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When would anyone use a union? Is it a remnant from the C-only days?
...hen you have very limited space to work with, or when you're developing an API (or something similar) and you want to force the end user to have only one instance of several objects/types at one time. Are these two guesses even close to right?
...
InputStream from a URL
...oupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-validator</groupId>
<artifactId>commo...
OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...射)
Win32下的通告消息
对于那些Windows 3.1的控件， Win32 API使用那些曾在Windows3.x有的绝大部分通告消息。However, Win32 also adds a number of sophisticated, complex controls to those supported in Windows 3.x.这些控件经常发送带附加数据的通告消息。设...
How can I change an element's text without changing its child elements?
...rst');
});
});
p {
margin: 0px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="testSubject">
**text to change**
<p>text that should not change</p>
<p>text that should not change</p>
**als...
Most useful NLog configurations [closed]
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How to use that custom renderer with the API (no config file)? Here's what I'm trying to accomplish.
– InteXX
Apr 19 '17 at 21:03
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How do you Encrypt and Decrypt a PHP String?
... with HMAC-SHA-256 (or, for the stream ciphers, Poly1305 -- most libsodium APIs do this for you). The MAC should cover the IV as well as the ciphertext!
Decryption:
Unless Poly1305 or GCM is used, recalculate the MAC of the ciphertext and compare it with the MAC that was sent using hash_equals(). ...
PostgreSQL: Which Datatype should be used for Currency?
...s of a cent.
Works for very small per-unit pricing (like ad impressions or API charges).
Smaller data size for storage than strings or numerics.
Easy to maintain accuracy through calculations and apply rounding at the final output.
...
Why are Oracle table/column/index names limited to 30 characters?
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@skaffman SQLERRM length is an API/ABI specification. Changing this would meaning having to patch every OCI driver on the planet (else buffer overrun). They could slot the change to the client to increase the buflen in OCI 13 first and the server in someth...
When to dispose CancellationTokenSource?
...ons using the handle are complete, because, as is described in the Windows API documentation for WaitHandle, the results are undefined.
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Pattern to avoid nested try catch blocks?
... here are just trying to be cute, IMO. As the OP said, he didn't write the API so he's stuck with the exceptions that are thrown.
– Nate C-K
Oct 18 '11 at 21:00
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