I have a list of matrix dimensions like: (1, 2), (3, 2), (2, 3), (3, 1) I want to rearrange the matrix dimensions so that all of them can be multiplied. For the
C/C++ allows assigning values of a pointer to another pointer of the same type: #include <iostream> using namespace std; int main() { int* a = new i
I want to finish a program which can find a string in a file and then output a char 'T' in the end of line which the string exists . And my code like below(in t
You are most likely seeing this question because your question has been closed as a duplicate of this. For a moderately complete list of related questions, ple
I got a problem where I need to access pixels of a opencv Mat image container. I use opencv inRange function to create a mask. In that mask I need to check the
I am programming two static libraries with extern functions in C++. In my first library I have this line of code: EntryPoint.hpp: extern Application* createAppl
Get key by inputting the value of that key in C++ STL map<int,int> m; m[0]=8; m[8]=7; m[1562]=4; m[100]=1; auto i=m.find(1562); cout<
this is the fix at top use this to create a string that Static Mesh Object can accept as a unique identifier so the engine doesn't crash FName name = *FString::
I am very new to C++ , and I am wandering why this code: void display(int display[]){ for(int i=0;i<sizeof(display)/sizeof(int);i++){
I would like to append elements to en empty Numpy array in-place. I know the maximum array size beforehand. I can't find a direct way to accomplish that, so her
I am trying to read user entered data from the stream and then store it in a custom String class. To my best knowledge, std::getline() can rou
I'm new to C++, and am learning using a Mac and VSCode. I'm getting an error with my include statement: #include "glfw3.h" fatal error: 'glfw3.h' file not found
I'm developing android marine navigation client. The client should receive nautical chart images from c++ server. I'm sending data via socket. (from c++: Client
Consider two vectors: vector<int> A = {1, 4, 3}; vector<int> B = {5, 7, 1}; It's given both vectors are of equal length. If I need to use element b
Using the msvc with the /std::c++20 flag on, I can't seem to get the wait call compiled. simple example: #include<future> std::future<int> fut = st
xcb_xv_put_image(m_pConnection, m_xvPort, m_xWindow, m_xGC, m_xvid, 0, 0, m_nWidth, m_nHeight, 0, 0, geom->width, geom->height, m_nWidth, m_nHeight, size,
What is struct Cleaner <T*> mean? Is it specific the second Cleaner can only accept the type of pointer? what is the terminology of this usage in C++? te
I was reading C++ Is it possible to determine whether a pointer points to a valid object? and the correct answer in this thread is that no, yo
How would someone go about implementing a factory function for a templated class? Either my google searches aren't looking for the right thing, or I am misunde
Why this code doesn't compile ? #include <iostream> #include <typeinfo> template <typename ...Ts> void f(); template <typename T> void