ComRAONworlD

C Snippet #10

raon_pgm — Tue, 02 Mar 2010 12:16:42 +0900

C Snippet #10 When you really need really random By Bob Stout, Dr. Dobb's Journal 1Ô 28, 2010 URL:http://www.drdobbs.com/cpp/222600299 Q: HOW DO I... create a unique series of random numbers? A: Have you ever written some really killer C program -- such as a game -- that uses the rand() random number function, only to find that it seemingly isn't random after all? The problem isn't in rand() per se, but in the fact that it needs to be reseeded before use. What to seed it with? Why, a random number of course! If you find this circular logic confusing, don't worry. The s.......

Algorithm Improvement through Performance Measurement: Part 4

raon_pgm — Thu, 14 Jan 2010 09:34:57 +0900

Algorithm Improvement through Performance Measurement: Part 4 Stable Hybrid MSD N-bit-Radix Sort By Victor J. Duvanenko, Dr. Dobb's Journal 1?04, 2010 URL:http://www.ddj.com/development-tools/222200161 Algorithm Improvement through Performance Measurement: Part 1 Algorithm Improvement through Performance Measurement: Part 2 Algorithm Improvement through Performance Measurement: Part 3 The In-place Hybrid MSD N-bit-Radix Sort I presented in In-place Hybrid N-bit-Radix Sort was developed as a combination of Radix Sort, Insertion Sort, and Counting Sort. This algo.......

Algorithm Improvement through Performance Measurement: Part 3

raon_pgm — Thu, 14 Jan 2010 09:33:34 +0900

Algorithm Improvement through Performance Measurement: Part 3 In-place Hybrid N-bit-Radix Sort By Victor J. Duvanenko, Dr. Dobb's Journal 11?03, 2009 URL:http://www.ddj.com/architect/221600153 Algorithm Improvement through Performance Measurement: Part 1 Algorithm Improvement through Performance Measurement: Part 2 Algorithm Improvement through Performance Measurement: Part 4 The In-place Hybrid Binary-Radix Sort I presented in Algorithm Improvement through Performance Measurement: Part 2 sorted arrays of numbers (8, 16, 32 and 64-bit, signed and unsigned) in lin.......

C Snippet #9

raon_pgm — Thu, 14 Jan 2010 08:32:25 +0900

C Snippet #9 Copying overlapping strings By Bob Stout, Dr. Dobb's Journal 12?18, 2009 URL:http://www.ddj.com/cpp/222002684 Q: HOW DO I... safely copy or concatenate overlapping strings? A: The C standard library provides memmove() for safely copying overlapping memory areas, but no corresponding function for working specifically with character arrays (strings). This Snippet presents two functions which are analogs of the standard strcpy() and strcat() functions which may safely be used when string spaces overlap. #include char *sstrcpy(char *to, cha.......

Round-off Error

raon_pgm — Mon, 16 Nov 2009 21:56:36 +0900

---------- run ----------g = 5.00000000e-001 ex = 4.90000010e-001g = 2.50000000e-001 ex = 2.45000005e-001g = 1.25000000e-001 ex = 1.22499943e-001g = 6.25000000e-002 ex = 6.12499714e-002g = 3.12500000e-002 ex = 3.06249857e-002g = 1.56250000e-002 ex = 1.53125525e-002g = 7.81250000e-003 ex = 7.65621662e-003g = 3.90625000e-003 ex = 3.82816792e-003g = 1.95312500e-003 ex = 1.91402435e-003g = 9.76562500e-004 ex = 9.57012177e-004g = 4.88281250e-004 ex = 4.78506088e-004g = 2.44140625e-004 ex = 2.39253044e-004g = 1.22070313e-004 ex = 1.1.......

