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How to check for the type of a template parameter?
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Use is_same:
#include <type_traits>
template <typename T>
void foo()
{
if (std::is_same<T, animal>::value) { /* ... */ } // optimizable...
}
Usually, that's a totally unworkable design, though, and you really want...
Why are Docker container images so large?
I made a simple image through Dockerfile from Fedora (initially 320 MB).
8 Answers
8
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Anonymous recursive PHP functions
...e and anonymous? This is my attempt to get it to work, but it doesn't pass in the function name.
6 Answers
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Multiple submit buttons in an HTML form
Let's say you create a wizard in an HTML form. One button goes back, and one goes forward. Since the back button appears first in the markup when you press Enter , it will use that button to submit the form.
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REST response code for invalid data
What response code should be passed to client in case of following scenarios?
4 Answers
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How to change cursor from pointer to finger using jQuery?
...easy, but I've never done it before. How do you change your cursor to the finger (like for clicking on links) instead of the regular pointer?
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Twitter bootstrap float div right
What is the proper way in bootstrap to float a div to the right? I thought pull-right was the recommend way, but it is not working.
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Why can't the tag contain a tag inside it?
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An authoritative place to look for allowed containment relations is the HTML spec. See, for example, http://www.w3.org/TR/html4/sgml/dtd.html. It specifies which elements are block elements and which are inline. For those lists, search for the section marked "HTML content ...
git shallow clone (clone --depth) misses remote branches
After cloning a remote repository it does not show any remote branch by -a option. What could be the problem? How to debug it? In this snippet two of the remote branches are not shown:
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Copying files from one directory to another in Java
I want to copy files from one directory to another (subdirectory) using Java. I have a directory, dir, with text files. I iterate over the first 20 files in dir, and want to copy them to another directory in the dir directory, which I have created right before the iteration.
In the code, I want to c...