cmatrix | Terminal based `` The Matrix '' like implementation | Command Line Interface library
kandi X-RAY | cmatrix Summary
kandi X-RAY | cmatrix Summary
CMatrix is based on the screensaver from The Matrix website. It shows text flying in and out in a terminal like as seen in "The Matrix" movie. It can scroll lines all at the same rate or asynchronously and at a user-defined speed. CMatrix by default operates in eye candy mode. It must be aborted with control-c (Ctrl+C) or by pressing q. If you wish for more of a screen saver effect, you must specify -s on the command line. For usage info, use cmatrix -h.
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QUESTION
example.sh:
...ANSWER
Answered 2022-Mar-10 at 17:08vim and less and many other tools access the terminal's alternate screen and then restore the original screen when they are done. You can use tput to access the alternate screen from your shell script:
QUESTION
I'm looking for a generic way of measuring a functions timing like Here, but for c++.
My main goal is to not have cluttered code like this piece everywhere:
...ANSWER
Answered 2022-Feb-09 at 16:17You can utilize RAII to implement a timer that records the execution time of a code block and a template function that wraps the function you would like to execute with the timer.
QUESTION
Following an example I found with google, I tried
What do I need to write into my cs file to make ITuple known there please? I googled for it, didn't find anything (maybe I am blind, but yet).
...ANSWER
Answered 2021-Oct-19 at 12:02As the comments mention, there is no way to use an index setter, and as far as I can see, the indexer always throws IndexOutOfRangeException for valuetuple on .net 4.8
The obvious solution would be to write your own indexer:
QUESTION
I'm trying to use the following C++ class from Python3.7, but can't get the first method 'Set' to work, much less the operator overload methods. I've tried many variations of the Python wrapper and the extern block but I either get the "Don't know how to convert parameter 5" error or a segmentation fault. The examples online and SO answers I've found are too basic or address other issues.
Should my argtypes 1st argument be a pointer to the object? I don't know what syntax would be used to indicate that.
CMatrix.h:
...ANSWER
Answered 2021-Oct-18 at 01:57Here's the problem:
QUESTION
I'm using openCV with Go and have this function:
...ANSWER
Answered 2021-Mar-03 at 13:15See Go Issue #40701. A safer alternative would be the following:
QUESTION
So I'm learning about ctypes and I have a situation similar to the following:
I have a shared library with structures that implement a matrix of doubles and a matrix of complex numbers. I want to wrap both of these structures with ctypes. I know I can make two classes to wrap each structure, but I'm wondering if there is a straightforward way to wrap both structures with one class by specifying a data type.
For example, maybe my library libmatrix.so has the following source file:
ANSWER
Answered 2021-Jan-14 at 23:34Here's a rough example how it could be done. Everything in Python is an object, so the data type can be passed directly and used to allocate the array. A few overrides make the matrix easier to manipulate and display.
QUESTION
Good day. I was wondering if I could get some help on this. I've got the following:
...ANSWER
Answered 2021-Jan-03 at 00:46The problem is in your constructors, see comments:
QUESTION
I have a template matrix class with some typical member functions such as inverse, determinant, operator*, etc.. And I want to reuse the code for these member functions in template realizations for both fixed- and dynamic size matrices.
Is this possible? and if yes, how?
In the code below, like Eigen, I use "-1" for dynamic dimensions. Yes I know I could use a library for this, but for my application, that is not feasible. The standard functionality is not possible due to the nature of the application (CUDA)
Is it possible to make a template class with different member variable size depending on the template parameters? For instance when Dynamic_Rows = -1 and Dynamic_Cols = -1, then the data is just T **data, but otherwise its T data[Rows][Cols].
As of now, I have one template class for dynamic size matrices ("minimal" example below, note that the code is subject to errors/mistakes because I am relatively fresh in "advanced" class templating).
But I want to have a fixed size data member variable in the case of a fixed size matrix instantiation.
...ANSWER
Answered 2020-Aug-20 at 08:44Is it possible....[...] ...when
Dynamic_Rows = -1andDynamic_Cols = -1, then the data is justT **data, but otherwise itsT data[Rows][Cols]?
You can provide a trait type whose specializations gives you the proper type for the CMatrix
QUESTION
I have a matrix class with a subset of its member functions included,
...ANSWER
Answered 2020-Aug-13 at 17:05The assignment operator CMatrix::operator= calls itself recursively.
QUESTION
#include
#include
#include
using namespace std;
class CMatrix
{
private:
string name;
float** matrix;
int nRow;
int nCol;
int nElement; //총 element 수
public:
CMatrix() {
this->name = "Anonymous";
this->nRow = 4;
this->nCol = 4;
matrix = new float* [nRow];
for (int i = 0; i < nRow; i++)
matrix[i] = new float[nCol];
for (int i = 0; i < nRow; i++)
for (int j = 0; j < nCol; j++)
matrix[i][j] = 0;
}
CMatrix(string _name, int _nRow, int _nCol) {
this->nRow = _nRow;
this->nCol = _nCol;
this->name = _name;
matrix = new float* [nRow];
for (int i = 0; i < nRow; i++)
matrix[nRow] = new float[nCol];
}
CMatrix(CMatrix& n1);
~CMatrix() {};
void setElement() {
cout << "" << endl << ">>";
for (int i = 0; i < nRow; i++) {
for (int j = 0; j < nCol; j++)
cin >> matrix[i][j];
}
}
void printMatrixinfo() {
cout << this->name << '(' << this->nRow << ", " << this->nCol << ", " << nRow * nCol << ") " <<
endl;
for (int i = 0; i < nRow; i++) {
cout << "[ ";
for (int j = 0; j < nCol; j++)
cout << matrix[nRow][nCol] << " ";
cout << "] ";
cout << endl;
}
}
string getName() {
return this->name;
}
};
void getData(string& _name, int& _nRow, int& _nCol) {
cout << ">";
cin >> _name >> _nRow >> _nCol;
}
int main() {
string name;
int nRow, nCol;
getData(name, nRow, nCol);
CMatrix x1(name, nRow, nCol);
x1.setElement();
x1.printMatrixinfo();
cout << endl;
return 0;
}
ANSWER
Answered 2020-May-22 at 12:15It might be helpful if you also add the output of the error. Other than that, I can't see a reason why you would use raw pointers, or not use std::vector<> or just simply use multi-dimensional arrays. Also, you have a memory leak, make sure to delete all the new initialized value of the matrix in the class destructor.
Edit: I saw your edit to the question and the comment. The edit to the code still have one error, but it is not in the setElement() but in void printMatrixinfo(), specifically the line:
cout << matrix[nRow][nCol] << " ";
nRow and nCol is out of bounds. from the structure of your code, I guess you want to use cout << matrix[i][j] << " "; here instead.
and again, if this was an problem condition to use raw pointers, dont forget to delete the matrix at destructor (your ~CMatrix() should not be empty!)
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