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What's the purpose of SQL keyword “AS”?
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There is no difference between both statements above. AS is just a more explicit way of mentioning the alias
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Peak memory usage of a linux/unix process
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Here's a one-liner that doesn't require any external scripts or utilities and doesn't require you to start the process via another program like Valgrind or time, so you can use it for any process that's already running:
grep VmPeak /proc/$PID/status
(replace $PID wit...
Get value from NSTextField
I have an NSTextField and I need to get the field's value into a variable. What's the appropriate method?
4 Answers
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Handler vs AsyncTask
...kground operations in my project. At some point I started reaching that max jobs limit, so my tasks would only start after another finished. In the end I had to change all my structure to stop using asynctasks and avoid reaching that limitation.
– tbraun
Feb ...
Encoding an image file with base64
...e doing something along the lines of:
import base64
with open("yourfile.ext", "rb") as image_file:
encoded_string = base64.b64encode(image_file.read())
You have to open the file first of course, and read its contents - you cannot simply pass the path to the encode function.
Edit:
Ok, here i...
Bash variable scope
Please explain to me why the very last echo statement is blank? I expect that XCODE is incremented in the while loop to a value of 1:
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Retrieve filename from file descriptor in C
Is it possible to get the filename of a file descriptor (Linux) in C?
7 Answers
7
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How to perform Single click checkbox selection in WPF DataGrid?
I have a DataGrid with first column as text column and second column as CheckBox column. What I want is, if I click the check box. It should get checked.
But, it takes two click to get selected, for first click the cell is getting selected, for the second clicks the check box is getting checked. ...
Can code that is valid in both C and C++ produce different behavior when compiled in each language?
... C++:
int i = sizeof('a');
See Size of character ('a') in C/C++ for an explanation of the difference.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(int) in C,
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SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/
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For RVM & OSX users
Make sure you use latest rvm:
rvm get stable
Then you can do two things:
Update certificates:
rvm osx-ssl-certs update all
Update rubygems:
rvm rubygems latest
For non RVM users
Find path for certificat...