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What is a “memory stomp”?
...at conflicts. There are several common ways memory can be stomped.
One is allocating, say, 100 bytes of memory but then storing something past the 100th address. This memory might be used to hold something completely different. This is particularly hard to debug because the problem will appear when...
How much faster is C++ than C#?
...d expect to get representative results (eg. performing thousands of memory allocations in C++ is going to give you terrible numbers.)
Instead, I wrote slightly more idiomatic C++ code and compared against the C# code @Wiory provided. The two major changes I made to the C++ code were:
1) used vect...
cancelling a handler.postdelayed process
...
Remove any pending posts of callbacks and sent messages whose obj is
token. If token is null, all callbacks and messages will be removed.
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Where are environment variables stored in registry?
... PATH /t REG_SZ /f /d "%PATH%"
::@REG QUERY %l_regpath% /v %1 /S
@FOR /F "tokens=*" %%A IN ('REG QUERY %l_regpath% /v %1 /S') DO (
@ set l_a=%%A
@ if NOT "!l_a!"=="!l_a: =!" set l_line=!l_a!
)
::delimiter is four spaces change it to tab \t
@set l_line=!l_line!
@set l_line=%l_line: = %
...
How to create a fixed-size array of objects
... initialize it with nil values, you can use an UnsafeMutableBufferPointer, allocate memory for 64 nodes with it, and then read/write from/to the memory by subscripting the pointer type instance. This also has the benefit of avoiding checking if the memory must be reallocated, which Array does. I wou...
What does the caret (‘^’) mean in C++/CLI?
...
// here normal pointer
P* ptr = new P; // usual pointer allocated on heap
P& nat = *ptr; // object on heap bind to native object
//.. here CLI managed
MO^ mngd = gcnew MO; // allocate on CLI heap
MO% rr = *mngd; // object on CLI heap reference to gc-lvalue
In general, the ...
Is it possible to make the -init method private in Objective-C?
...ect is used, don't bother. Specifically, don't bother with the "override +allocWithZone:, -init, -retain, -release" method of creating singletons. It's virtually always unnecessary and is just adding complication for no real significant advantage.
Instead, just write your code such that your +sha...
How can I get the sha1 hash of a string in node.js?
...')
shasum.update('foo')
shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33"
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JavaScript: client-side vs. server-side validation
...eous calls to check if unique; if unique, also reserve it with a temporary token assigned to the client that is also released if a different username is tested by the same session ID. The token should expire after a reasonable time. Example: TicketMaster seat reserve.
– Elaskan...
Javascript when to use prototypes
...eriting from a prototype. After that, it depends on how many instances you allocate of each type. But in many modular designs, there is only one instance of a given type.
And in fact, it has been suggested by many people that implementation inheritance is evil. That is, if there are some common ope...