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by: Thomas Paul Diffenbach |
last post by:
Can anyone point me to an open source library of /statically
allocated/ data structures?
I'm writing some code that would benefit from trees, preferably self
balancing, but on an embedded system that doesn't offer dynamic
memory allocation (to be clear: no malloc, no realloc), and with
rather tight memory constraints.
Writing my own malloc to do dynamic allocation from some static pool
isn't really an option, for various reasons, not...
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by: Mountain Bikn' Guy |
last post by:
It is known that one cannot pass arguments as ref or out in a
marshal-by-reference class. My problem is that I have a C DLL (and C#
wrapper) that I need to isolate in an AppDomain and then I need to interact
with many objects in that DLL and wrapper by reference. (So the classes
inherit from MBRO.) While my app is running, I need to obtain info from
objects in the 2nd app domain frequently/speedily and I need update the GUI;
and I need to...
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by: Angel |
last post by:
Hi again,
I'm trying to call functions from a proprietary DLL but it's turned out to
be more difficult than I thought.
I have this W32.DLL which was written in C by USPS. They don't provide the
code so I only have the documentation.
I'm trying to call a function called z4date that, according to the docs,
returns the date as "an 8-byte character string in the "YYYYMMDD" format".
When I run it with this code I've written , I get "Can not...
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by: twawsico |
last post by:
I have a piece of code that needs to read the contents of a binary file
(that I've created with another app) into an array of structures. The
binary data in the file represents just a series of singles that
correspond to those in my structure detailed below. So when I load the
file, all that I know for certain is that there will be some multiple
of these eight singles represented in the binary data.
My code below will read the data...
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by: Mike |
last post by:
Hi,
The example below shows that result of a marshaled data structure is
nothing but a string
>>> data = {2:'two', 3:'three'}
>>> import marshal
>>> bytes = marshal.dumps(data)
>>> type(bytes)
<type 'str'>
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by: David Fort |
last post by:
Hi,
I'm upgrading a VB6 app to VB.net and I'm having a problem with a call to a
function provided in a DLL.
The function takes the address of a structure which it will fill in with
values.
I get an error:
----------------
An unhandled exception of type 'System.NullReferenceException' occured in
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by: cleanrabbit |
last post by:
Hello!
I hate having to do this, because im almost certain there is someone in the world that has come across this problem and i just havent found their solution yet, so i do appologise if this has already been covered.
I have been trying to learn c# as fast as possible in the last month and in doing so i have been re-visiting old C/C++ problems and trying to overcome them in C#.
What i have is a very complex serise of structures. Id...
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by: O.B. |
last post by:
When using Marshal to copy data from a byte array to the structure
below, only the first byte of the "other" array is getting copied from
the original byte array. What do I need to specify to get
Marshal.PtrToStructure to copy the all the data into the "other"
array?
unsafe public struct DeadReckoning
{
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by: O.B. |
last post by:
I have operation within a class that marshals the data into a byte
array. Below are three different ways that work. Are there any
downsides to using one over the the other?
public virtual byte ToRaw1()
{
byte byteArray = new byte;
IntPtr pointer = Marshal.AllocHGlobal(Size);
Marshal.StructureToPtr(this, pointer, false);
Marshal.Copy(pointer, byteArray, 0, Size);
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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: 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: 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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