized in the first line in the try block, so
why is it flagged as unassigned in the finally block?
Thanks for your help!
- Joe Geretz -
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by: Laura T. |
last post by:
In the following example, c# 2.0 compiler says that a3 and ret are used
before assigned.
as far as I can see, definite assignment is made.
If I add
finally
{
ret = true;
a3 = "b3";
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by: Dom |
last post by:
This is a little tricky, but I think the error I'm getting isn't
valid. The compiler just doesn't know my logic.
MyObject o;
switch (IntVariable)
{
case 1:
o = new MyObject()
break;
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by: mdh |
last post by:
I understand *why* this produces an error and how to correct it, (add
parentheses) but the error itself is a bit eclectic? As I am sure this
will arise again, could anyone throw some logic at it.
int main (int argc, const char * argv) {
struct point {
int x;
int y;
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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: 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: 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...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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