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

Error java.lang.OutOfMemoryError: GC overhead limit exceeded

Error java.lang.OutOfMemoryError: GC overhead limit exceeded

I get this error message as I execute my JUnit tests:java.lang.OutOfMemoryError: GC overhead limit exceededI know what an OutOfMemoryError is, but what does GC overhead limit mean? How can I solve this? 1:This message means that for some

What are POD types in C++?

What are POD types in C++?

I've come across this term POD-type a few times... what does it mean? 1:POD stands for Plain Old Data - that is, a class (whether defined with the keyword struct or the keyword class) without constructors, destructors and virtual member

What is the difference between #include  and #include “filename”?

What is the difference between #include and #include “filename”?

In the C and C++ programming languages, what is the difference between using angle brackets and using quotes in an include statement, as follows?#include #include "filename" 1:In practice, the difference is in the location whe

Providing white space in a Swing GUI

Providing white space in a Swing GUI

A GUI with no white space appears 'crowded'. How can I provide white space without resorting to explicitly setting the position or size of components?­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­

PHP mail function doesn't complete sending of e-mail

PHP mail function doesn't complete sending of e-mail

<?php $name = $_POST['name']; $email = $_POST['email']; $message = $_POST['message']; $from = 'From: yoursite.com'; $to = '[email protected]'; $subject = 'Customer Inquiry'; $body = "From: $name\n E-Mail: $email

C# accessing property values dynamically by property name

C# accessing property values dynamically by property name

The problem I am trying to solve is how to write a method which takes in a property name as a string, and returns the value assigned to said property. My model class is declared similar to:public class Foo{ public int FooId public in

Check two float/double values for exact equality

Check two float/double values for exact equality

What is an elegant, readable and non-verbose way of comparing two floating point value for exact equality? As simple as it may sound, its a wicked problem. The == operator doesn't get the job done for NaN and also has special treatment for

Failing to run jar file from command line: “no main manifest attribute”

Failing to run jar file from command line: “no main manifest attribute”

I am trying to run a jar file from the console:java -jar ScrumTimeCaptureMaintenence.jarAnd am getting the error: Can't execute jar- file: “no main manifest attribute”As you can see I do in fact have a main file and it runs fine from eclip

Why first element is destroyed?

Why first element is destroyed?

I have a piece of code like this:class Data{ public: Data(const std::vector &_data) { my_data = _data; } private: std::vector my_data;};int main(){ std::vector> vec = { std::shared_ptr(

Getting return value from Task.Run

Getting return value from Task.Run

I have the following code here public static async Task Start(IProgress progress) { const int total = 10; for (var i = 0; i RunLongTask(i.ToString(CultureInfo.InvariantCulture))); if (progress != null)

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

How to convert a swift String to CFString

How to convert a swift String to CFString

How can i create a CFString from a native swift String or NSString in swift let path:String = NSBundle.mainBundle().pathForResource(name.stringByDeletingPathExtension, ofType:"pdf") let string:CFString = ??? path let url:CFURLRef =

Using Math.round to round to one decimal place?

Using Math.round to round to one decimal place?

I have these two variables double num = 540.512double sum = 1978.8Then I did this expressiondouble total = Math.round((num/ sum * 100) * 10) / 10;but I end up with 27.0.In fact I have many other variables and when I use them in the expressi

Possible compiler bug in Visual C++ 2012 (x86)?

Possible compiler bug in Visual C++ 2012 (x86)?

I'm currently experiencing random floating point errors when compiling for x86 targets using VC++ 11 (CTP Update 1). See the short example "test.cpp" below, and compile using:cl /GL /O2 /EHsc test.cpp /link /MACHINE:X86The output should be

Identifier list Vs Parameter type list in C

Identifier list Vs Parameter type list in C

6.7.6.3 Function declarators (including prototypes)This part of the standard deals with 'Identifier list' and 'Parameter type list'. First of all, function declaration (not definition) is same as the function prototype. Am I correct? If thi

Is it possible to call a C function, given its name as a string?

Is it possible to call a C function, given its name as a string?

I saw this question in one of the C puzzles!!Is this really possible?How can I call a function, given its name as a string?is it possible to use string that is read with scanf be used directly to calla function?i already have thought of if

Referencing a dataframe recursively

Referencing a dataframe recursively

Is there a way to have a dataframe refer to itself?I find myself spending a lot of time writing things like y$Category1[is.na(y$Category1)] which are hard to read and feel like a lot of slow repetitive typing. I wondered if there was someth

C++ Program in Xcode not outputting simple text file using outFile

C++ Program in Xcode not outputting simple text file using outFile

I am running a program using this simple example code to output a text file. I am using Xcode and simply started a new C++ project from command line tools. For some reason the program does not output any file onto my Mac. Please help figure

How can I generate a set of points evenly distributed along the perimeter of an ellipse?

How can I generate a set of points evenly distributed along the perimeter of an ellipse?

If I want to generate a bunch of points distributed uniformly around a circle, I can do this (python):r = 5 #radiusn = 20 #points to generatecirclePoints = [ (r * math.cos(theta), r * math.sin(theta)) for theta in (math.pi*2 * i/n fo

How to Fill an array from user input C#?

How to Fill an array from user input C#?

What would be the best way to fill an array from user input?Would a solution be showing a prompt message and then get the values from from the user? 1:string []answer = new string[10];for(int i = 0;i 2:Could you clarify the question a

Youtube data API : Get access to media stream and play (JAVA)

Youtube data API : Get access to media stream and play (JAVA)

I want to access a youtube video and play using my own media player. I am able to get the video properties (title, url etc..) using the youtube data API. Can I get access to the stream of the video and use my own Media Player (like the Andr

Ruby regex- does gsub store what it matches?

Ruby regex- does gsub store what it matches?

If i use.gsub(/matchthisregex/,"replace_with_this")does gsub store what it matches with the regex somewhere? I'd like to use what it matches in my replacement string. For example something like"replace_with_" + matchedregexstring + "this

Scale a BufferedImage the fastest and easiest way

Scale a BufferedImage the fastest and easiest way

The task: I have some images, I scale them down, and join them to one image. But I have a little problem with the implementation:The concrete problem:I want to resize/scale a BufferedImage. The getScaledInstance method returns an Image obje

Awk consider double quoted string as one token and ignore space in between

Awk consider double quoted string as one token and ignore space in between

Data file - data.txt:ABC "I am ABC" 35 DESCDEF "I am not ABC" 42 DESCcat data.txt | awk '{print $2}' will result the "I" instead of the string being quotedHow to make awk so that it ignore the space within the quote and think that it is one