Required compile flags in order to user perf
I am trying to understand linux perf and hotspot to understand call stacks/trace of my c++ application. Should the program compiled in debug mode or in release mode ? Assuming I have only one file …
Tag: c
How to create a file in a specified path in Ubuntu using C# [closed]
I have a program which runs as Linux based container in Ubuntu system. The project is written using .NetCore libraries. From my ‘root’ directory in Ubuntu I can set the path as below and see existing …
How to safely delete a socket file descriptor used with epoll in a multithreaded program?
I am trying to solve the epoll race condition problem where an epoll event loop is running and I want it to stop watching a socket file descriptor (FD), but I can’t really know after calling epoll_ctl(…
Search in Rotated Sorted Array Leetcode
I’m stuck in the question. My code keeps returning 3 as output for the inputnums = [4,5,6,7,0,1,2], target = 0. I’m doing some modified version of binary search and printing the indices of middle …
problems with a for-loop in C#
I am very new to C# programming (2 days in so far), after learning intermediate python and doing a few small projects, I am trying to learn C# But because me knowing python, I am finding C# a little …
Array malfunction in C – array is not out of bound [closed]
Here is the code i try to run: void main(){ int arr[2][3]={0}; arr[1][2] = 2; printf(“%d”, arr[1, 2]); } It gives me the output as 2. What the hell is going on here. I couldn’t …
How to link jsoncpp with cmake
I cannot find a way to link jsoncpp with my executable. I have tried many things but none succeeded: linking jsoncpp_lib also what is written here I want to use the jsoncpp library that comes with …
Externing a C++ class to avoid including its header file
I have created a static library for the following class, libtgbotengine.a and externed the class to be used in a different project. tgbotengine.h #include
Build error: make: Nothing to be done for ‘compile’
I need to add my own package to the openwrt image. On the wiki of the project I found this article I tried to follow the instructions for it, but in the end I did not manage to add my own package to …
to terminate the execution of signal handler in c
i am currently working on project involving the interfacing of an ADC with Ras.-Pi using SPI communication. In the project I am controlling the initialisation of SPI using a timer, which then …