I got an Android Nexus 7 (2013, Wi-Fi) device a short while ago. I attached
the device to my computer and tried to list the devices with adb
devices command. But, unfortunately, I got the following error message:
$ adb devices
List of devices attached
???????????? no permissions
In the following of …
Code coverage is a metric to show the code being untested. It can be considered as a hint to add more test cases. When we are writing C/C++, the most notable code coverage testing tool is gcov, which is a GCC built-in coverage testing tool. Besides, we can collect …
In some circumstances, we would like to ignore the files (or directories) under the Git repository base directory. How could we do this? For example, assume that we have a Git repository with following files:
out/bin/conv
preprocessed/out/gen-case1.h
preprocessed/out/gen-case2.h
preprocessed/input.txt
conv …I used to download the large files with wget because I can simply
resume the download tasks with -c option. This option will check
the size of the output file, and download the rest of the file from the server.
I can even restart the download task with a different …
C++11 introduced three new smart pointer class templates:
std::unique_ptr, std::shared_ptr, and std::weak_ptr.
These smart pointer class templates are designed to replace the old
std::auto_ptr smart pointer, which is known to have some defect and
deprecated now. In this post, I would …
Today I have encountered a problem: Given that there are multiple equivalent
keys in an instance of std::multimap, how could we list all of the
corresponding values? For example:
#include <map>
#include <iostream>
int main() {
std::multimap<int, int> xs;
xs.insert(std::make_pair(1, 12));
xs.insert …Waliki is a simple wiki app for Django. We can write wiki contents with reStructuredText and the contents will be stored in a Git repository. In this post, I would like to introduce the instructions to install Waliki.
First, install the related Ubuntu packages:
$ sudo apt-get install git …The Python package manager pip is a tool to manage the installed site packages. With pip, we don't have to be worried about the package dependencies anymore. pip will download the required packages from Python Package Index automatically.
To download and install the packages from Python Package Index …
