Structure vs Class Only different !

Structure vs Class

only different: base access modifier

Structure is Public.
Class is Private.

target board Setting NFS

1. sudo apt-get install nfs-common nfs-kernel-server portmap

2. sudo vi /etc/exports
/home/nfs/folder 192.168.0.*(rw,no_root_squash,async,subtree_check)

3. sudo /etc/init.d/nfs-kernel-server restart

4. mkdir /home/nfs/folder

// target board
1. mount -o port=2049,nolock,proto=tcp -t nfs 192.168.0.100:/home/nfs/folder /mnt

Git Command

git init : create Git Repository in current directory
git status: check uncommit issue
git --version : check version
git add: update in staging area( staging area: buffer area between work tree and repository)
git commit: commit file in staging area
git diff : show different between work tree and staging area
git config (--global) --list: check config information(--global set global, besides current area)
git log: commit log
git log $CommitName: show log in CommitName
git clone $repo $folder: copy from $repo and $local folder
git fetch: update local repo(though remote branch)
git push: push origin repo
git gc: repo log optimization



ADDING....

GIT clone error / delete branch in remote repository

GIT clone Error

ERROR

fetal: internal server error

remote: internal server error

fatal: early EOF

fatal: index-pack failed

solution :

if 'origin' branch was delete in remote repo, local is update about the information and the branch is delete automatically. 

cmd:

  $ git remote prune origin

printf % type

%c/%C  char

%s  string 

%p  pointer value hexadecimal number

%d/%i  signed decimal number

%u  unsigned decimal number

%f/%F  float

%e/%E  ?(real number exponent ?)

%g/%G  according to size, if size is small, %f/ if big is, %e

%x/%X  hexadecimal number

%o octal number

%n  line feed

QML and C++ Integration

Integrating QML and C++ provides a variety of opportunities, including the ability to:

1. Separate the user interface code from the application logic code, by implementing the former with QML and JavaScript within QML documents, and the latter with C++

2. Use and invoke some C++ functionality from QML (for example, to invoke your application logic, use a data model implemented in C++, or call some functions in a third-party C++ library)

3. Access functionality in the Qt QML or Qt Quick C++ API (for example, to dynamically generate images using QQuickImageProvider)

4. Implement your own QML object types from C++ — whether for use within your own specific application, or for distribution to others


 source: http://doc.qt.io/qt-5/qtqml-cppintegration-overview.html