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How do I export UIImage array as a movie?
...geCompatibilityKey,
[NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey,
nil];
CVPixelBufferRef pxbuffer = NULL;
CVReturn status = CVPixelBufferCreate(kCFAllocatorDefault, frameSize.width,
frameSize.height, kCVPixelFormatType_32ARGB, (CFDictio...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...cket error 10091 - Network subsystem is unavailable
Socket error 10092 - WINSOCK.DLL version out of range
Socket error 10093 - Successful WSAStartup not yet performed
Socket error 10094 - Graceful shutdown in progress
Socket error 11001 - Host not found
Socket error 11002 - Non-authoritati...
An efficient way to transpose a file in Bash
...so it'd handle empty fields and it coincidentally pretties-up the output a bit for this particular case.
$ cat tst.awk
BEGIN { FS=OFS="\t" }
{
for (rowNr=1;rowNr<=NF;rowNr++) {
cell[rowNr,NR] = $rowNr
}
maxRows = (NF > maxRows ? NF : maxRows)
maxCols = NR
}
END {
f...
Throw an error in a MySQL trigger
...
Laurel
5,3621010 gold badges2323 silver badges4545 bronze badges
answered Aug 1 '08 at 13:02
JustinJustin
...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
...
The readability of scalatest is a major winning point over scala specs for me.
– nemoo
Jan 20 '14 at 9:07
add a comment
|...
How many files can I put in a directory?
...
It depends a bit on the specific filesystem in use on the Linux server. Nowadays the default is ext3 with dir_index, which makes searching large directories very fast.
So speed shouldn't be an issue, other than the one you already noted,...
What are the differences between NP, NP-Complete and NP-Hard?
... two colours so that no edge is monochromatic?
Algorithm: start with an arbitrary vertex, color it red and all of its neighbours blue and continue. Stop when you run out of vertices or you are forced to make an edge have both of its endpoints be the same color.
NP
NP is a complexity class that ...
Detect if a NumPy array contains at least one non-numeric value?
...ny()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" % timeit.Timer(m, s).timeit(1000), m
Results:
0.11 s num...
jQuery Validate - Enable validation for hidden fields
...
So I'm going to go a bit deeper in to why this doesn't work because I'm the kind of person that can't sleep at night without knowing haha. I'm using jQuery validate 1.10 and Microsoft jQuery Unobtrusive Validation 2.0.20710.0 which was published...
Best way to replace multiple characters in a string?
...ce('&', '\&').replace('#', '\#').
Timings for each function:
a) 1000000 loops, best of 3: 1.47 μs per loop
b) 1000000 loops, best of 3: 1.51 μs per loop
c) 100000 loops, best of 3: 12.3 μs per loop
d) 100000 loops, best of 3: 12 μs per loop
e) 100000 loops, best of 3: 3.27 μs per loo...