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by: Christopher Benson-Manica |
last post by:
Given
signed char str_a="Hello, world!\n";
unsigned char str_b="Hello, world!\n";
what is the difference, if any, between the following two statements?
printf( "%s", str_a );
printf( "%s", str_b );
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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: 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 = -2; /* or = 254 */
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by: ng5000 |
last post by:
Hi,
What's the point of a signed char? As I see it a char represents a
character (not an integer, use an int type e.g. short int if you want
an 8 bit number, or one of the new types, uint8 I think).
I don't know of any character sets that use negatives, e.g. 65 is 'A'
and -65 is 'a'?!?
I'm sure I'm missing something, any ideas?
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by: juanitofoo |
last post by:
Hello,
I've just switched to gcc 4 and I came across a bunch of warnings that
I can't fix. Example:
#include <stdio.h>
int main()
{
signed char *p = "Hola";
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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: Susan Rice |
last post by:
I'm comparing characters via
return(str1 - str2);
and I'm having problems with 8-bit characters being treated as signed
instead of unsigned integers. The disassembly is using
movsx eax,byte ptr
to load my character in to EAX register. I need it to use movzx.
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by: velpur |
last post by:
Dear friends,
( Suppose we change byte orders. For example, our program
reads a file as a character string and converts the byte order. )
// a simple code
#define INTEL_CPU
#ifdef INTEL_CPU
/* *************************** FlipLong() ******************************
* Converts a long in "Big Endian" format (ie, Motorola 68000) to Intel
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by: toe |
last post by:
I have a byte called "x". I want byte "y" to be the complement of
"x" (i.e. all the bits flipped).
Initially I wrote:
char unsigned x, y;
...
x = 72;
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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: 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: 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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