Assume having a C++ class. And there's a namespace which should be visible only inside my class. What to do for that? class SomeClass { using namespace Som
I'm trying to build a C++ project however as it finishes it throws this error: undefined reference to __cxa_end_cleanup' The toolchain used is ARM GCC 4.7.3
I'm trying to write a "hello world" program to test inline assembler in g++. (still leaning AT&T syntax) The code is: #include <stdlib.h> #include &
How can I check if a std::thread is still running (in a platform independent way)? It lacks a timed_join() method and joinable() is not meant for that. I thoug
I would like to use matplotlib to plot an x,y graph. To do this, I downloaded "matplotlibcpp.h" from github : https://github.com/lava/matplotlib-cpp However, in
I want to sort array of random numbers using MPI library. The idea is to chop array with MPI_Scatterv and send it to the processes. Every process should localy
I had the code: std::string st = "SomeText"; ... std::cout << st; and that worked fine. But now my team wants to move to wstring. So I tried: std::wst
In short words: Per C++ Primer, pg 69, "auto": "If we want the deduced type to have a top-level const, we must say so explicitly". I would get an top-level
Can sizeof(size_t) be less than sizeof(int)? Do the C and/or C++ standards guarantee that using unsigned int for array indexing is always safe?
I can't find any info on it, but only the other way around (e.g., how to set CMake to use clang). I've installed gcc-4.8 using brew, setup all dependencies, he
I want to convert YUV420P image (received from H.264 stream) to RGB, while also resizing it, using sws_scale. The size of the original image is 480 × 800.
Is it possible to count the CRC of code in the memory of the function in the runtime? I have a function that compares user's password with the secret password.
If I pass the following code through my GCC 4.7 snapshot, it tries to copy the unique_ptrs into the vector. #include <vector> #include <memory> in
I'm wondering whether situation exists where casting is completely necessary. I'm talking here about casts between classes, not basic types. Is casting (be it
I have an application which has several functions in it. Each function can be called many times based on user input. However I need to execute a small segment o
I have to find nth root of numbers that can be as large as 10^18, with n as large as 10^4. I know using pow() we can find the nth roots using, x = (long int)(1
I'm starting to write a video poker program and I'm running into some issues. I have a Hold function as you can see below: void Game::Hold( bool& choice
I've a very basic Linux script (/home/scripts/script.sh): #!/bin/bash echo 'a' | /bin/netcat -vv 10.10.10.1 3333 echo "done" > /tmp/result When I try to r
I know I can change the cursor by "setCursor(const QCursor &)". Now I want to change it by using qss, but I don't know how to do it. QWidget has the cursor
I have this code that doesn't work, but I think the intent is clear: testmakeshared.cpp #include <memory> class A { public: static ::std::shared_pt
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