-
Using the UnderC Tokenizer Class
It s often necessary to parse complex text files, where standard i/o
is too clumsy. C programmers Fall back on strtok(), but this can be
tricky to use properly. Besides, you are still responsible for keeping
strtok() fed with new input, and I don t like the schlepp.
Tokenizer is a text-parsing input stream, modelled after the (undocumented)
VCL TParser class, and based on the UnderC tokenizing preprocessor front-end.
標簽:
Tokenizer
necessary
standard
complex
上傳時間:
2013-12-16
上傳用戶:whenfly
-
兩種解決方案 Richard just finished building his new house. Now the only thing the house misses is a cute little wooden fence. He had no idea how to make a wooden fence, so he decided to order one. Somehow he got his hands on the ACME Fence Catalogue 2002, the ultimate resource on cute little wooden fences. After reading its preface he already knew, what makes a little wooden fence cute.
A wooden fence consists of N wooden planks, placed vertically in a row next to each other. A fence looks cute if and only if the following conditions are met:
?The planks have different lengths, namely 1, 2, . . . , N plank length units.
?Each plank with two neighbors is either larger than each of its neighbors or smaller than each of them. (Note that this makes the top of the fence alternately rise and Fall.)
標簽:
house
the
finished
building
上傳時間:
2014-01-26
上傳用戶:541657925
-
富士通單片機MB902420系列
extINT Project:
All external Interrupt-Pins INT0 .. INT7 will be enabled.
A Falling edge on INTx will toggle PDR4_P4x
in order to toggle the LEDx of the Flash-CAN-100P Board
e.g. Falling edge on INT3 will result in LED D3 will toggleP47..P40 (UserLEDs of FlashCan100P)
and will send out again as byte-packages to ID#2
Receive-Buffer #1 : basic can
Transmit-Buffer #6 : full-can ID #2
標簽:
Interrupt-Pins
external
Project
enabled
上傳時間:
2016-04-27
上傳用戶:waizhang
-
The code on this diskette has been organized by chapter. Each subdirectory
containing listing has a readme.txt describing program usage and any relevent
file formats. The readme will also describe how to compile the target
programs under IBM OS/2 (TM) using the using C Set++ compiler (TM). All programs on
this diskette have been compiled and tested in this environment. The majority
of programs on this diskette should port to other environments with only minor
adjustments. The exception to this are those programs which utilize
presentation manager for graphical display of program data. In particular,
the grid1 programs in \chapt4\backprop\ and \chapt3\ Fall into this latter category.
標簽:
subdirectory
containing
has
organized
上傳時間:
2016-10-28
上傳用戶:冇尾飛鉈
-
Playfair Cipher
1.not even the large number of keys in a monoalphabetic cipher provides security
2.one approach to improving security was to encrypt multiple letters
3.the Playfair Cipher is an example
4.invented by Charles Wheatstone in 1854,but named after his friend Baron Playfair
Playfair Key Matrix
1.a 5X5 matrix of letters based on a keyword
2.fill in letters of keyword (sans duplicates)
3.fill rest of matrix with other letters
Encrypting and Decrypting
-plaintext is encrypted two letters at a time
1. if a pair is a repeated letter, insert filler like X’
2. if both letters Fall in the same row, replace each with letter to right (wrapping back to start from end)
3. if both letters Fall in the same column, replace each with the letter below it (again wrapping to top from
bottom)
4. otherwise each letter is replaced by the letter in the same row and in the column of the other letter of the pair
標簽:
monoalphabetic
Playfair
provides
security
上傳時間:
2017-05-25
上傳用戶:變形金剛
-
This is our version of tetris, with "guidelines" as an option. These will allow you to easily se where the pieces will Fall, be highlighing the columns that the Falling piece is at the given moment.
Enjoy!
標簽:
guidelines
version
easily
option
上傳時間:
2013-12-17
上傳用戶:520
-
A large body of computer-aided techniques has been developed in recent years to assist
in the process of modeling, analyzing, and designing communication systems . These
computer-aided techniques Fall into two categories: formula-based approaches, where the
computer is used to evaluate complex formulas, and simulation-based approaches, where the
computer is used to simulate the waveforms or signals that flow through the system. The
second approach, which involves “waveform”-level simulation (and often incorporates
analytical techniques), is the subject of this book.
Since performance evaluation and trade off studies are the central issues in the analysis
and design of communication systems, we will focus on the use of simulation for evaluating
the performance of analog and digital communication systems with the emphasis on digitalcommunication systems.
標簽:
computer-aided
techniques
developed
assist
上傳時間:
2014-01-01
上傳用戶:541657925
-
Wireless technologies like GSM, UMTS, LTE, Wireless LAN and Bluetooth have
revolutionized the way we communicate by making services like telephony and Internet
access available anytime and from almost anywhere. Today, a great variety of technical
publications offer background information about these technologies but they all Fall
short in one way or another. Books covering these technologies usually describe only
one of the systems in detail and are generally too complex as a first introduction. The
Internet is also a good source, but the articles one finds are usually too short and super-
ficial or only deal with a specific mechanism of one of the systems. For this reason, it
was difficult for me to recommend a single publication to students in my telecommunication
classes, which I have been teaching in addition to my work in the wireless telecommunication
industry. This book aims to change this.
標簽:
LTE-Advanced
From
GSM
Pro
and
5G
to
上傳時間:
2020-05-27
上傳用戶:shancjb
-
Wireless technologies like GSM, UMTS, LTE, Wireless LAN and Bluetooth have revolu-
tionized the way we communicate and exchange data by making services like telephony and
Internet access available anytime and from almost anywhere. Today, a great variety of techni-
cal publications offer background information about these technologies but they all Fall short
in one way or another. Books covering these technologies usually describe only one of the
systems in detail and are generally too complex as a first introduction. The Internet is also a
good source, but the articles one finds are usually too short and superficial or only deal with
a specific mechanism of one of the systems. For this reason, it was difficult for me to recom-
mend a single publication to students in my telecommunication classes, which I have been
teaching in addition to my work in the wireless telecommunication industry. This book aims
to change this.
標簽:
GSM
LTE-Advanced
上傳時間:
2020-05-27
上傳用戶:shancjb
-
Part I provides a compact survey on classical stochastic geometry models. The basic models defined
in this part will be used and extended throughout the whole monograph, and in particular to SINR based
models. Note however that these classical stochastic models can be used in a variety of contexts which
go far beyond the modeling of wireless networks. Chapter 1 reviews the definition and basic properties of
Poisson point processes in Euclidean space. We review key operations on Poisson point processes (thinning,
superposition, displacement) as well as key formulas like Campbell’s formula. Chapter 2 is focused on
properties of the spatial shot-noise process: its continuity properties, its Laplace transform, its moments
etc. Both additive and max shot-noise processes are studied. Chapter 3 bears on coverage processes,
and in particular on the Boolean model. Its basic coverage characteristics are reviewed. We also give a
brief account of its percolation properties. Chapter 4 studies random tessellations; the main focus is on
Poisson–Voronoi tessellations and cells. We also discuss various random objects associated with bivariate
point processes such as the set of points of the first point process that Fall in a Voronoi cell w.r.t. the second
point process.
標簽:
Stochastic
Geometry
Networks
Wireless
Volume
and
上傳時間:
2020-06-01
上傳用戶:shancjb