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How do I get the directory that a program is running from?
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if they launch using an aliased command on Linux is the argv[0] the "name of the command" or expanded?
– Andy Dent
Aug 4 '10 at 8:16
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How to determine if a list of polygon points are in clockwise order?
...y checking the ordering, you don't need to bother dividing by 2.
Sources: http://mathworld.wolfram.com/PolygonArea.html
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How do I tidy up an HTML file's indentation in VI?
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From chovy.com/web-development/fix-indentation-and-tabs-in-vim found that I needed to reload the file with :e after filetype indent on.
– Marc Stober
May 17 '12 at 1:06
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Read only the first line of a file?
...fault encoding used is platform-dependent (and may differ even on the same computer depending upon how you launch Python - for instance, I have seen code that worked at my normal shell by assuming UTF-8 later explode when run through Apache with mod_wsgi).
– Mark Amery
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Getting the name of a child class in the parent class (static context)
...ot possible. in php4 you could implement a terrible hack (examine the debug_backtrace()) but that method does not work in PHP5. references:
30423
37684
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edit: an example of late static binding in PHP 5.3 (mentioned in comments). note there are potential problems in it's current implementat...
Which is more preferable to use: lambda functions or nested functions ('def')?
...orted(['a1', 'b0'], key= lambda x: int(x[1]))
– Chris_Rands
Apr 9 '18 at 12:09
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How do I migrate a model out of one django app and into a new one?
...on and specific:
myproject/
|-- common
| |-- migrations
| | |-- 0001_initial.py
| | `-- 0002_create_cat.py
| `-- models.py
`-- specific
|-- migrations
| |-- 0001_initial.py
| `-- 0002_create_dog.py
`-- models.py
Now we want to move model common.models.cat to specif...
Showing empty view when ListView is empty
...ml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- the android:id is important -->
<ListVie...
Passing variable number of arguments around
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To pass the ellipses on, you have to convert them to a va_list and use that va_list in your second function. Specifically;
void format_string(char *fmt,va_list argptr, char *formatted_string);
void debug_print(int dbg_lvl, char *fmt, ...)
{
char formatted_string[MAX_FMT_SI...