by: Ulrich Heinen |
last post by:
Let's say I have two classes A and B with similar goals but completely
different implementations. In my application code I want to use class A
exclusively, but instances of B should also be...
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by: A. W. Dunstan |
last post by:
I'm porting some code to Visual C++ and have run into a problem - the
compiler won't use a user-written cast operator.
The code uses an envelope-letter approach to passing (potentially)
large...
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by: VPaul |
last post by:
I hope I am posting to the correct group for assistance. Please advise me
if there is another group I should go to.
I am new to this, so I apologize if I don't explain this very well. I do...
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by: MSG |
last post by:
The answer is neither. Use macros.
#define ALLOC(size, type) ((type) *) malloc((size) * sizeof(type))
#define NEW(type, name, size) (type) * (name) = ALLOC((size), (type))
They are both ...
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by: Hazz |
last post by:
In this sample code of ownerdraw drawmode, why does the '(ComboBox) sender'
line of code need to be there in this event handler?
Isn't cboFont passed via the managed heap, not the stack, into this...
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by: Frederick Gotham |
last post by:
Before I begin, here's a list of assumptions for this particular example:
(1) unsigned int has no padding bits, and therefore no invalid bit-
patterns or trap representations.
(2) All types have...
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by: NorseMN |
last post by:
I suppose my problem really started when I decided to implement a top-down design, because management always wants to see the frosting before they let you bake a cake. In any case, I now seem to have...
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by: JoseMariaSola |
last post by:
How may operators and operands does (typename) expression has?
I'd say one operator, the cast operator, and two operands: typename
and expression.
But everywhere I read, cast is categorized as...
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by: C++Liliput |
last post by:
I have a custom String class that contains an embedded char* member.
The copy constructor, assignment operator etc. are all correctly
defined. I need to create a map of my string (say a class...
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
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by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
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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,...
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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...
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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,...
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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...
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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...
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