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How to declare constant map
I am trying to declare to constant in Go, but it is throwing an error. Could anyone please help me with the syntax of declaring a constant in Go?
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Equivalent of “throw” in R
How does one "throw" an error in R? I have a function that takes a data frame and some column names and does stuff with them. If the columns don't exist, I want the function to stop and to stop all functions depending on it.
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How do I base64 encode (decode) in C?
...up() {
free(decoding_table);
}
Keep in mind that this doesn't do any error-checking while decoding - non base 64 encoded data will get processed.
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final keyword in method parameters [duplicate]
... you're required to declare it final --otherwise it will result in compile error--, namely passing them through into anonymous classes. Basic example:
public FileFilter createFileExtensionFilter(final String extension) {
FileFilter fileFilter = new FileFilter() {
public boolean accept(F...
How to empty a list?
...t mistake.
– aafulei
Sep 6 '19 at 2:05
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Circular list iterator in Python
...ions!
– Jacob Krall
May 1 '14 at 21:05
5
pool.next() didn't work for me, only next(pool). Probabl...
Compile time string hashing
..., Jacob's answer works fine for what I wanted on GCC but msvc was throwing errors with larger strings. Your answer works on msvc with the larger strings that I need to hash.
– Daniel Moodie
Jan 5 '17 at 23:40
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Is it possible to install another version of Python to Virtualenv?
...igure --prefix=/home/<user>/.localpython in fact make clean returned error. 2. virtualenv name -p=/python/path didn't worked instead virtualenv name -p /python/path did worked. I assume it's down to virtualenv version. cheers!
– zzart
Mar 26 '12 at 12:37...
Add up a column of numbers at the Unix shell
...:-)
– Greg Reynolds
Jun 1 '09 at 10:05
2
One bracket too much in @dmckee's answer :)
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Run cron job only if it isn't already running
...on job as a sort of watchdog for a daemon that I've created. If the daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do what I'm looking for...
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