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by: Stefan Höhne |
last post by:
Hi,
as I recon, std::vector::clear()'s semantics changed from MS VC++ 6.0 to
MS' DOT.NET - compiler.
In the 6.0 version the capacity() of the vector did not change with the
call to clear(), in DOT.NET the capacity() is reduced to 0.
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by: Anonymous |
last post by:
Is there a non-brute force method of doing this?
transform() looked likely but had no predefined function object.
std::vector<double> src;
std::vector<int> dest;
std::vector<double>::size_type size = src.size();
dest.reserve(size);
for (std::vector<int>::size_type i = 0;
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by: aaragon |
last post by:
I am trying to create a vector of type T and everything goes fine until
I try to iterate over it. For some reason, the compiler gives me an
error when I declare
std::vector<T>::iterator iter;
Any ideas why is tihs happening? The code is as follows:
template <class T>
struct StdVectorStorage
{
std::vector<T>* _storage;
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by: Lionel B |
last post by:
On my platform I find that the std::vector<boolspecialisation incurs a
significant performance hit in some circumstances (when compared, say, to
std::vector<intprogrammed analagously). Is it possible to "spoof"
std::vector into implementing a "true" vector of bool rather than the
specialisation?
Say I do:
typedef bool boolreally;
std::vector<booleallybvec;
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by: Bobrick |
last post by:
Hi.
Thanks to everyone who replied to my last post, it turns out it wasn't
the line where I was trying to treat the variable in question as an
array which was the problem, but the line above.
char temp;
std::vector<unsigned charmmessage;
while (!done){
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by: timor.super |
last post by:
Hi group,
how to convert a string to a vector of unsigned char ?
I used to iterate trough the string to set the vector, but I think
this is not the best way to do this.
I'm a beginner with the STL
How about allocating the vector ? should I know before the size ?
And I would like to do then opposite conversion, from an unsigned char
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by: jacek.dziedzic |
last post by:
Hi!
I need to be able to track memory usage in a medium-sized
application I'm developing. The only significant (memory-wise) non-
local objects are of two types -- std::vector<and of a custom class
simple_vector<that is a hand-rolled substitute for array<>. With the
latter I have code that tracks all allocations and destructions, so I
can account for all the memory.
The question is about std::vector<-- how can I track memory usage
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by: Rune Allnor |
last post by:
Hi folks.
I have a function that takes an element in a vector as
argument. The naive interface goes as
float computeSomething(const std::vector<float>& v, size_t i)
{
size_t j = i-1;
size_t k = i+1;
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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,...
|
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...
|
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...
|
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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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