C Snippet #8

raon_pgm — Wed, 11 Nov 2009 15:44:43 +0900

C Snippet #8 Timers and default actions By Bob Stout, Dr. Dobb's Journal 11Ô 07, 2009 URL:http://www.ddj.com/cpp/221600722 Q: HOW DO I... put timers with default actions in my C code? A: Many times, we need to write programs that will only wait a certain specified amount of time for a user to do something. After that time, we need to assume that the user isn't going to do anything and move on to some specified default action. This Snippet works exactly like the get_ch() function in most PC C compiler libraries, except that it will only wait as long as you tell it fo.......

Algorithm Improvement through Performance Measurement: Part 2

raon_pgm — Tue, 27 Oct 2009 10:13:19 +0900

Algorithm Improvement through Performance Measurement: Part 2 In-place Hybrid Binary-Radix Sort By Victor J. Duvanenko, Dr. Dobb's Journal 10?01, 2009 URL:http://www.ddj.com/hpc-high-performance-computing/220300654 Algorithm Improvement through Performance Measurement: Part 1 Radix sorting algorithms do not compare elements of the array to each other and thus are not bound by O(nlogn) performance limit of comparison-based sorting algorithms. In fact, they have O(kn) linear performance. Radix Sort processes array elements one digit at a time, starting ether from the most si.......

Algorithm Improvement through Performance Measurement: Part 1

raon_pgm — Tue, 27 Oct 2009 10:12:12 +0900

Algorithm Improvement through Performance Measurement: Part 1 Optimizing sort algorithms for today's CPUs By Victor J. Duvanenko, Dr. Dobb's Journal 9?15, 2009 URL:http://www.ddj.com/architect/220000504 Algorithm Improvement through Performance Measurement: Part 2 Sorting algorithms present some of the most interesting core challenges within computer science and engineering. A variety of sorting algorithms have been invented and studies over decades, with each algorithm providing a unique performance advantage over others, and some poor ones providing none at all. The web .......

Multithreaded File I/O

raon_pgm — Tue, 27 Oct 2009 10:02:52 +0900

Multithreaded File I/O Tackling the file I/O bottleneck By Stefan Wörthmüller, Dr. Dobb's Journal 9Ô 28, 2009 URL:http://www.ddj.com/cpp/220300055 Stefan is founder of www.RED-SOFT-ADAIR.com, a company that rescues software development projects in a technical crisis. He can be contacted at StefanWoe@gmail.com Over the past year or so, we've heard a lot about multithreading, deadlocks, cache invalidation, and superlinear scalability. I, for one, have introduced multithreading for the CPU-intensive parts of my applications. During this time, however, I've come .......

C Snippet #7

raon_pgm — Tue, 27 Oct 2009 10:01:11 +0900

C Snippet #7 Querying in a .BAT file, using a timeout default By Bob Stout, Dr. Dobb's Journal 10Ô 10, 2009 URL:http://www.ddj.com/cpp/220301425 Q: HOW DO I... ask questions in a .BAT file, then use a timeout default? A: This Snippet originally (last updated in 1997) addressed a DOS operational issue rather than C coding issues, but was offered for its demonstration value. This new version updates the original, providing additional options and bullet-proofing. It has been tested under both DOS, Win32, and POSIX (UNIX, Linux) systems. The syntax of this utility is: Q.......

C Snippet #6

raon_pgm — Tue, 06 Oct 2009 13:28:03 +0900

C Snippet #6 Getting a string of arbitrary length By Bob Stout, Dr. Dobb's Journal 9Ô 28, 2009 URL:http://www.ddj.com/cpp/220300037 Q: HOW DO I... get a string of any arbitrary length from the console? A: The ANSI C gets() function is one of those obsolescent functions that is in the standard simply because it would have broken too much existing code to have left it out. The ANSI function fgets() is generally preferable to gets() since it protects against buffer overflow. The following getstring() function combines the best of both, using dynamic memory al.......

C Snippet #5

raon_pgm — Tue, 06 Oct 2009 13:26:59 +0900

C Snippet #5 Timers and default actions By Bob Stout , Dr. Dobb's Journal 9?18, 2009 URL:http://www.ddj.com/cpp/220001077 Q: HOW DO I... put timers with default actions in my C code? A: Many times, we need to write programs that will only wait a certain specified amount of time for a user to do something. After that time, we need to assume that the user isn't going to do anything and move on to some specified deafult action. This Snippet works exactly like the get_ch() function in most PC C compiler libraries, except that it will only wait as long as you tell it for the us.......

