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How to use enums in C++
...es themselves don't have members. What you wrote is the equivalent to std::string.clear. std::string is a type, so you can't use . on it. You use . on an instance of a class.
Unfortunately, enums are magical and so the analogy stops there. Because with a class, you can do std::string::clear to g...
Unnecessary curly braces in C++?
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The extra braces are used to define the scope of the variable declared inside the braces. It is done so that the destructor will be called when the variable goes out of scope. In the destructor, you may release a mutex (or any ot...
Are the shift operators () arithmetic or logical in C?
... of i, after integer promotion, be T. Assuming n to be in [0, sizeof(i) * CHAR_BIT) — undefined otherwise — we've these cases:
| Direction | Type | Value (i) | Result |
| ---------- | -------- | --------- | ------------------------ |
| Right (>>) | unsigned | ≥...
How to get current user, and how to use User class in MVC5?
...serId();
In the default template of MVC 5, user ID is a GUID stored as a string.
No best practice yet, but found some valuable info on extending the user profile:
Overview of Identity: https://devblogs.microsoft.com/aspnet/introducing-asp-net-identity-a-membership-system-for-asp-net-application...
Why split the tag when writing it with document.write()?
...s a valid escape sequence for /, so why not just use that instead of those string literal escapes for <? E.g. document.write('<script src=foo.js><\/script>');. Also, </script> is not the only character sequence that can close a <script> element. Some more info here: mathia...
Google Authenticator implementation in Python
...cret (it must be correct parameter for base64.b32decode()) - preferably 16-char (no = signs), as it surely worked for both script and Google Authenticator.
Use get_hotp_token() if you want one-time passwords invalidated after each use. In Google Authenticator this type of passwords i mentioned as b...
How can I override the OnBeforeUnload dialog and replace it with my own?
...saved changes!';
}
Here's a reference to this from Microsoft:
When a string is assigned to the returnValue property of window.event, a dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in...
Convert any object to a byte[]
...for the .Net platform
Binary Serialization
XML Serialization: Produces a string which is easily convertible to a byte[]
ProtoBuffers
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Should a retrieval method return 'null' or throw an exception when it can't produce the return value
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Whatever you do, I highly advise against the third option: Returning a string that says "WTF".
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Convert string to integer type in Go?
I'm trying to convert a string returned from flag.Arg(n) to an int . What is the idiomatic way to do this in Go?
5 Answe...