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Why do people use __(double underscore) so much in C++
... C++, Rules and Recommendations :
The use of two underscores (`__') in identifiers is reserved for the compiler's internal use according to the ANSI-C standard.
Underscores (`_') are often used in names of library functions (such as "_main" and "_exit"). In order to avoid collisions, do not...
WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
Could someone give me some guidance on when I should use WITH (NOLOCK) as opposed to SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
...
Coding Katas for practicing the refactoring of legacy code
...
+1 very interesting suggestion. Like you said, the tricky thing is finding an appropriate project. I'll give this one a lot of consideration. Perhaps if I, or others, find some that are very useful it could be saved and documented somewhere as a Kata...
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How to do error logging in CodeIgniter (PHP)
...much detail you want in your logs
Use log_message('error', 'Some variable did not contain a value.');
To send an email you need to extend the core CI_Exceptions class method log_exceptions(). You can do this yourself or use this. More info on extending the core here
See http://www.codeigniter.com/...
Change a column type from Date to DateTime during ROR migration
... This answer is only partially correct, you can not use change_column inside change even on rails 4 or down migration will not work. You should use up/down no matter the version of rails.
– Alan Peabody
Jul 18 '14 at 18:31
...
Avoid line break between html elements
...ted and inserted by JavaScript) you also may want to try to insert a zero width joiner:
.wrapper{
width: 290px;
white-space: no-wrap;
resize:both;
overflow:auto;
border: 1px solid gray;
}
.breakable-text{
display: inline;
white-space: no-wrap;
}
.no-break-before...
How to generate an openSSL key using a passphrase from the command line?
...er when run from a script the command will not ask for a password so to avoid the password being viewable as a process use a function in a shell script:
get_passwd() {
local passwd=
echo -ne "Enter passwd for private key: ? "; read -s passwd
openssl genpkey -aes-256-cbc -pass pass:$pass...
How can I add remote repositories in Mercurial?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How to completely remove borders from HTML table
..."priority" calculated and what border styles are "stronger" (double vs. solid etc.).
I did like this:
<table cellspacing="0" cellpadding="0">
<tr>
<td class="first">first row</td>
</tr>
<tr>
<td class="second">second row</td>
</tr...
The current SynchronizationContext may not be used as a TaskScheduler
...
You need to provide a SynchronizationContext. This is how I handle it:
[SetUp]
public void TestSetUp()
{
SynchronizationContext.SetSynchronizationContext(new SynchronizationContext());
}
...