C Snippet #4

raon_pgm — Tue, 15 Sep 2009 14:38:09 +0900

C Snippet #4 Computing the wind chill factor By Bob Stout, Dr. Dobb's Journal 9Ô 09, 2009 URL:http://www.ddj.com/cpp/219700315 Q: HOW DO I... compute the wind chill factor from temperature and wind speed? A: Okay, so I've only seen this question come up twice. It's still a fascinating Snippet which could potentially save someone hours of research. #include float wind_chill(int wind_speed, int temp) { return (((10.45 + (6.686112 * sqrt((double) wind_speed)) - (.447041 * wind_speed)) / 22.034 * (temp - 91.4)) + 91.4); } .......

C Snippet #3

raon_pgm — Wed, 02 Sep 2009 08:52:20 +0900

C Snippet #3 Sorting an array of strings By Bob Stout, Dr. Dobb's Journal 8Ô 27, 2009 URL:http://www.ddj.com/cpp/219500313 Q: HOW DO I... sort an array of strings? A: Sorting jobs come in all sizes. One of the most common is simply sorting an array of strings. Unless the array is very large, the standard qsort() function is often inefficient for such tasks. In such situations, you might consider the Shell sort presented in this Snippet. Call it with only two arguments, a pointer to the string array to sort and the number of strings in the array. /* ** strsort().......

C Snippet #2

raon_pgm — Wed, 02 Sep 2009 08:51:19 +0900

C Snippet #2 Rounding floating-point values By Bob Stout, Dr. Dobb's Journal 8Ô 12, 2009 URL:http://www.ddj.com/cpp/219200409 Q: HOW DO I... round floating-point values in C? A: This header file Snippet contains macros to round floating-point values in two different manners. The iround() macro rounds the value to the nearest integer. The fround() macro rounds the value to a specified number of decimal points. /* ** rounding macros by Dave Knapp */ /* round to integer */ #define iround(x) floor((x)+0.5) /* round number n to d decimal points */ #define f.......

C Snippet #1

raon_pgm — Wed, 02 Sep 2009 08:49:36 +0900

C Snippet #1 Determining a file's size By Bob Stout, Dr. Dobb's Journal 8Ô 05, 2009 URL:http://www.ddj.com/cpp/219100141 Q: HOW DO I... determine a file's size by using only ANSI functions? A: Determining the size of a file is a function that is specific to each computer environment and, as such, wasn't addressed directly in the ANSI C standard. It is, however, possible to write such a function using only the tools ANSI has provided. C Snippet #1 shows how. /* ** FLENGTH.C - a simple function using all ANSI-standard functions ** to determine the .......

The C++0x "Remove Concepts" Decision

raon_pgm — Fri, 31 Jul 2009 09:46:16 +0900

The C++0x "Remove Concepts" Decision Concepts were to have been the central new feature in C++0x By Bjarne Stroustrup, Dr. Dobb's Journal 7Ô 22, 2009 URL:http://www.ddj.com/cpp/218600111 Bjarne Stroustrup designed and implemented the C++ programming language. He can be contacted here. At the July 2009 meeting in Frankfurt, Germany, the C++ Standards Committee voted to remove "concepts" from C++0x. Although this was a big disappointment for those of us who have worked on concepts for years and are aware of their potential, the removal fortunately will not.......

Gdb vs. dbx feature comparison

raon_pgm — Thu, 23 Jul 2009 15:40:36 +0900

Gdb vs. dbx feature comparison gdb dbx Invocation gdb programgdb program coregdb program pid dbx progamdbx program coredbx program pid gdb -c coregdb -p pidNote: need to specify program explicitly dbx - coredbx - pid(program is found automatically)Note: dbx cannot debug core files and live processes without access to program file, i.e. a.out gdb -s file(read symbols from file) - gdb -x file dbx ... < filedbx -s file ... -tty device(Run using device for your program’s standard input and output) dbxenv run_io ptydbxenv run_pty device -wri.......

