|
||||||||||||||||||||
|
||||||||||||||||||||
|
||||||||||||||||||||
Standard C Date/Time Library
und über 1 Million weitere Bücher verfügbar für Amazon Kindle .
Erfahren Sie mehr
| |||||||||||||||
Produktinformation
Möchten Sie die Produktinformationen aktualisieren oder Feedback zu den Produktabbildungen geben?
Ist der Verkauf dieses Produkts für Sie nicht akzeptabel? |
Produktbeschreibungen
Amazon.com
Lance Latham's Standard C Date/Time Library aims to solve the problem with time and calendars on computers. This book publishes the author's C library with functions (included on CD-ROM) for many of the world's calendars, interspersed with some truly fascinating historical material that makes sense of humankind's myriad attempts to get a handle on time.
The Standard C Date/Time Library begins with a description of the Y2K problem. The author then proceeds to show that definitions of years, months, and days are subject to different standards, many of which are the result of "applied astronomy." He develops his comprehensive solution using the Julian calendar and represents hours and minutes as fractions of days. His Standard C Date/Time Library (STDTL) offers extremely comprehensive functionality, allowing you to calculate differences between days and days of the week, as well as calculations for holidays.
The author intersperses source code listings with wide-ranging descriptions of calendars and their inconsistencies. For the treatment of the Western calendar and ISO 8601 standard time functions, this code library is worth it. However, the author goes much further and offers code for and descriptions of all the major calendars of the world, including non-Western calendars and ancient calendar systems. --Richard Dragan
Kurzbeschreibung
Does the year 2000 have you sweating late-night code? Use our complete library of C programming functions to master Y2K, time on the Net, ISO 8601, time stamp compression, or any other time/date application you encounter. Using the astronomers Julian Day'
Programming functions to help you master 'Y2K', time on the net, ISO 8601, time stamp compression, or any other time/date application you encounter.
Programming functions to help you master 'Y2K', time on the net, ISO 8601, time stamp compression, or any other time/date application you encounter.
In diesem Buch
(Mehr dazu)
Einleitungssatz
The Standard C Date/Time Library (SCDTL) is a collection of functions, written in the C language, related to date and time applications and designed to work as an integrated whole. Lesen Sie die erste Seite
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis | Rückseite
The Standard C Date/Time Library (SCDTL) is a collection of functions, written in the C language, related to date and time applications and designed to work as an integrated whole. Lesen Sie die erste Seite
Mehr entdecken
Wortanzeiger
Ausgewählte Seiten ansehenWortanzeiger
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis | Rückseite
Tags(Was ist das?)Bei einem Tag handelt es sich um ein Schlagwort, das zum Produkt passt.
Tags erleichtern allen Kunden die Suche und die Sortierung ihrer Lieblingsprodukte. |
Kundenrezensionen
Die hilfreichsten Kundenrezensionen
Format:Taschenbuch
This isn't merely a list of algorithms (though the number of included date/time programs is extensive); it gives a background and an explanation for the major calendar systems and many of the obscure ones. So I'd recommend it not just for "C programmers" but to anyone who cares about calendars and their vagaries.
Format:Taschenbuch
If you are a computer programmer, don't write any (more) date/time code until you see how Lance Latham does it! This book contains comprehensive, organized solutions to all the date/time problems you are likely to encounter, including tricky ones such as "What is the date N days after date X?," "How many days, exactly, are there between date X and date Y?," and even "What is my client's holiday schedule next year?"
Even if you think you already have an adequate library of date/time code in your shop, don't be too sure until you've tested it using the methods illustrated in Lance Latham's own test programs, included in the CD that accompanies the book. The Year 2000 bug is not the only one infesting date/time code!
For programmers with historical, international, or religious calendar problems to solve, this book is an invaluable reference for a wide range of past and present calendars and timekeeping systems. Lance Latham also includes a section on the forward-looking ISO 8601 standard, which is enjoying increasing usage in Europe.
I recommend this book even if you write computer programs in some language other than C. The routines in this book are easy to translate into other languages, even for programmers with only a "reading" knowledge of C. The correct usage of the routines is exhaustively documented, with all parameters, returns, and limitations spelled out for you. Whichever language you use, following Lance Latham's approach will lead to concise, fast, and reliable code.
My only caveat about this book is that the algorithms underlying the routines are not always adequately explained. Sometimes we are told no more than that an algorithm is a "standard Gregorian proleptic calendar conversion routine." Testing will verify that it does somehow give the correct results, but you may still be tempted to spend hours studying it to figure out how it works.
Format:Taschenbuch
I must admit that I'm not a programmer any more but I have read Lance's impressive book as I'm very interested in calendar problems. The book reveal Lance as an extremely competent programmer who writes his program codes in an easily understandable form ready for use for many date/time purposes.
Not often do one see date/time routines combined with the historical background of the calendars and their problems and again, Lance reveal himself as an expert in calendars from many, many countries in his discussion of the calendars. The description of the various calendars shows his deep understanding of the problems his codes solves. Included is a CD-ROM with the entire text of SCDTL, program codes, explanations and many calendar details that are not listed in the book.
It has been a pleasure to read the book and learn from it.
Toke Nørby
Möchten Sie weitere Rezensionen zu diesem Artikel anzeigen?
Waren diese Rezensionen hilfreich?
Wir wollen von Ihnen hören.
Kunden diskutieren
|
Das Forum zu diesem Produkt
Fragen stellen, Meinungen austauschen, Einblicke gewinnen Aktive Diskussionen in ähnlichen Foren
Kundendiskussionen durchsuchen
|
Ähnliche Foren
|
||||||||||||||||||||||||||||||||||
Lieblingslisten
Ähnliche Artikel finden
Anhand des Sachgebietes nach ähnlichen Produkten suchen:
Ihr Kommentar
Möchten Sie die Produktinformationen aktualisieren oder Feedback zu den Produktabbildungen geben?
