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Favorite (Clever) Defensive Programming Best Practices [closed]
... memory up-front provides you with a safety-net, as you can free it up and then use the available memory to do the following:
Save all the persistent data
Close all the appropriate files
Write error messages to a log file
Present a meaningful error to the user
...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
...0 processes are in complain mode.
If mysqld is included in enforce mode, then it is the one probably denying the write. Entries would also be written in /var/log/messages when AppArmor blocks the writes/accesses. What you can do is edit /etc/apparmor.d/usr.sbin.mysqld and add /data/ and /data/* ne...
Reuse Cucumber steps
...
Given /^I login successfully$/
Given "I login with valid credentials"
Then "I should be logged in"
end
If all of the scenarios within a feature require this (or other steps), you can also add a Background to each features, with the common steps, like so:
Background:
Given I log in with val...
How can you find the height of text on an HTML canvas?
... div with display: inline-block so I can set its vertical-align style, and then find out where the browser has put it.
So you get back an object with ascent, descent and height (which is just ascent + descent for convenience). To test it, it's worth having a function that draws a horizontal line:
...
How do you get git to always pull from a specific branch?
...oss all of your projects, including those you might work on in the future, then add it as a global config setting:
$ git config --global branch.master.remote origin
$ git config --global branch.master.merge refs/heads/master
...
How to amend several commits in Git to change author
...ilter-branch --env-filter 'if [ "$GIT_AUTHOR_EMAIL" = "incorrect@email" ]; then
GIT_AUTHOR_EMAIL=correct@email;
GIT_AUTHOR_NAME="Correct Name";
GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL;
GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"; fi' -- --all
(split across lines for clarity, but not ne...
Algorithm to return all combinations of k elements from n
... z *)
let rec maximize a b x =
if (choose a b ) <= x then a else maximize (a-1) b x
in
let rec iterate n x i = match i with
| 0 -> []
| i ->
let max = maximize n i x in
max :: iterate n (x - (choose max i)) (i-1)
in
...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...ber. For instance, if we assume that magicNumber is 2 (by way of example), then the sequence:
0.10 -> 0.20
is strongly mirrored by similar sequences:
0.09 -> 0.18
0.11 -> 0.22
In many cases, this will generate noticeable correlations in your game -- for instance, if you make successiv...
“#include” a text file in a C program as a char[]
...
The question was about C but in case someone tries to do it with C++11 then it can be done with only little changes to the included text file thanks to the new raw string literals:
In C++ do this:
const char *s =
#include "test.txt"
;
In the text file do this:
R"(Line 1
Line 2
Line 3
Line 4...
Any tips on how to organize Eclipse environment on multiple monitors?
...ll reset Eclipse's settings to the last closed window. I only did this one then switched to maximizing Eclipse across two monitors and splitting the code window into two, one for each monitor.
– Xonatron
Feb 9 '12 at 18:28
...