大约有 2,196 项符合查询结果（耗时：0.0140秒） [XML]
How to get JSON response from http.Get
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@NamGVU saves a potential allocation and allows the use of http keep-alive to reuse connections.
– Connor Peet
Nov 27 '17 at 22:16
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Do you need to dispose of objects and set them to null?
...t will still release the unmanaged resources. This means that instead of deallocating the resources when it should be done, it will be deferred to when the garbage collector finalizes the managed object. It can still cause many other issues though (such as unreleased locks). You should Dispose an ID...
What XML parser should I use in C++? [closed]
...is painful for writing XML. It requires you to do a lot of explicit memory allocation of string names in order to build its DOM. It does provide a kind of string buffer, but that still requires a lot of explicit work on your end. It's certainly functional, but it's a pain to use.
It uses the MIT lic...
What is the “FS”/“GS” register intended for?
...d offset on every pointer. By contrast, if one is willing to round memory allocations up to multiples of 16 bytes, 8086-style segmentation allows one to use the segment alone as a means of identifying an object. Rounding allocations up to 16 bytes might have been slightly irksome in 1980, but woul...
How do I choose grid and block dimensions for CUDA kernels?
...e actual grid size needed, based on input size
int* h_vec1 = (int*) malloc(N*sizeof(int));
int* h_vec2 = (int*) malloc(N*sizeof(int));
int* h_vec3 = (int*) malloc(N*sizeof(int));
int* h_vec4 = (int*) malloc(N*sizeof(int));
int* d_vec1; cudaMalloc((void**)&d_vec1, N*sizeof(...
Initialise a list to a specific length in Python [duplicate]
...on at PyCon 2012, Raymond Hettinger is suggesting to use [None] * n to pre-allocate the length you want.
Slides available as PPT or via Google
The whole slide deck is quite interesting.
The presentation is available on YouTube, but it doesn't add much to the slides.
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What's the difference between `=` and `
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which is supposed to test whether or not x[1] is less than -2 but ends
up allocating 2 to x[1], erasing its current value! Note also that using
> if (x[1]=-2) ...
mistakenly instead of (x[1]==-2) has the same consequence."
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How to clear stringstream? [duplicate]
...ving things that are inherently slow like resizing/destructing dynamically allocated containers, where it would be the height of folly to do the less clear thing for the sake of some theoretical micro-optimization.
– T.E.D.
Sep 7 '15 at 16:47
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R.exe, Rcmd.exe, Rscript.exe and Rterm.exe: what's the difference?
....exe and Rterm.exe - Rterm.exe is compiled with /LARGEADDRESSAWARE and can allocate 4 GB RAM when run under Windows 64 bit, unlike R.exe (we're talking about 32 bit R running under 64 bit Windows). Why would the R people do this only for Rterm.exe and not for R.exe, if Rterm.exe is obsolete?
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“Collection was mutated while being enumerated” on executeFetchRequest
...antiate the background moc
self.backgroundMOC = [[[NSManagedObjectContext alloc] init] autorelease];
[self.backgroundMOC setPersistentStoreCoordinator:[self.managedObjectContext persistentStoreCoordinator]];
...in the _importData method (just before to register the controller as observer for the...