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What is the difference between char * const and const char *?
... @supercat (oh, C-only, sorry for the C++ code link, I got here from a C++ question) It's all about the C declaration syntax, with a ("pure") type part followed by a declarator. In "int const *foo, *volatile bar" the type part is int const (stops before the *) and the declarators are *foo...
Uses for Optional
...StuartMarks, this is one of the things that just baffles me when I hear it from all the Optional<> experts: "don't store Optional<> in a field". I'm truly trying to understand the point of this recommendation. Consider a DOM tree where a node could have a parent or not. It seems within t...
How to detect DIV's dimension changed?
...like the following. Since, the majority of element size changes will come from the window resizing or from changing something in the DOM. You can listen to window resizing with the window's resize event and you can listen to DOM changes using MutationObserver.
Here's an example of a function that...
What's the difference between equal?, eql?, ===, and ==?
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As I understand from your answer, the strictness is: equal? < eql? < == < ===. Normally, you use ==. For some loose purposes, you use ===. For strict situation, you use eql?, and for complete identity, you use equal?.
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How to upgrade rubygems
...brilliant Thanks for this one. I only added --force to keep the automation from stopping for overwrite confirmation
– SaxDaddy
Aug 9 '16 at 13:59
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How to create strings containing double quotes in Excel formulas?
...ing
Quote = Chr(34) & inputText & Chr(34)
End Function
This is from Sue Mosher's book "Microsoft Outlook Programming". Then your formula would be:
="Maurice "&Quote("Rocket")&" Richard"
This is similar to what Dave DuPlantis posted.
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Check if list is empty in C# [closed]
I have a list of objects populated from a database. I need to display an error message if the list is empty and display a grid view otherwise.
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Round a Floating Point Number Down to the Nearest Integer?
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The output from math.trunc is an integer, while the output of math.floor is a float.
– evedovelli
Nov 29 '13 at 15:33
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PANIC: Broken AVD system path. Check your ANDROID_SDK_ROOT value [D:\A...
报错如下：PANIC: Broken AVD system path. Check your ANDROID_SDK_ROOT value [D:\APPinventor\AppInventor2\resources\app.asar.unpacked\Emulator\from-Android-SDK]!
Jackson - Deserialize using generic class
...etting the following error - cannot access private java.lang.class.Class() from java.lang.class. Failed to set access. Cannot make a java.lang.Class constructor accessible
– gnjago
Jul 26 '12 at 19:46
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