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Why should we typedef a struct so often in C?
...case, you cannot return the Point by value, since its definition is hidden from users of the header file. This is a technique used widely in GTK+, for instance.
UPDATE Note that there are also highly-regarded C projects where this use of typedef to hide struct is considered a bad idea, the Linux ke...
What is Weak Head Normal Form?
...general that every subexpression will be needed, expressions are evaluated from the outside in.
(GHC has a strictness analyzer that will detect some situations where a subexpression is always needed and it can then evaluate it ahead of time. This is only an optimization, however, and you should not...
Kiosk mode in Android
...ction.BOOT_COMPLETED intent in a BroadcastReceiver and start your Activity from there. In the Activity you can register yourself as the new default homescreen[1] and handle the keys.
I think there are some instances that you can't handle without modifying the framework (like longpress on Home to s...
Can I see changes before I save my file in Vim?
...ng the file to the command (on stdin). In the command, - tells it to read from stdin.
– chaos
Oct 7 '13 at 16:15
14
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Laravel requires the Mcrypt PHP extension
...If it's not then check where the command line is loading your php.ini file from by running php --ini from your terminal.
In this php.ini file you can enable the extension.
OSX
I have heard of people on OSX running in to problems due to the terminal pointing to the native PHP shipped with OSX. You...
Only using @JsonIgnore during serialization, but not deserialization
I have a user object that is sent to and from the server. When I send out the user object, I don't want to send the hashed password to the client. So, I added @JsonIgnore on the password property, but this also blocks it from being deserialized into the password that makes it hard to sign up users...
conversion from string to json object android
...
To get a JSONObject or JSONArray from a String I've created this class:
public static class JSON {
public Object obj = null;
public boolean isJsonArray = false;
JSON(Object obj, boolean isJsonArray){
this.obj = obj;
th...
Get a list of all git commits, including the 'lost' ones
...
indeed. probably the easiest way to recover from that situation will be to look at the reflog for HEAD itself.
– araqnid
Jan 24 '11 at 21:29
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Remove all classes that begin with a certain string
...ve a div with id="a" that may have any number of classes attached to it, from several groups. Each group has a specific prefix. In the javascript, I don't know which class from the group is on the div. I want to be able to clear all classes with a given prefix and then add a new one. If I want to ...
OAuth secrets in mobile apps
When using the OAuth protocol, you need a secret string obtained from the service you want to delegate to. If you are doing this in a web app, you can simply store the secret in your data base or on the file system, but what is the best way to handle it in a mobile app (or a desktop app for that mat...