大约有 1,315 项符合查询结果（耗时：0.0352秒） [XML]
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ere:
https://github.com/CarloWood/ai-statefultask-testsuite/blob/b69b112e2e91d35b56a39f41809d3e3de2f9e4b8/src/mutex_test.cxx
Note that it has a few hardcoded values specific for my box (xrange, yrange and rdtsc overhead), so you probably have to experiment with it before it will work for you.
The ...
Why would one use nested classes in C++?
...
John DiblingJohn Dibling
91.3k2424 gold badges166166 silver badges296296 bronze badges
...
Iterator invalidation rules
...dated, but iterators to elements remaining in a2 will remain valid. (Table 91 — Unordered associative container requirements)
Container Adaptors
stack: inherited from underlying container
queue: inherited from underlying container
priority_queue: inherited from underlying container
Erasure
Se...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ts an interface for a real-time data server.
/// </summary>
[Guid("EC0E6191-DB51-11D3-8F3E-00C04F3651B8")]
[TypeLibType(4160)]
public interface IRtdServer2
{
/// <summary>
/// Adds new topics from a real-time data server. The ConnectData method is called
/// when a file is op...
Is there a way to detect if an image is blurry?
...
FM = entropy(Image);
case 'HISR' % Histogram range (Firestone91)
FM = max(Image(:))-min(Image(:));
case 'LAPE' % Energy of laplacian (Subbarao92a)
LAP = fspecial('laplacian');
FM = imfilter(Image, LAP, 'replicate', 'conv');
FM = mean2(FM.^2);
...
How to automatically generate a stacktrace when my program crashes
...ets you this output:
$ ./test
Error: signal 11:
./test(handler+0x19)[0x400911]
/lib64/tls/libc.so.6[0x3a9b92e380]
./test(baz+0x14)[0x400962]
./test(bar+0xe)[0x400983]
./test(foo+0xe)[0x400993]
./test(main+0x28)[0x4009bd]
/lib64/tls/libc.so.6(__libc_start_main+0xdb)[0x3a9b91c4bb]
./test[0x40086a]
...
Git workflow and rebase vs merge questions
...CVonC
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27
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C dynamically growing array
...
@Balkania: 7 * 3264 * 32 bit sounds like 91.39 kilobytes. Not that much by any standard these days ;)
– Wolph
Aug 21 '10 at 3:57
1
...
How to calculate moving average using NumPy?
...± std. dev. of 7 runs, 100 loops each)
Numpy array rolling :
31.3 ms ± 91.9 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)
Numpy array rolling, edge handling :
61.1 ms ± 55.9 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)
Timing, Large window (n=1001)
Direct "for" loo...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...ommit 45e2ef2, commit 79b0edc, commit 840624f, commit 32a6707, commit 440bf91, commit 0b408ca, commit 2eabd38 (28 Oct 2019), and commit 1bcef51, commit ecde49b (05 Oct 2019) by brian m. carlson (bk2204).
(Merged by Junio C Hamano -- gitster -- in commit 28014c1, 10 Nov 2019)
t/oid-info: add em...