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duff    音标拼音: [d'ʌf]
n. 布丁的一种,揉好的面团,腐烂的落叶堆
vt. 使人以为新,球杆没打中球

布丁的一种,揉好的面团,腐烂的落叶堆使人以为新,球杆没打中球

duff
n 1: a stiff flour pudding steamed or boiled usually and
containing e.g. currants and raisins and citron [synonym:
{duff}, {plum duff}]

Duff \Duff\ (d[u^]f), v. t. [imp. & p. p. {Duffed}; p. pr. & vb.
n. {Duffing}.] [Etym. uncertain.] [Colloq. or Slang]
1. To treat or manipulate so as to give a specious appearance
to; to fake; hence, to cheat.
[Webster 1913 Suppl.]

2. In Australia, to alter the brands on (cattle, horses,
etc.); to steal (cattle, etc.), and alter their brands.
[Webster 1913 Suppl.]


Duff \Duff\ (d[u^]f), n. [From OE. dagh. [root]67. See {Dough}.]
1. Dough or paste. [Prov. Eng.] --Halliwell.
[1913 Webster]

2. A stiff flour pudding, boiled in a bag; -- a term used
especially by seamen; as, plum duff.
[1913 Webster]


Duff \Duff\ (d[u^]f), n.
the buttocks; as, get off your duff and get to work. [slang]

Syn: rump; ass. []

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  • How does Duffs device work? - Stack Overflow
    Duff's device deals with serial copying, rather than just any old problem, but is a classic example of how optimisations can be made by reducing the number of times that a comparison needs to be done in a loop
  • What does this C code do [Duffs device]? - Stack Overflow
    Duff's device In computer science, Duff's device is an optimized implementation of a serial copy that uses a technique widely applied in assembly language for loop unwinding
  • Can I use Duffs Device on an array in C? - Stack Overflow
    Duff's device is all about omitting most of the continuation checks, so it needs to be possible to predict how the continuation check behaves Probably, as long as dim is a power of 2 or you have fast modulus on your target system Learned something new today
  • What does PorterDuff. Mode mean in android graphics. What does it do?
    I would like to know what PorterDuff Mode means in android graphics I know that it is a transfer mode I also know, that it has attributes such as DST_IN, Multiply etc
  • map values in a dataframe from a dictionary using pyspark
    I want to know how to map values in a specific column in a dataframe I have a dataframe which looks like:
  • Switch statement fallthrough in C#? - Stack Overflow
    Implementations of Duff's Device in particular lend themselves well to the equivalent machine code or IL because each block of instructions will often be the same length without needing the addition of nop fillers †Duff's Device comes up here again, as a reasonable exception
  • Why cant variables be declared in a switch statement?
    This Duff's device implementation has a bug that makes it extremely slow: count is type int so the % must perform a real division modulo operation Make count unsigned (or better yet, always use size_t for counts indices) and the problem goes away
  • c# - do. . . while vs. while - Stack Overflow
    Consider also the classic use of do-while in Duff's device (wherein a while loop is transformed into an unrolled do-while with a larger step plus a jump table to handle the remainder) which dramatically reduces the loop overhead -- in applications such as memset, memcmp, memcpy it may increase throughput by a factor of 10





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