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• Are +=, |=, &= etc atomic?

  - by SF.

  Are the "modify" operators like +=, |=, &= etc atomic? I know ++ is atomic (if you perform x++; in two different threads "simultaneously", you will always end up with x increased by 2, as opposed to x=x+1 with optimization switched off.) What I wonder is whether variable |= constant, and the likes are thread-safe or do I have to protect them with a mutex? (...or is it CPU-dependent? In this case, how is it on ARM?)

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• C++ and,or,not,xor keywords [closed]

  - by uray

  Possible Duplicate: The written versions of the logical operators. I notice that C++ define keyword and, or, not, xor, and_eq, or_eq, not_eq and xor_eq as an alternative to &&, ||, !, ^, &=, |=, != and |=. and they're rarely used! What's wrong? Are they not portable?

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• __rlshift__, __ror__ in Python

  - by Casebash

  I noticed that this recipe seems to use __rlshift__, __ror__ like operators. But, they aren't in the documentation! Can anyone explain these and perhaps point to some docs?

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• What is the difference between operator "=" and "==" in Bash ?

  - by debugger

  Hello All, It seems that these two operators realize pretty much same. So do you have any idea for the exact difference between the two ? When i need to use "=" and when "==" ?? Thank you, Debugger

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• what is this operator called and what is it used for <=>

  - by Scott

  I recently came across this magical operator when digging into Groovy: <= Groovy has really made me happy with elvis operators ?. and ?: which I use constantly now and very much wish were in Java. With this new operator, I have only found this reference. It seems to make comparators much easier. My question is how does it handle null values and how does it compare non Comparable object. Does this operator have a name, I couldn't find it Googling.

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• How to write 2 statements that differ just by Operator type in VB.NET

  - by Richard Bysouth

  Hi I have the following code sample, where the only difference between the 2 parts of the If statement is the less than/greater than operators. Is there a better way to write this? Could almost do with being able to define an Operator variable. If myVar = true Then Do While (X < Y) 'call Method A Loop Else Do While (X > Y) 'call Method A Loop End If thanks

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• What is the "=~" operator in Ruby?

  - by unpurposed

  I saw this on a screencast and couldn't figure out what it was. Reference sheets just pile it in with other operators as a general pattern match operator.

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• HTML to XML conversion or a good HTML Parser Suggestion written in .Net

  - by mehmet6parmak

  Hi all, I need to parse html for a project and looking for a good html parser or an API providing conversion from html to xml. Waiting for suggestions... Thanks All...

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• "Conversion to Dalvik format failed with error 1" on external Jar

  - by michel

  In my Android appliction in eclipse I get the following error: UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lorg/xmlpull/v1/XmlPullParser; .... Conversion to Dalvik format failed with error 1 this error only appears if I add a specific external Jar to my project. I search long time to the right solution but all possible solutions don't work. I even tried to change to android 1.6 instead of 1.5(current version I use)

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• ASP.NET Conversion failed when converting from a character string to uniqueidentifier

  - by c11ada

  hey all, i have a table which has a primary key (UserID) this is of type UniqueIdentifier. im trying to insert a value into this field but i keep getting an error. i want to get the userID of the current user and insert the into the user_Details table, but i keep getting this error Conversion failed when converting from a character string to uniqueidentifier can some one please help me thanks

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• Date and Time Conversion in Ruby

  - by dkris

  I am currently looking on converting Thu Jun 10 16:17:55 +0530 2010 to 15/06/2010 or 15-06-2010 using Ruby I am getting the dates from the DB as shown below. @tickets = Ticket.find(:all) for ticket in @tickets print ticket.created_at end I have been looking around for resources as I a n00b in RoR/Ruby. I have looked at Class Date Class DateTime and couldn't make much of it. Please let me know how I could achieve this conversion in Ruby.

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• barcode in PDF to Code39 conversion in C#?

