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Where should Rails 3 custom validators be stored?
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@Doug you need to restart your server. The autoload paths are expanded on initialization so new subfolders will not get picked up until you do that.
– Timo
Oct 8 '12 at 23:36
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Fastest way to count exact number of rows in a very large table?
...nsaction has to "obtain a ticket" for updating its count. So transactions start queueing up at the ticket machine (the scheduler deciding who will be the next to get a lock on the counts table).
– Erwin Smout
Apr 8 '19 at 12:32
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String representation of an Enum
...t an enum. I can imagine that causing some interesting problems if people start trying to compare AuthenticationMethods. You probably need to overload various equality operators too.
– Ant
Feb 25 '10 at 9:18
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Should I use char** argv or char* argv[]?
...u declared a pointer or an array there - both will be taken as a pointer). Starting with C99, you can benefit from declaring it as an array. The following says: "p is always non-null and points to a region with at least 100bytes": void f(char p[static 100]); Note that type-wise, however, p is still...
Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
...t?
Modern computer programs are produced through a series of conversions, starting with the input of a human-readable body of text instructions (called "source code") and ending with a computer-readable body of instructions (called alternatively "binary" or "machine code").
The way that a computer...
How to generate a random int in C?
...worst would break the generator's known qualities. This is a deep subject. Start with reading Knuth Vol 2 Chapter 3 on random numbers as the best introduction to the mathematics and pitfalls.
– RBerteig
Oct 3 '12 at 21:15
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How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?
...d solution in the Java world that is internationalization friendly that we start a project on, e.g., GitHub and create a good solution. Let me know if you're interested.
– Greg Mattes
Apr 7 '18 at 13:56
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How to stop IntelliJ truncating output when I run a build?
...r use idea.cycle.buffer.size=disabled
idea.cycle.buffer.size=1024
then restart IntelliJ.
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Do you use source control for your database items? [closed]
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You should never just log in and start entering "ALTER TABLE" commands to change a production database. The project I'm on has database on every customer site, and so every change to the database is made in two places, a dump file that is used to create a n...
How do I parse command line arguments in Java?
...Usage Scenarios" page for the Apache CLI project, detailing how to quickly start using it: commons.apache.org/cli/usage.html
– Brad Parks
Dec 3 '12 at 14:48
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