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How to identify platform/compiler from preprocessor macros?
...the Boost libraries strongly enough.
The latest version (1.55) includes a new Predef library which covers exactly what you're looking for, along with dozens of other platform and architecture recognition macros.
#include <boost/predef.h>
// ...
#if BOOST_OS_WINDOWS
#elif BOOST_OS_LINUX
#...
How to kill zombie process
...nate the zombie. (After the parent dies, the zombie will be inherited by pid 1, which will wait on it and clear its entry in the process table.) If your daemon is spawning children that become zombies, you have a bug. Your daemon should notice when its children die and wait on them to determine t...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...
Set the path to restore the file.
Click "Options" on the left hand side.
Uncheck "Take tail-log backup before restoring"
Tick the check box - "Close existing connections to destination database".
Click OK.
share
...
How can I tell when HttpClient has timed out?
... NEVER throw.
string baseAddress = "http://localhost:8080/";
var client = new HttpClient()
{
BaseAddress = new Uri(baseAddress),
Timeout = TimeSpan.FromMilliseconds(1)
};
try
{
var s = await client.GetAsync();
}
catch(Exception e)
{
Console.WriteLine(e.Message);
Console.Writ...
How to position text over an image in css
...
How about something like this: http://jsfiddle.net/EgLKV/3/
Its done by using position:absolute and z-index to place the text over the image.
#container {
height: 400px;
width: 400px;
position: relative;
}
#image {
position: absolute;
left: 0;...
Where can I find the “clamp” function in .NET?
... This is good for cases when you only need to do it once, then whole new function for that feels like an overkill.
– feos
Nov 30 '17 at 16:51
add a comment
...
Heroku free account limited?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4536326%2fheroku-free-account-limited%23new-answer', 'question_page');
}
);
...
Executing a command stored in a variable from PowerShell
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f3592851%2fexecuting-a-command-stored-in-a-variable-from-powershell%23new-answer', 'question_page');
}
);
...
How is CountDownLatch used in Java Multithreading?
...pecified while creating CountDownLatch.
e.g. final CountDownLatch latch = new CountDownLatch(3);
Here we set the counter to 3.
Any thread, usually main thread of application, which calls CountDownLatch.await() will wait until count reaches zero or it's interrupted by another Thread. All other t...
How to check whether a given string is valid JSON in Java
...t org.json.*;
public boolean isJSONValid(String test) {
try {
new JSONObject(test);
} catch (JSONException ex) {
// edited, to include @Arthur's comment
// e.g. in case JSONArray is valid as well...
try {
new JSONArray(test);
} catch (JSON...