Hard and soft
Function pointers are among the most powerful tools in C, but are a bit of a pain during the initial stages of learning. This article demonstrates the basics of function pointers, and how to use them to implement function callbacks in C. C++ takes a slightly different route for callbacks, which is another journey altogether.
Using Windows.Forms gets really ugly when you need to access the user interface from multiple threads. IMHO, this is an example of leaky abstraction.
When you run a program with this UI threading issue from within Visual Studio, it will always throw an exception. The same program running as a standalone EXE may not throw the exception. That is to say, the development environment is stricter than the .NET framework.
Too often, New Year’s resolutions to get into better shape are derailed because of a lack of realistic planning. The same thing happens in the security sphere.
Too often, New Year’s resolutions to get into better shape are derailed because of a lack of realistic planning. The same thing happens in the security sphere.
A significant advantage of eBook reading device is the capacity, even with a basic version of Kindle, you can hold thousands of eBooks with this handy size device. But every coin has two sides, after finishing and archiving more and more books, the storage space will become more and more disordered.
When you need to spend minutes to find the book you want to read, it is high time that you cleaned your ebook shelf up.
Before cleaning your Kindle up, you should know what kind of deletion do you need.
1) You have downloaded too many books and finished most of them, now you want to make your Kindle looks clear and clean, delete those finished books from device but keep them in cloud.
• You are using Kindle device, like Kindle Touch, Kindle Paperwhite, Kindle Fire
• You are using Kindle app, like Kindle for Android, Kindle for iOS
2) You even don’t want to see those finished books in archive, want to delete them from Kindle Cloud.
• Delete books completely from your Kindle Cloud, delete books from Kindle archive
Click the links above you can jump to the part which can solve your problem.
Una de las paradojas del desarrollo actual es que la disponibilidad de herramientas con grados de abstracción cada vez más altos ha hecho el convertirse en un programador de alto de nivel cada vez más difícil.
Si bien es cierto que se puede desarrollar en ASP .Net con el ratón, inevitablemente llega el momento del error extraño, o del requerimiento fuera del alcance de los asistentes y la ayuda en línea. La única manera de salir de esos pozos es entendiendo el código base, debajo de la capa del IDE y de los asistentes.
Point-and-click VB es un cómodo sillón, pero que flota en aguas turbulentas y más nos vale saber nadar.
All non-trivial abstractions, to some degree, are leaky.
Abstractions fail. Sometimes a little, sometimes a lot. There’s leakage. Things go wrong.
How can I get more ebook OPDS download sites for the reader?
Here is a list in MobileRead Wiki: http://wiki.mobileread.com/wiki/OPDS#Online_OPDS_Catalogs, you can also google “opds sites” for more.
Extreme Programming: A gentle introduction.40 % análisis y diseño5 % codificación30 % pruebas y soporte25 % más análisis, diseño, pruebas, y soportePero….5% de los programadores (o menos) hacen 95% del trabajo (o más)Un programador es producti…
Extreme Programming: A gentle introduction.
40 % análisis y diseño
5 % codificación
30 % pruebas y soporte
25 % más análisis, diseño, pruebas, y soporte
Pero….
5% de los programadores (o menos) hacen 95% del trabajo (o más)
Un programador es productivo alrededor de 2 a 4 horas diarias en promedio. Por eso los beneficios de programación en pares en realidad no implican un costo en productividad. Antes al contrario, probablemente un equipo de 2 de programadores trabajando bajo el esquema de programación extrema sea 2 a 3 veces más productivo que los mismos programadores trabajando de manera aislada.
El enfasis en diseño y pruebas es simplemente una realidad del ciclo de desarrollo:
Referencias:
http://www.objectmentor.com/resources/articles/ObjectiveView3.pdf
x = A b;
no => use QR to solve least squares problem.
yes => sparse triangular solve
yes => attempt Cholesky after symmetric minimum degree.
http://www.blogsbyheather.com/2009/01/blogger-linking-to-a-pdf-or-word-document-in-a-post.html