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What does “all” stand for in a makefile?
I read some tutorials concerning Makefiles but for me it is still unclear for what the target "all" stands for and what it does.
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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...s behavior.
Figure 1. Blocks for an App Inventor app that automatically reads the text message aloud when a new message arrives.
Figure 1 shows the blocks of a sample app that automatically reads the text messages aloud when a new text message arrives. Instead of implementing the event listeners...
Why would $_FILES be empty when uploading files to PHP?
... configured php.ini to allow file uploads and such. The tmp folder has read/write privileges for the current user. I'm stumped.
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What are the basic rules and idioms for operator overloading?
...ator
There's a lot to be said about assignment. However, most of it has already been said in GMan's famous Copy-And-Swap FAQ, so I'll skip most of it here, only listing the perfect assignment operator for reference:
X& X::operator=(X rhs)
{
swap(rhs);
return *this;
}
Bitshift Operators (...
What is the difference between 'typedef' and 'using' in C++11?
... some(1).
(1) In addition to the examples of alias templates, which has already been mentioned in the original post.
Same semantics
As governed by [dcl.typedef]/2 [extract, emphasis mine]
[dcl.typedef]/2 A
typedef-name
can also be introduced by an
alias-declaration.
The identifier following the us...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
I have been reading a lot of Javascript lately and I have been noticing that the whole file is wrapped like the following in the .js files to be imported.
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
... so make a note of them somewhere.
4. Change access level: You don't want read-only, do you?
If you want to make any decent use of this API, you'll need to change your settings to Read & Write if you're doing anything other than standard data retrieval using GET requests.
Choose the "Settings...
How to deal with a slow SecureRandom generator?
...or in securerandom.source in the java.security file, /dev/random/ is still read whenever SecureRandom.getSeed() (or setSeed() is called). The workaround with file:/dev/./urandom results in not reading /dev/random at all (confirmed with strace)
– matt b
Dec 16 '...
In Python, how do I use urllib to see if a website is 404 or 200?
... error (e.g. connection refused)
# ...
else:
# 200
body = resp.read()
Note that HTTPError is a subclass of URLError which stores the HTTP status code.
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How do I show the schema of a table in a MySQL database?
... looking to figure out the "db_name" part, and this solution assumes you already know that
– Antonio Ortells
Dec 20 '16 at 21:36
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