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How to get position of a certain element in strings vector, to use it as an index in ints vector?
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@Hiraku He did delete his comment. He suggested using ptrdiff_t because it lets you store the distance between any pair of iterators into the same container, even in situations when the result is negative. If we use size_t we must be car...
How would I get a cron job to run every 30 minutes?
...rontab does not understand "intervals", it only understands "schedule"
valid hours: 0-23 -- valid minutes: 0-59
example #1
30 * * * * your_command
this means "run when the minute of each hour is 30" (would run at: 1:30, 2:30, 3:30, etc)
example #2
*/30 * * * * your_command
this means "run whe...
How can I get the list of files in a directory using C or C++?
How can I determine the list of files in a directory from inside my C or C++ code?
26 Answers
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Install Gem from Github Branch?
... http://bundler.io/man/gemfile.5.html#GIT
Update: There's a github source identifier.
gem 'country_select', github: 'stefanpenner/country_select'
However, they warn against using it: NOTE: This shorthand should be avoided until Bundler 2.0, since it currently expands to an insecure git:// URL. T...
Generating a UUID in Postgres for Insert statement?
My question is rather simple. I'm aware of the concept of a UUID and I want to generate one to refer to each 'item' from a 'store' in my DB with. Seems reasonable right?
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What is the difference between D3 and jQuery?
... is not: with jQuery you directly manipulate elements, but with D3 you provide data and callbacks through D3's unique data(), enter() and exit() methods and D3 manipulates elements.
D3 is usually used for data visualization but jQuery is used for creating web apps. D3 has many data visualization ext...
How to copy yanked text to VI command prompt
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
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Jackson JSON custom serialization for certain fields
...s IntToStringSerializer extends JsonSerializer<Integer> {
@Override
public void serialize(Integer tmpInt,
JsonGenerator jsonGenerator,
SerializerProvider serializerProvider)
throws IOException, JsonProces...
What does the question mark in Java generics' type parameter mean?
...en the only thing you can pass in is a List<HasWord>.
However, if said signature was List<? extends HasWord> then you could pass in a List<ChildOfHasWord> instead.
Note that there is a subtle difference between List<? extends HasWord> and List<? super HasWord>. As Jo...
How can I get maven-release-plugin to skip my tests?
...h I could vote you 2 up. I spent hours trying to get this right... but 1. Did I miss something in the documentation or is the mvn documentation missing something ? 2. I had <skipTests>true</skipTests> configured in my company POM. Still did not work. What worked was your solution.
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