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What is causing “Unable to allocate memory for pool” in PHP?
...accessed all of the time like you want and have a big spike where a lot of extra infrequent files get added all at once), you are going to get errors thrown for TTL seconds. The cache is full, and you told APC that it shouldn't clear these entries so it complains. If you have TTL for 5 hours, you en...
Haskell: Where vs. Let
...eptual difference in whether you want to put the main formula upfront with extra variables defined below (where) or whether you want to define everything upfront and put the formula below (let). Each style has a different emphasis and you see both used in math papers, textbooks, etc. Generally, vari...
How can I convert a PFX certificate file for use with Apache on a linux server?
... pkcs12 -in domain.pfx -nocerts -nodes -out domain.key
First command extracts public key to domain.cer.
Second command extracts private key to domain.key.
Update your Apache configuration file with:
<VirtualHost 192.168.0.1:443>
...
SSLEngine on
SSLCertificateFile /path/to/domain.c...
Run Java Code Online [closed]
...ne is the best site for the online code running, debugging and it provides extra performance stats also.
Without Sign Up, you can run code upto of maximum 5 sec, and for signup, upto a max of 15 sec. And for Signup, the code management and history is also too good.
However, it has some maximum am...
android get all contacts
...get all the names of the contacts in my Android and put them into array of strings?
8 Answers
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Detect if an element is visible with jQuery [duplicate]
...l Irish at Google, we identified some cases where we could skip a bunch of extra work when custom selectors like :visible are used many times in the same document. That particular case is up to 17 times faster now!
Keep in mind that even with this improvement, selectors like :visible and :hidden can...
Converting JSON data to Java object
I want to be able to access properties from a JSON string within my Java action method. The string is available by simply saying myJsonString = object.getJson() . Below is an example of what the string can look like:
...
How do you copy the contents of an array to a std::vector in C++ without looping?
...ven when a function expects c-style arrays you can use vectors:
vector<char> v(50); // Ensure there's enough space
strcpy(&v[0], "prefer vectors to c arrays");
Hope that helps someone out there!
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Overloading member access operators ->, .*
...ow is pointing at."
Bruce Eckel: Thinking CPP Vol-one : operator->
The extra functionality is provided for convenience, so you do not have to call
a->->func();
You can simply do:
a->func();
That makes operator -> different from the other operator overloads.
...
How to override trait function and call it from the overridden function?
...
An alternative approach if interested - with an extra intermediate class to use the normal OOO way. This simplifies the usage with parent::methodname
trait A {
function calc($v) {
return $v+1;
}
}
// an intermediate class that just uses the trait
class I...