Preprocessor symbols defined

raon_pgm — Thu, 16 Jul 2009 16:44:21 +0900

Platform CPP defines Windows NT 4.0,2000,XP __x86__ __NT__ __OSVERSION__=4 __WIN32__ Windows NT 3.5 __x86__ __NT__ __OSVERSION__=3 __WIN32__ Windows 95 __x86__ __WIN32__ Sun Solaris 2.5 __sparc__ __sunos__ __OSVERSION__=5 HPUX 10.x __hppa__ __hpux__ __OSVERSION__=10 HPUX 11.x __hppa__ __hpux__ __OSVERSION__=11 IBM AIX 4.x __aix__ __powerpc__ __OSVERSION__=4 Digital Unix 3.2 __alpha__ __osf1__ __OSVERSION__=3 Linux 2.x (x86) __x86__ __linux__ __OSVERSION__=2 Linux 2.x (powerpc) __powerpc__ __linux__ __OSVERSION__=2 OpenVMS 6.x (alpha) __alp.......

Revisiting the Thread-Safe C++ Singleton

raon_pgm — Wed, 08 Jul 2009 10:05:20 +0900

http://www.bombaydigital.com/arenared/2005/10/25/1 I wrote a long time ago what was basically a note to myself about implementing the Singleton pattern in C++. Here I will update and expand on some of the issues. Obviously, the code presented here could take the form of a template, but for clarity I'm showing it as an example class named T. Single-Threaded Implementation If you know for certain that your singleton will be first accessed in a single-threaded context -- for example, during static initialization when no other threads yet exists -- you can do a simple test for .......

The C++ Standard Library - A Tutorial and Reference

raon_pgm — Mon, 06 Jul 2009 10:46:20 +0900

Index The C++ Standard Library - A Tutorial and Reference Index This is the index of all code examples of the book The C++ Standard Library - A Tutorial and Reference by Nicolai M. Josuttis. [contents] [examples-home] [book-home] [copyrights] Aabsolute and relative valuesaccumulate() algorithmadjacent_difference() algorithmadjacent_difference() algorithm to convert absolute into relative valuesadjacent_find() algorithmadvance()advance() and iteratorsalgorithm for_each()algorithms and member functionsalgorithms and predefined functio.......

IETF Documents

raon_pgm — Mon, 15 Jun 2009 14:46:14 +0900

http://tools.ietf.org/html/

FILE TRANSFER PROTOCOL (FTP)

raon_pgm — Mon, 15 Jun 2009 14:36:03 +0900

Network Working Group J. Postel Request for Comments: 959 J. Reynolds ISI Obsoletes RFC: 765 (IEN 149) October 1985 FILE TRANSFER PROTOCOL (FTP) Status of this Memo This memo is the official specification of the File Transfer Protocol (FTP). Distribution of this memo is unlimited. The following new optional commands are included in this edition of the specification.......

GoF - Design Patterns

raon_pgm — Fri, 29 May 2009 09:33:20 +0900

Dozens of 1-page examples in C++ and Java. Before-and-After refactoring examples. Book summaries. Design Patterns http://www.vincehuston.org/dpVince Huston Recent changes: 19 Jan 07 - new Structure Summary sections 14 Dec 06 - GoF structure similarities 24 Aug 06 - new sections and diagrams added 05 Mar 06 - large new Strategy chapter 12 Feb 06 - Refactored book hyperlinks 10 Feb 05 - Towers of Hanoi and Interpreter 12 Jan 05 - Mastermind and State 17 Jul 03 - GoF design class diagrams quiz 24 Aug 06 - new sections and diagrams added .......

