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How to pipe input to a Bash while loop and preserve variables after loop ends
...so provides the shopt builtin and one of its many options is:
lastpipe
If set, and job control is not active, the shell runs the last command of a pipeline not executed in the background in the current shell environment.
Thus, using something like this in a script makes the modfied sum available a...
How to generate a random int in C?
...om integer between 0 and RAND_MAX. You can use srand(unsigned int seed) to set a seed.
It's common practice to use the % operator in conjunction with rand() to get a different range (though bear in mind that this throws off the uniformity somewhat). For example:
/* random int between 0 and 19 */
i...
Printing the last column of a line in a file
I have a file that is constantly being written to/updated. I want to find the last line containing a particular word, then print the last column of that line.
...
How do I make XAML DataGridColumns fill the entire DataGrid?
...
Make sure your DataGrid has Width set to something like {Binding Path=ActualWidth, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=Window,AncestorLevel=1}}.
Like that, your setting of Width="*" attribute on DataGrid.Columns/DataGridXXXXColumn e...
how to run two commands in sudo?
...ing like:
sudo -u db2inst1 -s -- "db2 connect to ttt; db2 UPDATE CONTACT SET EMAIL_ADDRESS = 'mytestaccount@gmail.com'"
If your sudo version doesn't work with semicolons with -s (apparently, it doesn't if compiled with certain options), you can use
sudo -- sh -c 'whoami; whoami'
instead, whi...
LOGFONT 和 CFont 区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
LOGFONT 和 CFont 区别LOGFONT和CFont 本质上是相同的，前者是存储字体相关数据的一个结构体，后者是封装LOGFONT的一个类，用于创建使用字体。创建字体：CFont ...LOGFONT 和 CFont 本质上是相同的，前者是存储字体相关数据的一个结构...
LOGFONT 和 CFont 区别 - VC/MFC - 清泛IT论坛，有思想、有深度
LOGFONT 和 CFont 本质上是相同的，前者是存储字体相关数据的一个结构体，后者是封装LOGFONT的一个类，用于创建使用字体。
创建字体：
CFont *f = new CFont;
f->CreateFont(13, // nHeight
 ...
MFC 设置控件字体，颜色，大小，粗体，下划线等 - C++ UI - 清泛IT社区，为...
参考代码：CFont *f = new CFont;
f->CreateFont(16, // nHeight
0, // nWidth
0, // nEscapement
 ...
Regular vs Context Free Grammars
...erminals and non-terminals. Hence you can see that regular grammar is a subset of context-free grammar.
So for a palindrome for instance, is of the form,
S->ABA
A->something
B->something
You can clearly see that palindromes cannot be expressed in regular grammar since it needs to be ei...
Two divs, one fixed width, the other, the rest
...
You can set the width of the right div to auto as well, like "flex: 0 0 auto;".
– d.i.joe
Sep 7 at 8:45
add ...