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by: MiniDisc_2k2 |
last post by:
Okay, here's a question about the standard. What does it say about
unsigned/signed mismatches in a comparison statement:
char a = 3;
unsigned char b = 255;
if (a<b)
Now what's the real answer here? If a is converted to unsigned, then b>a.
But, if b is converted to signed,then a>b. What's the correct coversion
(what is the compiler supposed to do?)
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by: Prem Mallappa |
last post by:
Hi everyone
this is the program given in answer book to K&R
====================================
#include <stdio.h>
int main()
{
printf (" signed char = %d", -(char) ((unsigned char) ~0 >> 1));
printf (" signed char = %d", (char) ((unsigned char) ~0 >> 1));
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by: fb |
last post by:
Hi Everyone. Thanks for the help with the qudratic equation problem...I
didn't think about actually doing the math...whoops. Anyway... I'm
having some trouble getting the following program to work. I want to
output a bit pattern from base 10 input. All I get is a zero after the
input...I've looked over the code but can't see the problem...any ideas?
/* display the bit pattern corresponding to
a signed decimal integer */
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by: bruce.james.lee |
last post by:
hi
i have a problem with integer subtraction in C.
printf("%d", c < (a - b));
a is got from a #define and is 0x80000000 and b is got from input and
is also 0x80000000.
c is ffffffff (-1).
Now, this should print 1 (true) but it prints 0!
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by: Joannes Vermorel |
last post by:
I am currently trying to port a small open source scientfic library written
in C++ to .Net. The code (including the VS solution) could be found at
http://www.vermorel.com/opensource/selfscaling.zip
My problem is that when I try to compile the library I got a list of linking
error messages. I am not a specialist of porting C++ code to .Net. Does
anyone has an idea on how to make this code compile in .Net ?
Thanks,
Joannes Vermorel
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by: Antonio Ruiz Martínez |
last post by:
Hello!
My problem happens when I'm trying to write a string in DER. I'm
using the following code:
signed = SignedData.Sign(Signer, False,
CAPICOM.CAPICOM_ENCODING_TYPE.CAPICOM_ENCODE_BINARY)
in order to get a PKCS#7 in DER. The signed is defined as string.
The problem is that I don't know how I can write this string in a binary
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by: alice |
last post by:
Hi,
Please look at the following program:
int main(void)
{
char c;
c = -16;
if(c & (0x1<<7) !=0)
printf("TRUE\n");
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by: =?iso-8859-2?B?SmFuIFJpbmdvuQ==?= |
last post by:
Hello everybody,
this is my first post to a newsgroup at all.
I would like to get some feedback on one proposal I am thinking about:
--- begin of proposal ---
Proposal to add
signed/unsigned modifier to class declarations
to next revision of C++ programming language
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by: imaloner |
last post by:
I am posting two threads because I have two different problems, but both have the same background information.
Common Background Information:
I am trying to rebuild code for a working, commercially sold application with only partial build instructions. The previous maintainer of the code (a
mixture of C and C++) is no longer with the company, but when he built the code he used MSVC++, and though I am not certain of the version he was ...
|
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: 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...
|
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: 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: 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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