C에서 macro를 이용하여 C Object 흉내내기 간단예제

raon_pgm — Wed, 27 May 2009 17:53:32 +0900

단순한 fixed vector 형태로 macro를 이용하여 사용자가 입력한 타입에 맞게 구조체를 생성하고 fuction pointer를 이용하여 동일한 interface를 제공하는 단순예제이다. C++의 템플릿 클래스와 같이 생성할 때 마다 Struct 생성된다. 1 2 #include 3 #include 4 5 #ifdef __cplusplus__ 6 extern "C" { 7 #endif 8 9 static void* memory_assign( size_t n, size_t type_sz )10 {11 void* v;12 v = (void*)malloc((size_t)(n*type_sz));13 .......

Random number class

raon_pgm — Wed, 15 Apr 2009 15:11:37 +0900

1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 8 using namespace std; 9 10 //! Generating random number class11 /*!12 range [ nRangeMin_, nRangeMax_ )13 */14 class CRandom {15 public:16 CRandom( int nMin = 0, int nMax = RAND_MAX )17 {18 nRangeMin_ = nMin;19 &nbs.......

About Log Files: Part 2

raon_pgm — Sat, 21 Mar 2009 10:08:24 +0900

About Log Files: Part 2 Extended logging techniques By Stefan Wörthmüller, Dr. Dobb's Journal 2?23, 2009 URL:http://www.ddj.com/cpp/214502427 Stefan is a software developer in Berlin specializing in cross-platform development, user interfaces, and reengineering. He can be contacted at StefanWoe@gmail.com In Part 1 of this two-part article about log files, I presented log file basics. You've seen how to write log files and how to use them. But how can log files be used in more complex situations? In this installment, I examine how you can use logging with large dat.......

Formatting standard string of C++

raon_pgm — Wed, 04 Feb 2009 14:56:50 +0900

MFC의 CString은 기본 member function에 Format이 있어 printf 형태의 format을 지정할 수 있지만, Standard string의 경우 sstream의 ostringstream을 이용하거나 char * type으로 정의 해서 해야 하는 불편함이 있다. string class를 상속하여 해결하는 것도 좋긴하지만, 간단하게 function을 구현하여 사용하는 방법을 기술해 본다. argument를 이용하고, vsnprintf를 이용한다. StringPrintf 함수 내에서 처리하는 char * 의 최대 크기는 INT_MAX의 1/4 크기이다, 이를 초과할 경우 assertion.. StringPrintf의 인자로 사이즈를 지정하게 되어 있는데, 불편하다면 Function 내에 값을 정하고, 문서에 남겨놓는게 좋다. 엄한.......

All About Log Files: Part 1

raon_pgm — Wed, 04 Feb 2009 12:58:35 +0900

All About Log Files: Part 1 Just because log files seem boring doesn't mean they're not important By Stefan Wörthmüller, Dr. Dobb's Journal 1Ô 27, 2009 URL:http://www.ddj.com/cpp/212902973 Stefan is a software developer in Berlin specializing in cross-platform development, user interfaces, and reengineering. He can be contacted at StefanWoe@gmail.com Every program should write a log file. Period. Log files will save you hours and sometimes days of tedious debugging work. They are a basic part of structured debugging and quality assurance. The idea might seem od.......

Recursive Descent PEG Parsers Using C++ Templates

raon_pgm — Tue, 20 Jan 2009 08:21:58 +0900

Recursive Descent PEG Parsers Using C++ Templates YARD -- "Yet Another Recursive Descent" -- is a C++ parsing framework By Christopher Diggins, Dr. Dobb's Journal 1Ô 02, 2009 URL:http://www.ddj.com/cpp/212700432 Christopher is a freelance programmer and consultant, with a particular interest in the design and implementation of programming languages. He can be contacted at cdiggins@gmail.com. In this article, I introduce the YARD (short for "Yet Another Recursive Descent") C++ parsing framework. YARD is based on the PEG ("Parsing Expression Grammars") formalism, and m.......

volatile vs. volatile

raon_pgm — Tue, 13 Jan 2009 12:03:31 +0900

volatile vs. volatile A tale of two similar but different tools By Herb Sutter, Dr. Dobb's Journal 1Ô 08, 2009 URL:http://www.ddj.com/cpp/212701484 Herb is a bestselling author and consultant on software development topics, and a software architect at Microsoft. He can be contacted at www.gotw.ca. What does the volatile keyword mean? How should you use it? Confusingly, there are two common answers, because depending on the language you use volatile supports one or the other of two different programming techniques: lock-free programming, and dealing with 'unusual' me.......

