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Why catch and rethrow an exception in C#?
...way that the code in the article does it is evil. throw ex will reset the call stack in the exception to the point where this throw statement is; losing the information about where the exception actually was created.
Second, if you just catch and re-throw like that, I see no added value, the code e...
How to read the content of a file to a string in C?
... 0, SEEK_END);
length = ftell (f);
fseek (f, 0, SEEK_SET);
buffer = malloc (length);
if (buffer)
{
fread (buffer, 1, length, f);
}
fclose (f);
}
if (buffer)
{
// start to process your data / extract strings here...
}
...
How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
...
By default, all your db queries will be logged already in test mode. They'll be in log/test.log.
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How to hide action bar before activity is created, and then show it again?
...tActionBar().hide();
setContentView(R.layout.splash); // be sure you call this AFTER requestFeature
This creates the ActionBar and immediately hides it before it had the chance to be displayed.
But now there is another problem. After putting windowActionBar="false" in the theme, the Activity...
Which access modifiers are implied when not specified?
For all of the different concepts that support access modifiers, such as fields, properties, methods and classes, which access modifiers are implied if not specified?
...
100% Min Height CSS layout
...prevent
#container from scaling, this will work even if (or rather especially when) #content forces #container to become longer.
Padding-bottom
Since it is no longer in the normal flow, padding-bottom of #content
now provides the space for the absolute #footer. This padding is
inclu...
MySQL, better to insert NULL or empty string?
...are optional while some are mandatory. In my DB I have a table which holds all these values, is it better practice to insert a NULL value or an empty string into the DB columns where the user didn't put any data?
...
getting date format m-d-Y H:i:s.u from milliseconds
...
I generally opt for the second form as it's easier to read and understand. Additionally, DateTime is far more flexible and robust than the date/time functions. Handling microseconds is a case-in-point.
– Herber...
Why are variables “i” and “j” used for counters?
...
It comes ultimately from mathematics: the summation notation traditionally uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation):
It's also used that way for collections of things, like if you have a bunch of variables x1, x2, ......
Find the extension of a filename in Ruby
...
That's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? ...