steloflute

http://woogyun.tistory.com/200 Visual Studio 2005를 이용하여 파일 입출력을 수행하다가 보니 다음과 같은 경고 메시지가 나왔다. warning C4996: 'fscanf': This function or variable may be unsafe. Consider using fscanf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 내용을 읽어 보면 fscanf는 안전하지 않으니 fscanf_s를 사용하라는 말이다. 그리고 친절하게도 이 경고를 없애려면 _CRT_SECURE_NO_WARNINGS를 사용하라고 한다. 어떻게 사용하라는 말인가? 컴 파일할..

http://journal.stuffwithstuff.com/2013/12/08/babys-first-garbage-collector/ Baby's First Garbage Collector December 08, 2013 — c, code, language When I get stressed out and have too much to do, I have this paradoxical reaction where I escape from that by coming up with another thing to do. Usually it’s a tiny self-contained program that I can write and finish. The other morning, I was freaking m..

http://www.johndcook.com/blog/2009/08/24/algorithms-convert-color-grayscale/ Three algorithms for converting color to grayscale Posted on 24 August 2009 by John How do you convert a color image to grayscale? If each color pixel is described by a triple (R, G, B) of intensities for red, green, and blue, how do you map that to a single number giving a grayscale value? The GIMP image software has t..

; synchronously (defun get-url (url) (with-current-buffer (url-retrieve-synchronously url) (buffer-string))) (print (get-url "http://www.gnu.org")) ; asynchronously (defun print-url (url) (url-retrieve url (lambda (a) (print a)))) (print-url "http://www.gnu.org") ReferencesRetrieving URLs | http://www.gnu.org/software/emacs/manual/html_node/url/Retrieving-URLs.html Current Buffer | http://www.gn..

0. An Introduction to Programming in Emacs Lisp 이것은 Emacs에도 내장되어 있습니다. (Help -> More Manuals -> Introduction to Emacs Lisp) 1. IELM: Inferior Emacs Lisp Mode IELM은 Emacs Lisp REPL입니다. emacs 실행 후, M-x ielm RET *** Welcome to IELM *** Type (describe-mode) for help. ELISP> (+ 1 2) 3 ELISP> (setq a 3) 3 2. Emacs 시작시 바로 IELM을 띄우고 싶다 shell prompt에서: emacs -f ielm 3. Emacs Lisp script를 shell에서 바로 실행하고 ..

#include #include int fib(int n){ if(n

http://www.cplusplus.com/reference/cstdio/BUFSIZ/ constant BUFSIZ Buffer size This macro constant expands to an integral expression with the size of the buffer used by the setbuf function. See also setbufSet stream buffer (function )

http://coding.debuntu.org/c-linux-socket-programming-tcp-simple-http-client Linux provide a high level socket API that will allow programmer to easily connect to any TCP or UDP services. In this tutorial, we will see how this works by implementing a simple HTTP client which will get request a web page given the hostname and the page name, then read the server answer and output the HTML content o..

http://stackoverflow.com/questions/3560649/how-to-display-clojure-version-in-repl user> (clojure-version) "1.2.0-beta1" user> *clojure-version* => {:major 1, :minor 3, :incremental 0, :qualifier nil}

paren 의 to_string 함수에서 stringstream 을 사용하지 않고 sprintf 로 바꾸니 2배 빨라졌다. 숫자를 문자열로 변환시 stringstream 은 사용하면 안 된다.