Measuring Parallel Performance: Optimizing a Concurrent Queue

raon_pgm — Sun, 28 Dec 2008 15:45:29 +0900

Measuring Parallel Performance: Optimizing a Concurrent Queue When it comes to scalability and concurrency, more is always better. By Herb Sutter, Dr. Dobb's Journal 12?01, 2008 URL:http://www.ddj.com/cpp/212201163 Herb is a bestselling author and consultant on software development topics, and a software architect at Microsoft. He can be contacted at www.gotw.ca. How would you write a fast, internally synchronized queue, one that callers can use without any explicit external locking or other synchronization? Let us count the ways...or four of them, at least, and compar.......

.NET Development on Linux

raon_pgm — Sat, 06 Dec 2008 08:50:42 +0900

.NET Development on Linux Eric finds out that a VM and Mono comes in handy when creating C# .NET programs. In addition to Linux, Mono lets you develop and run .NET client and server applications on Solaris, Mac OS X, Windows, and UNIX. By Eric Bergman-Terrell, Dr. Dobb's Journal 12Ô 02, 2008 URL:http://www.ddj.com/windows/212201484 Eric has developed everything from data reduction software for particle bombardment experiments to software for travel agencies. He can be contacted at EricTerrell@comcast.net. Although I started my software-development career as a UNIX .......

Calling a C++ lib from C#

raon_pgm — Thu, 30 Oct 2008 15:35:25 +0900

Calling a C++ lib from C# a few months back, I found myself having to use a C++ .lib file from C#. it took a bit of looking around to figure it out, so I figured that I'd publish my cheat sheet here. I posted a number of questions about this subject to the C# interop newsgroup and found that the MVPs were excellent. if you search, you'll find these posts and be able to get better code from there - I've tried to get the examples in this post right, but the line break may cause confusion.BTW - I grabbed this stuff from all over. I've tried to credit the sources, but I may have missed some........

C++ 개발자를 위한 C#

raon_pgm — Thu, 30 Oct 2008 13:15:56 +0900

C++ 개발자를 위한 C# 이 페이지에서 다루는 특정 제품:. Microsoft Visual Studio 2005/.NET Framework 2.0 다음 제품들은 다른 버전에서 다루어 집니다. :Track('ctl00_rs1_ctl02|ctl00_rs1_ctl06',this);" href="http://msdn.microsoft.com/ko-kr/library/yyaad03b(VS.90).aspx">Microsoft Visual Studio 2008/.NET Framework 3.5 Visual C# 언어 개념 C++ 개발자를 위한 C# 다음 표에는 /clr를 사용하지 않는 네이티브 C++와 C# 사이의 중요한 차이점에 대한 비교 설명이 나와 있습니다. C++ 프로그래머의 경우 이 표를 통해 두 언어 사이의 중요한 차이점을 알 수 있습니다. 참고 .......

The Fast Pimpl Idiom

raon_pgm — Thu, 23 Oct 2008 23:48:40 +0900

http://www.gotw.ca/gotw/028.htm The Fast Pimpl IdiomDifficulty: 6 / 10 It's sometimes tempting to cut corners in the name of "reducing dependencies" or in the name of "efficiency," but it may not always be a good idea. Here's an excellent idiom to accomplish both objectives simultaneously and safely. Standard malloc() and new() calls are very expensive. In the code below, the programmer originally has a data member of type X in class Y: // file y.h #include "x.h" class Y { /*...*/ X x_; }; // file y.cpp Y::Y() {} This declaratio.......

