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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...
Validate that end date is greater than start date with jQuery
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Just expanding off fusions answer. this extension method works using the jQuery validate plugin. It will validate dates and numbers
jQuery.validator.addMethod("greaterThan",
function(value, element, params) {
if (!/Invalid|NaN...
Make JQuery UI Dialog automatically grow or shrink to fit its contents
...w taller. This can lead to a scenario where the main page has a scrollbar and the JQuery UI dialog has a scrollbar. This two-scrollbar scenario is unsightly and confusing for the user.
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What does multicore assembly language look like?
...that's needed is software support for each thread to set up its own tables and messaging queues. The OS uses those to do the actual multi-threaded scheduling.
As far as the actual assembly is concerned, as Nicholas wrote, there's no difference between the assemblies for a single threaded or multi ...
How can I run just the statement my cursor is on in SQL Server Management Studio?
...a long time Toad for Oracle user, I have gotten used to hitting Ctrl+Enter and having just the statement under the cursor be executed.
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Filtering fiddler to only capture requests for a certain domain
...s easy to do.
On the filters tab, click "show only if the filter contains, and then key in your domain.
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Why does the order in which libraries are linked sometimes cause errors in GCC?
...elaborate text, but I now think it's easier for the reader to see real command lines).
Common files shared by all below commands
$ cat a.cpp
extern int a;
int main() {
return a;
}
$ cat b.cpp
extern int b;
int a = b;
$ cat d.cpp
int b;
Linking to static libraries
$ g++ -c b.cpp -o b.o
$ a...
Can I redirect the stdout in python into some sort of string buffer?
... explicit save as I've done, since someone else could have replaced stdout and if you use stdout, you'd clobber their replacement.
– Ned Batchelder
Aug 2 '09 at 14:25
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Is it possible to use the SELECT INTO clause with UNION [ALL]?
... clause is invalid in views, inline functions, derived tables, subqueries, and common table expressions, unless TOP or FOR XML is also specified. ". Please give some solution.
– ShaileshDev
Mar 21 '17 at 11:27
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Can you get the column names from a SqlDataReader?
...nnames in lowercase. Column names in table are all uppercase like OBJECTID and reader is returning lowercase like objectid
– Muneem Habib
Nov 17 '15 at 11:30
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