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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...
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by: Ken Tough |
last post by:
Seems like a simple thing to find out, but I'm struggling. I have
googled, but everything I find is about implicit conversion,
not explicit.
Is this implementation-specific, or does ANSI/ISO lay out what
should happen for:
--------------------------
signed char sc;
unsigned char uc;
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by: radnus2004 |
last post by:
Hi all,
I am not clear what is the difference between signed and unsigned
in C. Many say, unsigned means only +ve values and 0.
Can I use unsigned int i = -3?
What happens internally ? What conversion happens?
Also on 32 and 64bit machines what happens?
Can anybody explain?
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by: tinesan |
last post by:
Hello fellow C programmers,
I'm just learning to program with C, and I'm wondering what the
difference between signed and unsigned char is. To me there seems to
be no difference, and the standard doesn't even care what a normal char
is (because signed and unsigned have equal behavior).
For example if someone does this:
unsigned char a...
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by: Hanzac Chen |
last post by:
Hi,
I don't understand why this could happen?
The Code 1 will output `fff9'
and the Code 2 will output `1'
How could the `mod 8' not have effect?
/* Code 1 */
#include <stdio.h>
#include <stdlib.h>
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by: Jon B |
last post by:
Hi There!
What is the difference between Signed and UnSigned variables in .NET
Framework?? My background is just in VB6 and I have no idea what is the
difference between ULong and Long etc.
Please enlighten me!!
Thanks!!
Jon
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by: kunal patil |
last post by:
Is there any significant difference (apart from range) in signed char and unsigned char in 'C'. wt can be an application of signed char??
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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...
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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. ...
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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...
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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...
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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...
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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...
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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...
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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...
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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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