  - by acadia

  Hello, I have a PDF file which contains just 1 Page. I have a barcode at the end of the page. How do I extract the barcode number from the PDF in C# I have seen a post to convert barcode Image to Code 39 but how do we do it from PDF, Please help http://stackoverflow.com/questions/204008/barcode-image-to-code39-conversion-in-c#204084 Thanks

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• invalid conversion from ‘float**’ to ‘const float**’

  - by Omry

  I have a function that receives float** as an argument, and I tried to change it to take const float**. the compiler (g++) didn't like it and issued : invalid conversion from ‘float**’ to ‘const float**’ this makes no sense to me, I know (and verified) that I can pass char* to a function that takes const char*, so why not with const float** ?

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• Conversion from jpg to gif with reduced size

  - by Ravi

  Hello, This is nice code. But it is uncertain. I am trying with jpg to gif conversion. With some images it reduces the size and with some images it increase the size. Can you help me that how can i get the reduced sized gif from jpg. Thanks, ravi

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• ISML PAC to XForm Conversion

  - by shikarishambu

  Are there any tools or write-ups that can help in converting ISML PACs to XForms? Does anyone have experience in such a conversion? TIA

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• Conversion between classes

  - by Nima

  Hi, Let's say we have a class called A and another one called B. and we want to have a conversion method that converts A to B. In the software architecture point of view, which one is preferred? write A.export() write B.import() write a converter class, i.e. convert(A, B) or Convert(A) or ... if the language matters, I'm using C++ Thanks,

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• C++, how implicit conversion/constructor are determined?

  - by aaa

  hello How does C++ determine implicit conversion/construction of objects few levels deep? for example: struct A; struct B: A {}; struct C { operator B(); } void f(A a); f(C()); Does it create tree of all possible conversions and chooses appropriate terminal? Something else? Thanks

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• string patterns to PCRE conversion code

  - by ammasajan

  Hi all, I would like to know, is there a conversion library for converting string patterns to PCRE regular Expression patterns. Sample Patterns: application/ms-tnef ARKADMIN_GET_ 34 ^MAIL FROM|3a| ? 2| Thanks in advance.

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• blank to numeric conversion derived column

  - by praveen

  Hi All, I have a source column with blank (not "NULL"), and target as numeric. while converting using the data conversion it is not converting due to balnk source value so I used derived column to replace a blank value with NULL or 0 as (source column == " ") ? "0" : source column but its not giving the value as 0 in the blank place. thanks prav

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• Another warning question: "Incompatible intiger to pointer conversion assigning to 'int *' from 'int'"

  - by Preston

  I have yet another pesky warning I would like gone. Basically, I have an int declared like this: @property (nonatomic, assign) int *myInt; and set like this: myInt = 0;. It is also synthesized in the implementation file. I am getting a warning on the line where I set the int's value and it says "Incompatible intiger to pointer conversion assigning to 'int *' from 'int'." What should I do to fix this?

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• type conversion

  - by gcc

  why i couldnot make type conversion char *p; int l=65; these two didnot work ...why??? (int *)p=&l; or p=&((char) l);

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• Does Cocoa’s printf-style formatting not work as expected when using %@ conversion specifier and fie

  - by Nikolai Ruhe

  My understanding of printf-like format strings is that you can prefix any conversion specifier with a minimum field width. This does not seem to work for Cocoa’s %@ specifier. Example: NSLog(@"'%5@'", @"foo"); NSLog(@"'%5s'", [@"foo" UTF8String]); Output: … 'foo' … ' foo' Is this the intended behavior?

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• Change log4net conversion pattern or layout at runtime

  - by adam0101

  I'm using the LogInfo() method to log to a rolling flat file, but I need to change the conversion pattern or pattern layout (whatever you want to call it) temporarily when calling it in a certain circumstance. Is this possible?

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• Number conversion in Javascript

  - by Vafello

  I have a question concerning number conversion i JS. I have a number like 1613841.93424 (meters) and I would like it to convert to 1.6 km instead. What JS function should I use for that? Thanks.

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• Datatype Conversion

  - by user87

  I am trying to execute the following Query select distinct pincode as Pincode,CAST(Date_val as DATE) as Date, SUM(cast(megh_38 as int)) as 'Postage Realized in Cash', SUM(cast(megh_39 as int)) as 'MO Commission', from dbo.arrow_dtp_upg group by pincode,Date_Val but I am getting an error "Conversion failed when converting the nvarchar value '82.25' to data type int." Am I using a wrong data type?

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