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Undefined reference to vtable
...nswered Jun 17 '10 at 20:06
Alexandre HamezAlexandre Hamez
6,34322 gold badges2525 silver badges3434 bronze badges
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Replace all elements of Python NumPy Array that are greater than some value
I have a 2D NumPy array and would like to replace all values in it greater than or equal to a threshold T with 255.0. To my knowledge, the most fundamental way would be:
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How to set warning level in CMake?
...ct (not the whole solution) using CMake ? Should work on Visual Studio and GCC .
6 Answers
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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...ates one of your constraints, you should remove the constraint immediately and call setNeedsUpdateConstraints. In fact, that’s the only case where you should have to trigger a constraint update pass.
In addition, in my experience, I have never had to invalidate constraints, and not set the setNe...
Copying PostgreSQL database to another server
...o a remote host.
With a big database or a slow connection, dumping a file and transfering the file compressed may be faster.
As Kornel said there is no need to dump to a intermediate file, if you want to work compressed you can use a compressed tunnel
pg_dump -C dbname | bzip2 | ssh remoteuser@...
In PHP, can you instantiate an object and call a method on the same line?
...atures in PHP 5.4:
http://php.net/manual/en/migration54.new-features.php
And the relevant part from the new features list:
Class member access on instantiation has been added, e.g. (new Foo)->bar().
share
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Why do I get a warning icon when I add a reference to an MEF plugin project?
...test the core class of a plugin by directly referencing the plugin project and instantiating the plugin class. When I create a test Console App project and add a project reference to the plugin project, I get a warning icon (yellow triangle with exclamation mark) next to the reference in the Referen...
How to loop over files in directory and change path and add suffix to filename
...t files, or all files in /Data? Here's an answer, assuming /Data/data1.txt and .txt files only:
#!/bin/bash
for filename in /Data/*.txt; do
for ((i=0; i<=3; i++)); do
./MyProgram.exe "$filename" "Logs/$(basename "$filename" .txt)_Log$i.txt"
done
done
Notes:
/Data/*.txt expand...
Example images for code and mark-up Q&As [closed]
... in this answer. It includes a Java based interface that defines the URLs and makes them easy to access.
Details: 32x32 pixel PNG (4 colors x 5 shapes) with partial transparency (along the edges).
Categories: png icons
Sprite...
Using mixins vs components for code reuse in Facebook React
I'm beginning to use Facebook React in a Backbone project and so far it's going really well.
However, I noticed some duplication creeping into my React code.
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