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Is std::vector so much slower than plain arrays?
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Using the following:
g++ -O3 Time.cpp -I <MyBoost>
./a.out
UseArray completed in 2.196 seconds
UseVector completed in 4.412 seconds
UseVectorPushBack completed in 8.017 seconds
The whole thing completed in 14.626 seconds
So array is...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
In JDK 8 with lambda b93 there was a class java.util.stream.Streams.zip in b93 which could be used to zip streams (this is illustrated in the tutorial Exploring Java8 Lambdas. Part 1 by Dhananjay Nene ). This function :
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Why does Vim save files with a ~ extension?
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answered Mar 3 '09 at 18:04
TomalakTomalak
294k6060 gold badges474474 silver badges577577 bronze badges
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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Response.Redirect with POST instead of Get?
...nd a response (to the browser that made the request) with HTTP Status Code 302, which tells the browser where to go next. By definition, the browser will make that via a GET request, even if the original request was a POST.
Another option is to use HTTP Status Code 307, which specifies that the br...
Get second child using jQuery
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356
grab the second child:
$(t).children().eq(1);
or, grab the second child <td>:
$(t).c...
When and why to 'return false' in JavaScript?
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answered May 12 '09 at 23:18
Chris Jester-YoungChris Jester-Young
200k4444 gold badges362362 silver badges409409 bronze badges
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How to use Oracle ORDER BY and ROWNUM correctly?
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answered Feb 26 '13 at 14:41
Gordon LinoffGordon Linoff
1015k4747 gold badges433433 silver badges554554 bronze badges
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Comparing object properties in c# [closed]
...ummary>
/// <see cref="http://stackoverflow.com/questions/2442534/how-to-test-if-type-is-primitive"/>
public static bool IsSimpleType(
this Type type)
{
return
type.IsValueType ||
type.IsPrimitive ||
new[]
{...
Finding most changed files in Git
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answered Feb 5 '16 at 13:11
AsenarAsenar
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