Perseids

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Perseids has asked 30 questions and find answers to 21 problems.

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Perseids questions

Can I create a macro which conditionally `goto`s and serves as an expression?
How do I get an instance of RSAPrivateKey
Download key with `gpg --recv-key` and simultaneously check fingerprint in a script
Can't catch "Prelude.read: no parse" exception with Control.Exception.try
Why is the n+1 selects pattern slow?
How to iterate over all byte values (overflowing_literals in `0..256`)
Why are iterators not copyable?
For loop over template arguments/types
Return a map iterator which is using a closure in Rust [duplicate]
Do Rust lifetimes influence the semantics of the compiled program?

Perseids answers

Is there a hash function to generate a hash with a given length?
Add Accept header to JQuery AJAX GET (via JSONP) request
How does SSH public key authentication work (picking up right keys)
RSA encryption output size
Download key with `gpg --recv-key` and simultaneously check fingerprint in a script
Can't catch "Prelude.read: no parse" exception with Control.Exception.try
Extract Key from a tr31 key block (exporting from HSM Thales 9000)
When should HSTS be enabled?
Run async code before entire mocha test
HTML5 offline authentication