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Why can't variables be declared in a switch statement?
...nt x=10;
printf(" x is %d",x);
break;
This will not compile, see http://codepad.org/YiyLQTYw. GCC is giving an error:
label can only be a part of statement and declaration is not a statement
Even
case 1: int x;
x=10;
printf(" x is %d",x);
break;
this is al...
How to see the changes between two commits without commits in-between?
...question, so I have no idea why it has so many upvotes. The OP is specifically asking how NOT to get the first command you give, and the second has nothing to do with anything.
– psusi
Sep 4 '15 at 17:51
...
How to get client's IP address using JavaScript?
...then please add a comment and I'll update this answer.
Cloudflare
Try it: https://www.cloudflare.com/cdn-cgi/trace
// If your site is on Cloudflare, then you can use '/cdn-cgi/trace' instead
$.get('https://www.cloudflare.com/cdn-cgi/trace', function(data) {
console.log(data)
})
Returns:
fl=4f4...
Git error on commit after merge - fatal: cannot do a partial commit during a merge
...t adding "-i" to the commit command fixes this problem for me. The -i basically tells it to stage additional files before committing.
That is:
git commit -i myfile.php
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...
What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...olves them.
This is discussed here by one of the MySQL development team:
http://jorgenloland.blogspot.co.uk/2013/02/dbt-3-q3-6-x-performance-in-mysql-5610.html
So the summary is: If you've been avoiding joins in the past because of MySQL's abysmal performance with them, then try again on the late...
Android list view inside a scroll view
...="utf-8"?>
<androidx.core.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.Linea...
How can I convert string date to NSDate?
...at = /* find out and place date format from
* http://userguide.icu-project.org/formatparse/datetime
*/
let date = dateFormatter.dateFromString(/* your_date_string */)
For further query, check NSDateFormatter and DateFormatter classes of Foun...
What's the difference between libev and libevent?
...ine I/O, time and signal handlers in one, the extra components such as the http and dns servers suffered from bad implementation quality and resultant security issues, and timers were inexact and didn't cope well with time jumps.
Libev tried to improve each of these, by not using global variables b...
Why charset names are not constants?
... Or maybe "UTF-8" ? When searching internet for code samples you will see all of the above. Why not just make them named constants and use Charset.UTF8 ?
...
OS X10.9 环境下部署 QT5.3.1 常见的编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...件中加入对应的SDK版本:
1
QMAKE_MAC_SDK = macosx10.9
3、:-1: error: [ui_mainwindow.h] Trace/BPT trap: 5
dyld: Library not loaded: /work/build/______________________________PADDING______________________________/lib/QtCore.framework/Versio...