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In software engineering, double-checked locking (also known as "double-checked locking optimization" [1]) is a software design pattern used to reduce the overhead of acquiring a lock by testing the locking criterion (the "lock hint") before acquiring the lock.
The assert macro implements runtime assertion. If the expression within it is false, the macro will print a message to stderr and call abort(), defined in stdlib.h.The message includes the source filename and the source line number from the macros __FILE__ and __LINE__, respectively. [2]
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
HTML Form format HTML 4.01 Specification since PDF 1.5; HTML 2.0 since 1.2 Forms Data Format (FDF) based on PDF, uses the same syntax and has essentially the same file structure, but is much simpler than PDF since the body of an FDF document consists of only one required object. Forms Data Format is defined in the PDF specification (since PDF 1.2).
Marc Grégoire (January 15, 1906 - January 10, 1996 [1]) was an inventor of PTFE (Teflon) coated non-stick pans. [2] He was an ONERA engineer at the time of the invention. [ 3 ] In one version of the story, he devised a method to apply Teflon to an aluminum mould, to assist the removal of glass fibre fishing rods from the mould. [ 3 ]
Visual C++ Toolkit 2003 is a version of the same C++ compiler shipped with Visual Studio .NET 2003 without the IDE that Microsoft made freely available. As of 2010 it is no longer available and the Express Editions have superseded it. Visual Studio .NET 2003 also supports Managed C++, which is the predecessor of C++/CLI.
In 2012, the Library of Congress announced that it had contracted with Zepheira, a data management company, to develop a linked data alternative to MARC. [5] Later that year, the library announced a new model called MARC Resources (MARCR). [6] That November, the library released a more complete draft of the model, renamed BIBFRAME. [1] [nb 1]
DDC International A/S was housed in a converted textile mill in Lyngby, Denmark, here seen in 1990. DDC-I established a business in selling the Ada compiler system product, named DACS, directly to firms, both as software to develop projects in Ada with, and as source code to computer makers and others, who would rehost or retarget it to other processors and operating systems.