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How to determine the memory footprint (size) of a variable?
...mods-available/memprof.ini
sudo php5enmod memprof
service apache2 restart
And then in my code:
<?php
memprof_enable();
// do your stuff
memprof_dump_callgrind(fopen("/tmp/callgrind.out", "w"));
Finally open the callgrind.out file with KCachegrind
Using Google gperftools (recommended!)
First of ...
There can be only one auto column
... MySQL says "Incorrect table definition; there can be only one auto column and it must be defined as a key" So when I added primary key as below it started working:
CREATE TABLE book (
id INT AUTO_INCREMENT NOT NULL,
accepted_terms BIT(1) NOT NULL,
accepted_privacy BIT(1) NOT NULL,
prim...
ctypes - Beginner
...vanced python users would implement ctypes. Well i'm a beginner in python and need help.
3 Answers
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Get content uri from file path in android
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thanks! second method works fine on 1.6, 2.1 and 2.2 but first one only on 2.2
– mishkin
Nov 30 '10 at 2:45
29
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How do you do Impersonation in .NET?
...ersonationContext
WindowsIdentity
The code can often get lengthy though and that is why you see many examples like the one you reference that try to simplify the process.
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How to send an object from one Android Activity to another using Intents?
...effort to use than using Java's native serialization, but it's way faster (and I mean way, WAY faster).
From the docs, a simple example for how to implement is:
// simple class that just has one member property as an example
public class MyParcelable implements Parcelable {
private int mData;
...
What is meant by immutable?
...nterface is immutable but behind the scenes actual mutables private state (and therefore can't be shared safely between threads).
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Possible Loss of Fraction
... postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
What is difference between functional and imperative programming languages?
...object-oriented programming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programmin...
Best practice for creating millions of small temporary objects
What are the "best practices" for creating (and releasing) millions of small objects?
13 Answers
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