Building a Robust Development Environment

raon_pgm — Wed, 24 Sep 2008 16:23:15 +0900

Building a Robust Development Environment Stephen presents strategies for source-code managment, build automation, and human factors—including tips on how to handle significant project change, regardless of platform. By Stephen Rylander, Dr. Dobb's Journal 9Ô 03, 2008 URL:http://www.ddj.com/architect/210300282 Stephen is a software engineer at CDW focusing on web scalability and best practices. He is also a founder of the Chicago Architects Group and can be reached at stephen@ontheheap.com. In the southwest United States, Native Americans refer to the combina.......

C Exception

raon_pgm — Tue, 26 Aug 2008 09:06:35 +0900

C++의 try{}catch(){} 형태와 유사하게 C에서 exception 처리 구현 CCL은 코드내 저작 기술내용에 준함. exceptions.h 1 /* this code provides an exception handling mechanism similar to C++'s 2 ** try, catch, and throw. exception_type handlers may be nested. 3 ** 4 ** coding format: 5 ** TRY 6 ** { 7 ** execution code goes here. 8 ** } .......

MS Windows에서 UNIX 개발환경 흉내내기.

raon_pgm — Fri, 22 Aug 2008 13:47:21 +0900

예전에도 비슷한 내용으로 포스팅 했었는데, 추가로 올려봅니다. - http://blog.naver.com/raon_pgm/140003018976아무래도 UNIX(LINUX) 환경에 익숙한 사람들은 이상한 버릇이 다른 환경에서도 그와 비슷한 환경을사용하고자 합니다.. 제가 그렇습니다..;;그래서 MS Windows 환경에서 cmd를 사용하여 program 할 때 gcc를 활용하여 coding & compiler 할 수 있게UNIX(GNU Tools)환경으로 구성하고 사용하는 방법을 간략하게 정리하였습니다.cygwin이 더 파워풀 하지만 아무래도 덩치도 크고 간단히 코딩하고 테스트 하는데는 부담스럽습니다. 잘못된 내용이나 추가 설명이 필요한 것이 있으면 덧글 바랍니다. 아래 sourceforge.net lin.......

Computer Programming and Precise Terminology

raon_pgm — Fri, 15 Aug 2008 22:52:09 +0900

Computer Programming and Precise Terminology Teaching a new programming language is difficult enough without confusing the very concepts we are trying to teach By Jack Purdum, Dr. Dobb's Journal 7?10, 2008 URL:http://www.ddj.com/cpp/208808373 Jack Purdum is an assistant professor of computer technology at Purdue University. He can be contacted at jpurdum@purdue.edu. Teaching a new programming language is difficult enough without confusing the very concepts we are trying to teach. The problem of concept confusion is compounded because the art of software development is a buildi.......

GnuWin32 Packages

raon_pgm — Thu, 14 Aug 2008 20:53:08 +0900

http://gnuwin32.sourceforge.net/packages.html GnuWin32 Packages Each package can be installed by right-clicking on the entry in the column Setup, choosing Save as... and waiting till the download window appears. Alternatively, you can click on the entry in the column Setup; if your favorite download site has been saved in a cookie, the download window will automatically appear; otherwise, follow the instructions, choose a download site, and wait till the download window appears. When the download window has appeared, you can proceed in two ways: click on Download and after downloading h.......

The Many Faces of Deadlock

raon_pgm — Fri, 08 Aug 2008 10:37:40 +0900

The Many Faces of Deadlock Deadlock can happen whenever there is a blocking (or waiting) cycle among concurrent tasks. By Herb Sutter, Dr. Dobb's Journal 7Ô 31, 2008 URL:http://www.ddj.com/cpp/209900973 Herb is a software development consultant, a software architect at Microsoft, and chair of the ISO C++ Standards committee. He can be contacted at www.gotw.ca. Quick: What is "deadlock"? How would you define it? One common answer is: "When two threads each try to take a lock the other already holds." Yes, we do indeed have a potential deadlock anytime two threads (o.......

