by: Christian Brechbühler |
last post by:
The template std::valarray behaves pretty much like a mathematical
vector. Arithmetic operators apply elementwise. Now I'd like to extend
this to a user-defined type, e.g., complex.
...
|
by: Steven T. Hatton |
last post by:
I bought Josuttis's book on the repeated recommendations of people in this
newsgroup.
http://www.josuttis.com/libbook/
One of the first things I looked up was the std::valarray<>. And what I...
|
by: Peter |
last post by:
Hi everybody,
I am unfortunately stuck with a probably very simple problem. I made a
class called Particle with a valarray (STL) as a class member.
The code for the class goes like this:
...
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by: ES Kim |
last post by:
comp.std.c++ would be a better place for this question.
Forgive me, but I can't post anything on moderated newsgroups
for some reason.
valarray doesn't have iterators of its own, which makes...
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by: Michael Hopkins |
last post by:
Hi all
I have a subclass of valarray<T> thus
template <typename T>
class uo_val : public std::valarray<T>
{
public:
uo_val ( ) : std::valarray<T>() {}
uo_val (const int sz ) :...
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by: Dack |
last post by:
Hi,
I want to track memory leaks in my application (that is using <valarray>).
I used the following code:
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
But then, when I...
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by: Jim |
last post by:
Hi,
I want to declare that that a valarray of a certain name exist at the
beginning of some code, but I can't instatiate it until I've read in
some parameters later on in a for loop i.e.
int...
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by: john |
last post by:
Hi, in TC++PL3 on page 665, regarding valarray member functions, it is
mentioned:
"valarray operator-() const; // result= -v for every element
// similarly: +, ~, !"
I checked the web and...
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by: john |
last post by:
Hi, in TC++PL 3 on pages 674-675 it is mentioned:
"Maybe your first idea for a two-dimensional vector was something like this:
class Matrix {
valarray< valarray<doublev;
public:
// ...
};
|
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: emmanuelkatto |
last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud.
Please let me know.
Thanks!
Emmanuel
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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: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
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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: 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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