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Type erasure techniques
...oid>)> call;
call = reinterpret_cast<voidFun>(fun<std::string>);
call(std::make_shared<std::string>("Hi there!"));
call = reinterpret_cast<voidFun>(fun<int>);
call(std::make_shared<int>(33));
call = reinterpret_cast<voidFun>(fun&...
How to know the size of the string in bytes?
I'm wondering if I can know how long in bytes for a string in C#, anyone know?
3 Answers
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How do I view all commits for a specific day?
...ience!
The output below can be expanded/customised with pretty=format:<string> placeholders:
git log --pretty='format:%H %an %ae %ai' | grep 2013-11-12
Not 100% immune to errors as the same string could have been entered by a user. But acceptable depending on which placeholders are used. T...
How to change the pop-up position of the jQuery DatePicker control
...e bottom of the page and the DatePicker shifts up to account for it and totally covers the text box. If the user wants to type the date instead of pick it, they can't. I'd rather have it appear just after the text box so it doesn't matter how it adjusts vertically.
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Get connection string from App.config
...connection =
System.Configuration.ConfigurationManager.
ConnectionStrings["Test"].ConnectionString;
Your assembly also needs a reference to System.Configuration.dll
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Converting RGB to grayscale/intensity
...ly different numbers / different methods,
you won't see much difference at all on a normal computer screen
under normal lighting conditions -- try it.
Here are some more links on color in general:
Wikipedia Luma
Bruce Lindbloom 's outstanding web site
chapter 4 on Color in the book by Colin Wa...
Best practices: throwing exceptions from properties
...ing code that does. Even the simple act of allocating a new object (like a string) could result in exceptions. You should always write your code defensively and expect exceptions from anything you invoke.
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Groovy / grails how to determine a data type?
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To determine the class of an object simply call:
someObject.getClass()
You can abbreviate this to someObject.class in most cases. However, if you use this on a Map it will try to retrieve the value with key 'class'. Because of this, I always use getClass() even thou...
Check if string matches pattern
How do I check if a string matches this pattern?
6 Answers
6
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How to get first character of a string in SQL?
...th of 6. Now want to take only the first char of that column. Is there any string function in SQL to do this?
8 Answers
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