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The Concept of 'Hold space' and 'Pattern space' in sed
I'm confused by the two concepts in sed: hold space and pattern space. Can someone help explain them?
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What exactly is nullptr?
...atures. An interesting and confusing one (at least for me) is the new nullptr .
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Get path of executable
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There is no cross platform way that I know.
For Linux: readlink /proc/self/exe
Windows: GetModuleFileName
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How to automatically generate a stacktrace when my program crashes
I am working on Linux with the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
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Calling C++ class methods via a function pointer
How do I obtain a function pointer for a class member function, and later call that member function with a specific object? I’d like to write:
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How do I interpret precision and scale of a number in a database?
I have the following column specified in a database: decimal(5,2)
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java.nio.file.Path for a classpath resource
Is there an API to get a classpath resource (e.g. what I'd get from Class.getResource(String) ) as a java.nio.file.Path ? Ideally, I'd like to use the fancy new Path APIs with classpath resources.
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Global variables in Javascript across multiple files
A bunch of my JavaScript code is in an external file called helpers.js. Inside the HTML that calls this JavaScript code I find myself in need of knowing if a certain function from helpers.js has been called.
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Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
Hibernate throws this exception during SessionFactory creation:
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How to download all files (but not HTML) from a website using wget?
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To filter for specific file extensions:
wget -A pdf,jpg -m -p -E -k -K -np http://site/path/
Or, if you prefer long option names:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted --n...