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How can I combine hashes in Perl?
...both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
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How to cast int to enum in C++?
How do I cast an int to an enum in C++?
5 Answers
5
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Android onCreate or onStartCommand for starting service
Usually when I create an Android service I implement the onCreate method, but in my last project this does not work. I tried implementing onStartCommand , and this seems to work.
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
... of power functions (and others). C++11 [c.math] /11 states, after listing all the float/double/long double overloads (my emphasis, and paraphrased):
Moreover, there shall be additional overloads sufficient to ensure that, if any argument corresponding to a double parameter has type double or an...
How do I enable gzip compression when using MVC3 on IIS7?
Does anybody know how to enable gzip compression in MVC 3? I'm using IIS7.
3 Answers
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HMAC-SHA1 in bash
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I realise this isn't exactly what you're asking for, but there's no point in reinventing the wheel and writing a bash version.
You can simply use the openssl command to generate the hash within your script.
[me@home] echo -n "value" | openssl dgst -sha1 -hmac...
How do Third-Party “tracking cookies” work?
I have read this question here:
How Do Internet Advertisers Use Third-Party Cookies?
on how third-party tracking cookies work, but am still very confused.
I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, a...
What's the difference between deadlock and livelock?
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All the content and examples here are from
Operating Systems: Internals and Design Principles
William Stallings
8º Edition
Deadlock: A situation in which two or more processes are unable to proceed because each is waiting ...
How do I check the difference, in seconds, between two dates?
...y so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary.
5 A...
How to add to an existing hash in Ruby
In regards to adding an key => value pair to an existing populated hash in Ruby, I'm in the process of working through Apress' Beginning Ruby and have just finished the hashes chapter.
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