by: ding feng |
last post by:
I am a beginner. So this question could be very stupid.
Would anyone help me to solve this problem? A formatted txt file is
read. Then i need to look into a vector who is a member of a class to...
|
by: Murali |
last post by:
I have a requirement where I have to use two unsigned ints as a key in a STL
hash map.
A couple of ways to do this is
1. create a struct with two unsigned ints and use that as key (write my own...
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by: pmatos |
last post by:
Hi all,
I have a vector of vector of ints, I could use C approach by using
int but I think C++ vector<vector<int> > would be easier to manage.
So I have a function which creates and initializes...
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by: Jeff |
last post by:
Hello-
Ive never used a vector or vectors in C++ so I have a question for you
all.
I know I can dynamically create the size I need upfront, but is it
possible to
create them on the fly...
|
by: linq936 |
last post by:
Hi,
The following is a psudo code to describe my question:
vector<int> ints;
vector<int>::iterator itr;
while (itr != ints.end()){
int j = some_function(*i);
if (j>0){
ints.push_back(j);
}
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by: foxx |
last post by:
I have 2D data structure, modelled as a vector of vectors of ints.
I'd like to visit each one of the ints and call a function on them.
Is there some smart way of doing this without using a double...
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by: smp |
last post by:
Does anyone know why making a vector of pointers is so much less efficient
than a vector of objects? For a simple example:
int num = 20;
vector<int*v_int_ptr;
v_int_ptr.reserve(num);
...
|
by: Markus Dehmann |
last post by:
Hi,
I'd like to hash std::vector<intobjects using hash_set, but I'm not
sure what hash function to use. Does anybody have a suggestion?
Thank you!
Markus
|
by: barcaroller |
last post by:
In the boost::program_options tutorial, the author included the following
code:
cout << "Input files are: "
<< vm.as< vector<string()
<< "\n";
Basically, he is trying to print a vector...
|
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: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
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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: 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...
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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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