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Python - Create a list with initial capacity
...ook 118.00003051757812 ms
prealloc_array_by_extending took 102.99992561340332 ms
prealloc_array took 3.000020980834961 ms
prealloc_array took 49.00002479553223 ms
prealloc_array took 316.9999122619629 ms
prealloc_array took 473.00004959106445 ms
prealloc_array took 1677.9999732971191 ms
prealloc_arr...
Performing Breadth First Search recursively
...
answered Mar 31 '10 at 2:32
TanzelaxTanzelax
4,75022 gold badges2323 silver badges2828 bronze badges
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adding multiple entries to a HashMap at once in one statement
...
32
You should not use this method. It creates a new class for every time that you use it, which has much worse performance than just plainly c...
How to play audio?
...
@user3293156 This method supports the same formats as HTML5’s <audio>. Wikipedia has a audio format compatibility table. new Audio() can play WAV files in all browsers except Internet Explorer.
– Rory...
Unique Constraint in Entity Framework Code First
...10/03/…
– Nathan
Jan 15 '14 at 16:32
3
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SQL Server: Query fast, but slow from procedure
...ript of the slow and fast versions of the stored procedure:
dbo.ViewOpener__RenamedForCruachan__Slow.PRC
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO
CREATE PROCEDURE dbo.ViewOpener_RenamedForCruachan_Slow
@SessionGUID uniqueidentifier
AS
SELECT *
FROM Report_Opener_RenamedForCruacha...
Resolve build errors due to circular dependency amongst classes
...knows about upfront - pointers and references, for example, will always be 32 or 64 bits (depending on the architecture) and so if you replaced (either one) by a pointer or reference, things would be great. Let's say we replace in A:
// file: A.h
class A {
// both these are fine, so are various c...
Get file version in PowerShell
... That's actually not right. Look at get-item C:\Windows\System32\ubpm.dll | % VersionInfo | fl * -force and compare the FilePrivatePart to the last part of the FileVersion. The FileVersion shows what originally shipped, and not the patched version. This command, on the other hand, show...
VS2005中SetUnhandledExceptionFilter函数应用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...nFilter()
{
void *addr = (void*)GetProcAddress(LoadLibrary(_T("kernel32.dll")),
"SetUnhandledExceptionFilter");
if (addr)
{
unsigned char code[16];
int size = 0;
code[size++] = 0x33;
co...
Create a temporary table in a SELECT statement without a separate CREATE TABLE
...x to your temporary table do:
CREATE TEMPORARY TABLE IF NOT EXISTS
temp_table ( INDEX(col_2) )
ENGINE=MyISAM
AS (
SELECT col_1, coll_2, coll_3
FROM mytable
)
It also works with PRIMARY KEY
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