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Using member variable in lambda capture list inside a member function
...ery access to grid actually happens as this->grid in member functions). For your usecase, capturing this works, since you'll use it right away and you don't want to copy the grid
auto lambda = [this](){ std::cout << grid[0][0] << "\n"; }
If however, you want to store the grid and c...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
..., there is a significant difference between when you would want to use the former and when you want to use the latter.
Simply put, you probably want a RuntimeError not an Exception. A rescue block without an argument will catch RuntimeErrors, but will NOT catch Exceptions. So if you raise an Excep...
How to add a new row to an empty numpy array
...s intended during the loop:
In [210]: %%timeit
.....: l = []
.....: for i in xrange(1000):
.....: l.append([3*i+1,3*i+2,3*i+3])
.....: l = np.asarray(l)
.....:
1000 loops, best of 3: 1.18 ms per loop
In [211]: %%timeit
.....: a = np.empty((0,3), int)
.....: for i in xrang...
JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...mirrored depending on which orientation is set, but browsers ignore this information rendering the image. Even in large commercial web apps, support for EXIF orientation can be spotty 1 . The same source also provides a nice summary of the 8 different orientations a JPEG can have:
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Can I assume (bool)true == (int)1 for any C++ compiler?
Can I assume (bool)true == (int)1 for any C++ compiler ?
4 Answers
4
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How to exclude a file extension from IntelliJ IDEA search?
...lude an extension use !*.java. You can give more detailed patterns as well for example I use the pattern below to only return .java files except those with a name starting or ending with test.
Pattern: !*test.java,*.java,!Test*.java
In recent versions of Intellij the GUI has been updated a bit bu...
Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
I've got this message warning on Netbeans 7.4 for PHP while I'm using $_POST , $_GET , $_SERVER , ....
5 Answers
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Signal handling with multiple threads in Linux
...hread when a signal is received? Let's say I wrote a custom signal handler for SIGUSR1, and now I'm sending that signal to the process. The root thread will get that signal. Maybe it's in the middle of some function at that moment. What is going to happen?
– user500944
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Handle file download from ajax post
...er of similar threads here but none of them provide the answer I'm looking for.
20 Answers
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Executing an EXE file using a PowerShell script
... Odd that the command in the original question, nearly exactly, works for me on a VM in PS2.0. But that same command now fails on PS4.0 system. Interestingly enough, I'm calling TestExecute also. I think I like option 2 best, I'll give that a shot, thanks!
– EJA
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