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Regular Expression to find a string included between two characters while EXCLUDING the delimiters
I need to extract from a string a set of characters which are included between two delimiters, without returning the delimiters themselves.
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Is it better in C++ to pass by value or pass by constant reference?
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It used to be generally recommended best practice1 to use pass by const ref for all types, except for builtin types (char, int, double, etc.), for iterators and for function objects (lambdas, classes deriving from std::*_function).
This w...
ModelState.IsValid == false, why?
...e that 0 errors and IsValid == false": here's MVC source code from https://github.com/Microsoft/referencesource/blob/master/System.Web/ModelBinding/ModelStateDictionary.cs#L37-L41
public bool IsValid {
get {
return Values.All(modelState => modelState.Errors.Count == 0);
}
}
Now...
How to get a pixel's x,y coordinate color from an image?
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Building on Jeff's answer, your first step would be to create a canvas representation of your PNG. The following creates an off-screen canvas that is the same width and height as your image and has the image drawn on it.
va...
Automatically remove Subversion unversioned files
Does anybody know a way to recursively remove all files in a working copy that are not under version control? (I need this to get more reliable results in my automatic build VMware.)
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How to provide different Android app icons for different gradle buildTypes?
I have two build types set in my gradle file: debug and release . I'd like to be able to set a different app icon for the debug build type. Is there any way to this just through the build type, without getting into product flavors? build.gradle file is below.
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Different floating point result with optimization enabled - compiler bug?
... on Visual Studio 2008 with and without optimization. But it only works on g++ without optimization (O0).
7 Answers
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no acceptable C compiler found in $PATH when installing python
I'm trying to install new python environment on my shared hosting. I follow the steps written in this post :
11 Answers
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Guaranteed lifetime of temporary in C++?
Does C++ provide a guarantee for the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
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Add line break to ::after or ::before pseudo-element content
I do not have access to the HTML or PHP for a page and can only edit via CSS. I've been doing modifications on a site and adding text via the ::after or ::before pseudo-elements and have found that escape Unicode should be used for things such as a space before or after the added content.
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