Micro fusion and addressing modes

Micro fusion and addressing modes

I have found something unexpected (to me) using the Intel® Architecture Code Analyzer (IACA).The following instruction using [base+index] addressing addps xmm1, xmmword ptr [rsi+rax*1]does not micro-fuse according to IACA. However, if I use

How to apply bindValue method in LIMIT clause?

How to apply bindValue method in LIMIT clause?

Here is a snapshot of my code:$fetchPictures = $PDO->prepare("SELECT * FROM pictures WHERE album = :albumId ORDER BY id ASC LIMIT :skip, :max");$fetchPictures->bindValue(':albumId', $_GET['albumid'], PDO::PARAM_INT);if(isset

Why do I need to override the equals and hashCode methods in Java?

Why do I need to override the equals and hashCode methods in Java?

Recently I read through this Developer Works Document. The document is all about defining hashCode() and equals() effectively and correctly, however I am not able to figure out why we need to override these two methods. How can I take the d

What is a StackOverflowError?

What is a StackOverflowError?

What is a StackOverflowError, what causes it, and how should I deal with them? 1:Parameters and local variables are allocated on the stack (with reference types the object lives on the heap and a variable references that object). The sta

Truncate a decimal value in Python

Truncate a decimal value in Python

I am trying to truncate a decimal value in Python. I don't want to round it, but instead just display the decimal values upto the specified accuracy. I tried the following:d = 0.989434'{:.{prec}f}'.format(d, prec=2)This rounds it to 0.99. B

PHP Convert String into Float/Double

PHP Convert String into Float/Double

I have list of string (size in bytes), I read those from file. Let say one of the string is 2968789218, but when I convert it to float it become 2.00.This is my code so far :$string = "2968789218";$float = (float)$string;//$float = floatval

SharedPreferences Clear/Save

SharedPreferences Clear/Save

Iam trying to make a checker and I want to save a value into SharedPreferences. But i'am not sure if it worksThis what I do to save the value is : * SharedPreferences prefs = getSharedPreferences("PREFERENCE", MODE_PRIVATE); boolean f

How to replace a JSON value in Play

How to replace a JSON value in Play

How do I replace a value in a JSON value in Play?Code to illustrate:def newReport() = Action(parse.json) { request => var json = request.body if((json \ "customerId").as[Int] == -1){ // replace customerId after some logic to find

Convert a string of 0-F into a byte array in Ruby

Convert a string of 0-F into a byte array in Ruby

I am attempting to decrypt a number encrypted by another program that uses the BouncyCastle library for Java.In Java, I can set the key like this: key = Hex.decode("5F3B603AFCE22359");I am trying to figure out how to represent that same st

Getting the fractional part of a float without using modf()

Getting the fractional part of a float without using modf()

I'm developing for a platform without a math library, so I need to build my own tools. My current way of getting the fraction is to convert the float to fixed point (multiply with (float)0xFFFF, cast to int), get only the lower part (mask w

android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 2

android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 2

Below is my codes and I got the android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 2 error. Can anyone tell me how to solve it?ContentResolver cr = getContentResolver(); Cursor cur = cr.query(ContactsContr

What is producing “TypeError character mapping must return integer…” in this python code?

What is producing “TypeError character mapping must return integer…” in this python code?

please, can someone help me with the code bellow?When I run it the logs said: return method(*args, **kwargs) File "C:\Users\CG\Documents\udacity\rot13serendipo\main.py", line 51, in post text = rot13(text) File "C:\Users\CG\Documents\u

How to convert milliseconds to seconds with precision

How to convert milliseconds to seconds with precision

I want to convert milliseconds to seconds (for example 1500ms to 1.5s, or 500ms to 0.5s) with as much precision as possible.Double.parseDouble(500 / 1000 + "." + 500 % 1000); isn't the best way to do it: I'm looking for a way to get the rem

Change a string of integers separated by spaces to a list of int

Change a string of integers separated by spaces to a list of int

How do i make something likex = '1 2 3 45 87 65 6 8'>>> foo(x)[1,2,3,45,87,65,6,8]I'm completely stuck, if i do it by index, then the numbers with more than 1 digit will be broken down. Help please. 1:You can use a list comprehension in

How does one declare the type of an Android preference?

How does one declare the type of an Android preference?

I have a preferences.xml that looks like this: When I do sp.getString("sample", "3.0"), it works fine and returns a string, but it shouldn't be a string, it should be a float. Running sp.getFloat("sample", 3.0f) throws a ClassCastException

How to write nullable int in java?

How to write nullable int in java?

I want to convert a web form to a model in Java.In C# I can write this:public class Test{ public int? Id{get;set;}}The id can be null.But in Java when using struts2 it throws an exception:Method "setId" failedSo how to write this case in

Delphi 7: how to execute shell command and check the result?

Delphi 7: how to execute shell command and check the result?

I'm using Delphi 7 and can't predict the target version of Windows.I need to create a database (probably MySql, but might be something else) and define some table structures. I do not need to populate any data. Unfortunately, all of the ADO

What does LL mean? [closed]

What does LL mean? [closed]

Is LL defined anywhere in the standard (hard term to come by)?ideone accepts the codeint main(){ std::cout and prints84But what does it mean? 1:It is specified in Paragraph 2.14.2 of the C++11 Standard:2.14.2 Integer literals [...]

Easiest way to compose Outlook 2010 mail from Delphi?

Easiest way to compose Outlook 2010 mail from Delphi?

Some of our applications which work fine with different ways of email integration, using mailto:, simulated "Send To...", and SMTP in Windows 2000 and 2003 environments, now move to a new Windows 2008 system with Exchange 2010 and Outlook 2

strcat implementation

strcat implementation

I tried to implement the strcat by myself, and I found the strcat implementation from Wiki like this......but when I use it, there is segmentation fault.What's wrong with the code below?char *strcat(char *dest, const char *src){ size_t i

How to set non-namespaced nil and datatype attributes in JAXB

How to set non-namespaced nil and datatype attributes in JAXB

I'm using JAXB with Scala, my marshalling code looks like this:def marshalToXml(): String = { val context = JAXBContext.newInstance(this.getClass()) val writer = new StringWriter context.createMarshaller.marshal(this, writer) writer.toS

has_many :through questions

has_many :through questions

I was previously using has_and_belongs_to_many, and have converted to has_many :through. Here's how it looks for a list of games that can have many users playing. With this, I can do game.users and user.games....:class Game :destroy has_

How to delay Default.png?

How to delay Default.png?

How can I delay the app loading to show the splash screen for longer? 1:You should let the app start as usual then make the first view that appears have the identical image on it as the splash screen. Start a timer and then replace that

Run C# code inside a SQL Agent Job

Run C# code inside a SQL Agent Job

I have a piece of code that needs to run every day at a specified time. The code right now is sitting as a part of my web application. There are 2 stored procedures to get/save data that the code uses. How can I setup Microsoft SQL Server M

SQLAlchemy - Writing a hybrid method for child count

SQLAlchemy - Writing a hybrid method for child count

I'm using Flask-SQLAlchemy, and I'm trying to write a hybrid method in a parent model that returns the number of children it has, so I can use it for filtering, sorting, etc. Here's some stripped down code of what I'm trying:# parent.pyfrom