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自动生成Linux下Makefile全攻略（automake原理） - C/C++ - 清泛网 - 专注C/C++及内核技术
...dubious syntactic constructs (default)
`unsupported' unsupported or incomplete features (default)
`all' all the warnings
`no-CATEGORY' turn off warnings in CATEGORY
`none' turn off all the warnings
`error' treat warnings as errors
Files which are auto...
HTML Script tag: type or language (or omit both)?
...l" xml:lang="en" lang="en">
<head>
<script src="http://example.com/test.js"></script>
</head>
<body/>
</html>
You will be informed of the following error:
Line 4, Column 41: required attribute "type" not specified
So if you're a fan of standards, use it...
Is it possible in Java to access private fields via reflection [duplicate]
... Coding Guidelines Version 2.0 for the Java Programming Language: java.sun.com/security/seccodeguide.html )
– Tom Hawtin - tackline
Oct 12 '09 at 18:03
11
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How to implement a rule engine?
...
This snippet compiles the Rules into fast executable code (using Expression trees) and does not need any complicated switch statements:
(Edit : full working example with generic method)
public Func<User, bool> CompileRule(Rule r)
{
...
How to stop and restart memcached server?
How to stop and restart memcached server 1.4.5 in linux OS from command line?
12 Answers
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How to generate a random number between a and b in Ruby?
....9.3 Kernel#rand also accepts ranges
rand(a..b)
http://www.rubyinside.com/ruby-1-9-3-introduction-and-changes-5428.html
Converting to array may be too expensive, and it's unnecessary.
(a..b).to_a.sample
Or
[*a..b].sample
Array#sample
Standard in Ruby 1.8.7+.
Note: was named #choice ...
How to dismiss ViewController in Swift?
...tionController?.popViewController(animated: true)
dismiss(animated: true, completion: nil)
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Run ssh and immediately execute command [duplicate]
I'm trying to find UNIX or bash command to run a command after connecting to an ssh server. For example:
3 Answers
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Error-Handling in Swift-Language
...g this way you do not get the error object.
Which means that you can also combine try? with useful statements like:
if let dragon = try? summonDefaultDragon()
or
guard let dragon = try? summonDefaultDragon() else { ... }
Finally, you can decide that you know that error will not actually occur...