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'typeid' versus 'typeof' in C++
...t, which must be a pointer to an object of a class with virtual methods in order for RTTI (run-time type information) to be stored in the class. It can also give the compile time type of an expression or a type name, if not given a pointer to a class with run-time type information.
typeof is a GNU ...
Servlet for serving static content
...
Though in order to serve content from a folder outside the app (I use it to server a folder from the disk, say C:\resources) I modified the this row: this.basePath = getServletContext().getRealPath(getInitParameter("basePath")); And ...
Remove a symlink to a directory
...rk. Occasionally you need to run rm -rf folderName (without trailing /) in order to remove the symlink. Amazon Linux behaves this way under certain circumstances, for example.
– brandonscript
Oct 28 '13 at 20:05
...
What does “abstract over” mean?
...ly.
Scala allows you to abstract over type parameters, by allowing higher-order type parameters.
Scala allows you to abstract over data access patterns, by allowing you to create extractors.
Scala allows you to abstract over "things that can be used as something else", by allowing implicit conver...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...ot know the original author.
The FXSL library's implementation of higher-order functions (HOF) in XSLT wouldn't be possible if XSLT didn't have the <xsl:apply-templates> instruction.
Summary: Templates and the <xsl:apply-templates> instruction is how XSLT implements and deals with pol...
What is the meaning of the term arena in relation to memory?
...ost importantly, it requires platform-specific knowledge to get the memory ordering right. I use "magic" for things that can either not be written portably by the user at all (like an efficient mutex, or tcmalloc, or the type name of a lambda), or only with extreme heroics (like std::function); I do...
Why should we typedef a struct so often in C?
...f'd structs without a tag name are a major cause of needless imposition of ordering relationships among header files.
Consider:
#ifndef FOO_H
#define FOO_H 1
#define FOO_DEF (0xDEADBABE)
struct bar; /* forward declaration, defined in bar.h*/
struct foo {
struct bar *bar;
};
#endif
With suc...
surface plots in matplotlib
... cases, these rogue triangles have to be removed from the triangulation in order to achieve the correct surface representation. For these situations, the user may have to explicitly include the delaunay triangulation calculation so that these triangles can be removed programmatically. Under these ci...
Coding Practices which enable the compiler/optimizer to make a faster program
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The order you traverse memory can have profound impacts on performance and compilers aren't really good at figuring that out and fixing it. You have to be conscientious of cache locality concerns when you write code if you care a...
Convert java.time.LocalDate into java.util.Date type
...
In order to create a java.util.Date from a java.time.LocalDate, you have to
add a time to the LocalDate
interpret the date and time within a time zone
get the number of seconds / milliseconds since epoch
create a java.util.Dat...