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by: Peter Piper |
last post by:
A Quick question if someone could help, im sure this has been asked
before, but googling is getting me now where slowly.
Is it possible to get an unsigned 32 bit integer field in Access.
Im storing IP address in their integer form (ie. 32 bits) and Long
Integer because it is signed can not represent the full range needed
(0..4294967295), neither can Double.
Any suggestions please?
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by: Fred Ma |
last post by:
Hello,
I've been trying to clear up a confusion about
integer promotions during expression evaluation.
I've checked the C FAQ and C++ FAQ (they are
different languages, but I was hoping one would
clear up the confusion), as well as googling
groups and the web.
The confusion is that for a binary operator,
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by: dam_fool_2003 |
last post by:
For int data type the default range starts from signed to unsigned. If
we don't want negative value we can force an unsigned value. The same
goes for long also.
But I don't understand why we have signed char which is -256. Does it
means that we can assign the same ASCII value to both signed and
unsigned. That means the ASCII value can be represented with a type of
signed char and also unsigned char?
For example
int main(void)
{
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by: jacob navia |
last post by:
I would like to add at the beginning of the C tutorial I am writing
a short blurb about what "types" are. I came up with the following text.
Please can you comment?
Did I miss something?
Is there something wrong in there?
--------------------------------------------------------------------
Types
A type is a definition for a sequence of storage bits. It gives the
meaning of the data stored in memory. If we say that the object a is an
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by: bjk of course |
last post by:
hello,
I've stumbled upon this in some code:
n = !!x;
I've ran it and 'n' is always either 0 or 1. Is '!!' an operator (what's it
called?) and is it standard/portable?
--
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by: Frederick Gotham |
last post by:
The "toupper" function takes an int as an argument. That's not too
irrational given that a character literal is of type "int" in C.
(Although why it isn't of type "char" escapes me... )
The "toupper" function imposes a further constrait in that the value
passed to it must be representable as a unsigned char. (If C does not
require all character values to be positive, then again, this constrait
too escapes me... )
Let's say we have the...
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by: techie |
last post by:
I have defined a number of unsigned integer types as follows:
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
typedfe long long uint64;
Is it necessary to explicitly cast from one type of unsigned integer type to
another even though they do so implicitly?
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by: somenath |
last post by:
Hi All,
I am trying to undestand "Type Conversions" from K&R book.I am not
able to understand the
bellow mentioned text
"Conversion rules are more complicated when unsigned operands are
involved. The problem
is that comparisons between signed and unsigned values are machine-
dependent, because
they depend on the sizes of the various integer types. For example,
suppose that int is 16 bits
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by: viza |
last post by:
Hi all
int i= INT_MIN;
unsigned int u= -i;
Is u guaranteed to have the absolute value of INT_MIN?
Why it might not: -i has type (int), and -INT_MIN might be more than
INT_MAX.
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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: 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: 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: 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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by: bsmnconsultancy |
last post by:
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