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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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  • 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 Its discovery is credited to Tom Duff in November of 1983, who at the time was working for Lucasfilm
  • Using two values for one switch case statement - Stack Overflow
    In my code, the program does something depending on the text entered by the user My code looks like: switch (name) { case text1: { blah break; }
  • gcc - Is Duffs device still useful? - Stack Overflow
    In the Duff's Device case, the target was a memory-mapped register, and the source was an arbitrary pointer Today, the memory-mapped register would likely have to be tagged as volatile and it's not clear whether the compiler could determine whether the source and destination pointers could ever alias
  • c - How does Duffs device work? - Stack Overflow
    What Duff's device does is implement this idea, in C, but (as you saw on the Wiki) with serial copies What you're seeing above, with the unwound example, is 10 comparisons compared to 100 in the original - this amounts to a minor, but possibly significant, optimisation
  • Does Duffs Device Speed up Java Code? - Stack Overflow
    A trick known as Duff's device can be used in C or C++ to unroll the loop, but this is not valid code in the Java programming language: Or, more bluntly (from the same section): Great C hack, Tom, but it's not valid here EDIT: To answer your more (too) general question, usually no You should generally rely on the JIT
  • Android ColorFilter - Porter-Duff Modes - Stack Overflow
    Note that Porter-Duff modes are only defined to work properly with premultiplied alpha That means that none of the R, G or B components can exceed the alpha value GitHub project for the Android project which shows off all the Porter-Duff modes
  • graphics - ANDROID: what is the equivalent blend modes (porter duff . . .
    I'm trying to create an effect that I saw in an IOS application where the they used a blend mode of color and one of hue, but I couldn't find those blend modes in the PorterDuff modes enum
  • Revising the syntax of Duffs device - Is this legal C C++?
    Only last night I encountered the curious Duff's device for the first time I've been doing some reading on it, and I don't think it's that daunting to understand What I am curious about is the strange syntax (from Wikipedia):
  • c - Writing a macro for Duffs Device - Stack Overflow
    Duff's Device, though nifty in select coding, is not a useful general purpose C idiom You may find some kudos using it, but be prepared for negative push-back – chux
  • c++ - How can Duffs device code be compiled? - Stack Overflow
    A simple explanation of why Duff's Device compiles is that the syntax of the switch statement isn't particularly specific about the form that the switch statement block might need to take There are a few restrictions, and a couple of things permitted in the controlled statement that aren't permitted outside a switch (the case and default labels)





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