Ellipse Specification Using Vectors

raon_pgm — Thu, 31 Jul 2008 19:07:07 +0900

Ellipse Specification Using Vectors The program Robert presents here demonstrates a method for rendering ellipses that's suited to the specific task of aligning ellipses to arbitrary curve segments using trigonometric splines. By Robert F. Kauffmann, Dr. Dobb's Journal 7Ô 25, 2008 URL:http://www.ddj.com/architect/209601027 Robert is a software engineer and award-winning independent animator. He can be reached at mathart63@gmail.com. Over the years, I've made heavy use of graphical editing programs and sometimes needed to use ellipse drawing functions........

Lock-Free Queues

raon_pgm — Sat, 12 Jul 2008 12:23:59 +0900

Lock-Free Queues One thread can write and another read—at the same time! By Petru Marginean, Dr. Dobb's Journal 7Ô 01, 2008 URL:http://www.ddj.com/cpp/208801974 Petru is a Vice President for Morgan Stanley, where he works as a C++ senior programmer in investment banking. He can be contacted at petru.marginean@gmail.com. This article as written assumes a sequentially consistent model. In particular, the code relies on specific order of instructions in both Consumer and Producer methods. However, without inserting proper memory barrier instructions, these instruc.......

Performance Portable C++

raon_pgm — Wed, 18 Jun 2008 14:15:30 +0900

Performance Portable C++ Performance portability means that code can achieve good performance across a range of computer architectures while maintaining a single body of source code. By Jeff Keasler, Dr. Dobb's Journal 5?07, 2008 URL:http://www.ddj.com/development-tools/207600622 Jeff is a computer scientist at Lawrence Livermore National Laboratory where he contributes to several software projects managed through the ASC program. Programmers have two basic ways of organizing arrays of data; see Figure 1. The performance of each choice can vary .......

Windows PowerShell

raon_pgm — Thu, 08 May 2008 08:06:23 +0900

Windows PowerShell A command-line shell and scripting language for Microsoft Windows By Doug Finke , Dr. Dobb's Journal 2Ô 27, 2008 URL:http://www.ddj.com/windows/206900601 Doug Finke works for Lab49, a company that builds advanced applications for the financial service industry. Over the last 20 years, Doug has been a developer and author working with numerous technologies. You can catch up with Doug at his blog. Microsoft PowerShell is an operating environment for commands -- cmdlets, functions, filters, scripts, aliases, and executables. PowerShel.......

The MPL Reference Manual

raon_pgm — Mon, 07 Apr 2008 11:45:09 +0900

The MPL Reference Manual Copyright: Copyright © Aleksey Gurtovoy and David Abrahams, 2001-2005. License: Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) Sequences Iterators Algorithms Metafunctions Data Types Macros Terminology Categorized Index Acknowledgements Full TOC Generated on: 2004-11-15 12:15 UTC. Generated by Docutils from reStructuredText source.

An Interview with Bjarne Stroustrup

raon_pgm — Tue, 01 Apr 2008 08:05:01 +0900

An Interview with Bjarne Stroustrup C++ creator Bjarne Stroustrup discusses the evolving C++0x standard, the education of programmers, and the future of programming. By James Buchanan, Dr. Dobb's Journal 3?27, 2008 URL:http://www.ddj.com/cpp/207000124 JB: When did you first become interested in computing, what was your first computer and what was the first program you wrote? BS: I learned programming in my second year of university. I was signed up to do "mathematics with computers science" from the start, but I don't really remember why. I suspect that I (erroneously.......

Logging in C++ source code

raon_pgm — Thu, 07 Feb 2008 20:12:44 +0900

LogManager.h 1 /*------------------------------------------------------------------------------------ 2 * finename : LogManager.h 3 * eng'r name : Jeong-il Ahn(raon_pgm@naver.com) 4 source code : ddj -> http://www.ddj.com/cpp/201804215 5 *-----------------------------------------------------------------------------------*/ 6 7 #ifndef __LOGMANAGER_H__ 8 #define __LOGMANAGER_H__ 9 10 #include