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by: Alex J. Dam |
last post by:
Hi,
which guidelines should be used about those integer types defined in the
C++ Standard Library, like string::size_type, istream::pos_type, etc.? Are
they meant to be used only in the library code?
For example, if I call istream::tellg(), should I store its result in a
variable of type pos_type?
Are there any problems if I simply use ints everywhere?
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by: Bryan Parkoff |
last post by:
"#define" can only be inside the global scope before main() function.
"#if" can be tested after "#define" is executed. The problem is that
"#define" can't be inside main() function. I do not wish to create multiple
functions which they look almost identical in C++ source code. The C++
compiler should be able to compile one Test() function into two almost
identical functions before they are translated into the machine language
object. ...
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by: Andreas |
last post by:
Hi!
I'm using an IplImage library from camellia.sourceforge.net, and the
testbench calls a file only containing code like the one below. In
cam_morphomaths_code.c the real computation is made, but I don't
understand where cam_morphomaths_code.c is included and how to set
what parameters to use in the testbench.
How does this code execure? I don't understand a bit...
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by: theotyflos |
last post by:
Hi all,
I have the following:
/*--- SNIP ---*/
typedef struct Argument_s
{
char *address;
int type;
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by: pozz |
last post by:
Hi all,
I have the below #defines
#define NUMBER1 30
#define NUMBER2 50
#define SUM (NUMBER1+NUMBER2)
#define STRING1 "Byte: \x30"
#define STRING2 "Byte: \x50"
If I change NUMBER1 and NUMBER2 I must change STRING1 and STRING2
consequently.
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by: BQ |
last post by:
Hello
Is there a way to declare 'FUNCT' via a define so that if its parameter x, a constant, is
greater than 35, it returns 56, if not, 20.
I would like that at compile time, not at run time.
So:
#define FUNCT(x) x>35?56:20
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by: David T. Ashley |
last post by:
Where is the best place to define TRUE and FALSE?
Are they in any of the standard include files, ever?
Do any standards apply?
What I've traditionally done is something like:
#ifndef (TRUE)
#define TRUE (1)
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by: anon.asdf |
last post by:
Hello!
In the following code-snippet, is it possible to initialize each
element of arr, with STRUCT_INIT?
struct mystruct {
int a;
char b;
};
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by: badc0de |
last post by:
Hello..
a header file of one of my project has macro definitions like this
(for example)
#define PART_A_SORT_1_LABEL_STRING1 100
#define PART_A_SORT_1_LABEL_STRING2 200
#define PART_A_SORT_1_LABEL_STRING3 300
#define PART_A_SORT_1_LABEL_STRING4 400
#define PART_A_SORT_1_LABEL_STRING5 500
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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: 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...
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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: 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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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