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ã›ã‚Šã‹å¼ - C è¨€èªžãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ« - æ–‡å—åˆ— Cè¨€èªžã¨ã¯ç›´æŽ¥é–¢ä¿‚ã‚ã‚Šã¾ã›ã‚“ãŒï¼Œæ–‡å—åˆ—ã«é–¢ã™ã‚‹åŸºç¤ŽçŸ¥è˜ã§ã™ï¼Ž ç›®æ¬¡ æ–‡å—åˆ—ã¨ã¯ æ–‡å—ã‚³ãƒ¼ãƒ‰ JIS Shift_JIS EUC-JP Unicode(UTF-8) Unicode(UTF-16) æ–‡å—ã‚³ãƒ¼ãƒ‰ã®åˆ¤æ– æ–‡å—åˆ—ã¨ã¯ ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãŒæ‰±ãˆã‚‹ã®ã¯0ã¨1ã®ãƒ“ãƒƒãƒˆåˆ—ã®ã¿ã§ã™ï¼Ž ã“ã®ãƒ“ãƒƒãƒˆåˆ—ã‚’ã©ã®ã‚ˆã†ã«è§£é‡ˆã™ã‚‹ã‹æ±ºã‚ãŸã‚‚ã®ãŒåŸºæœ¬ãƒ‡ãƒ¼ã‚¿åž‹ã«ãªã‚Šã¾ã™ãŒï¼Œ åŸºæœ¬ãƒ‡ãƒ¼ã‚¿åž‹ã®ä¸ã«ï¼Œæ–‡å—ã¨ã„ã†æ¦‚å¿µã¯ã‚ã£ã¦ã‚‚ï¼Œæ–‡å—åˆ—ã¨ã„ã†æ¦‚å¿µã¯ã‚ã‚Šã¾ã›ã‚“ï¼Ž ãã®ãŸã‚ï¼Œã“ã®æ–‡å—ã¨ã„ã†æ¦‚å¿µã‚’ä¸¦ã¹ã‚‹ã“ã¨ã§æ–‡å—åˆ—ã¨ã—ã¦æ‰±ã†ã“ã¨ã«ãªã‚Šã¾ã™ï¼Ž ã•ã¦ï¼Œãƒ‡ãƒ¼ã‚¿åž‹ã®ä¸ã«æ–‡å—ã¨ã„ã†æ¦‚å¿µã¯ã‚ã‚Šã¾ã™ãŒï¼Œã“ã‚Œã¯ï¼Œ1æ–‡å—1ãƒã‚¤ãƒˆã®ASCIIã‚³ãƒ¼ãƒ‰ã‚’æ‰±ãˆã‚‹ãƒ‡ãƒ¼ã‚¿åž‹ã§ã™ï¼Ž ãã®ãŸã‚ï¼Œãƒžãƒ«ãƒãƒã‚¤ãƒˆæ–‡å—ï¼ˆ2ãƒã‚¤ãƒˆä»¥ä¸Šã®æ–‡å—ï¼‰ã§ã‚ã‚‹æ—¥æœ¬èªžã¯ï¼Œã“ã®åŸºæœ¬åž‹ã§ã‚ã‚‹æ–‡å—ã§ã¯æ‰±ã†ã“ã¨ãŒã§ãã¾ã›ã‚“ï¼Ž ã§ã¯ï¼Œã©ã®ã‚ˆã†ãªãƒ“ãƒƒ
syou6162 2010/11/24
c

æ–‡å—ã‚³ãƒ¼ãƒ‰
ãƒªãƒ³ã‚¯
ãƒ¢ãƒ€ãƒ³ãªC, C++ã®é–‹ç™ºç’°å¢ƒã®æ§‹ç¯‰æ–¹æ³• - è€ƒãˆã‚‹äººã€ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãäºº
ã¾ã C, C++ãŒãªã„ã‚ˆã†ãªã®ã§æ›¸ã„ã¦ã¿ãŸã€‚ä¸»ã«Linux(Debianã¨ã‹Ubuntu)ã§ã®ç’°å¢ƒæ§‹ç¯‰ã«ã¤ã„ã¦ã€‚ ã‚³ãƒ³ãƒ‘ã‚¤ãƒ© ã¾ãšã¯apt-getã§ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã€‚Ubuntuã‚„Debianãªã‚‰ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã§gccã‚„g++ãŠã‚ˆã³æ¨™æº–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªç‰ãŒã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã‚‹ã€‚ $ sudo apt-get install build-essential ãƒ‡ãƒãƒƒã‚°ãƒ„ãƒ¼ãƒ« ãƒ‡ãƒãƒƒã‚¬ãŠã‚ˆã³ãƒ‡ãƒãƒƒã‚°ãƒ„ãƒ¼ãƒ«ã¯å°‘ãªãã¨ã‚‚ä»¥ä¸‹ã®ä¸‰ã¤ã¯å…¥ã‚Œã‚‹ã€‚(ã‚ã¨ltraceã‚‚æ¬²ã—ã„ã‹ãªï¼Ÿ) GDB è¨€ã‚ãšã¨çŸ¥ã‚ŒãŸGNUã®ãƒ‡ãƒãƒƒã‚¬ Valgrind ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ã‚„ä¸æ£ãƒ¡ãƒ¢ãƒªã‚¢ã‚¯ã‚»ã‚¹ã®æ¤œå‡º strace ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã®ãƒˆãƒ¬ãƒ¼ã‚¹ $ sudo apt-get install gdb valgrind strace ãƒ“ãƒ«ãƒ‰ãƒ„ãƒ¼ãƒ« C, C++ã®ãƒ“ãƒ«ãƒ‰ãƒ„ãƒ¼ãƒ«ã¨ã„ãˆã°ã¾ãšmakeãŒæµ®ã‹ã¶ã‘ã©ã€æœ€è¿‘ã§ã¯SConsã‚„CMak
syou6162 2010/08/01
gdb

c++

c
ãƒªãƒ³ã‚¯
http://www1.doshisha.ac.jp/~mjin/R/2007BR/ISHIDA.pdf
syou6162 2010/03/16
çŸ³ç”°å…ˆç”Ÿã®è³‡æ–™

r

mecab

C
ãƒªãƒ³ã‚¯
Tokyo Cabinetã‚’è©¦ã—ã¦ã¿ã‚‹Â :Â kishi-r.com
Tokyo Cabinetç¬¬1ç‰ˆåŸºæœ¬ä»•æ§˜æ›¸ã«æ›¸ã‹ã‚Œã¦ã„ã‚‹ã‚µãƒ³ãƒ—ãƒ«ã‹ã‚‰ã€è©¦ã—ã¦ã¿ã‚‹äº‹ã«ã™ã‚‹ã€‚ è©¦ã—ãŸã‚³ãƒ¼ãƒ‰ã¯ãƒãƒƒã‚·ãƒ¥ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’ä½¿ã£ãŸã‚³ãƒ¼ãƒ‰ä¾‹ ã¾ãšä¸‹è¨˜ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’tchdb.cã¨ã„ã†ãƒ•ã‚¡ã‚¤ãƒ«ã§ä¿å˜ã—ãŸã€‚ #include <tcutil.h> #include <tchdb.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> int main(int argc, char **argv){ TCHDB *hdb; int ecode; char *key, *value; /* ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ä½œæˆã™ã‚‹ */ hdb = tchdbnew(); /* ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’é–‹ã */ if(!tchdbopen(hdb, "casket.hdb", HDBOWRITER | HDBOCREAT)){ ecode = tc
syou6162 2010/03/16
TokyoCabinet

C
ãƒªãƒ³ã‚¯
Cè¨€èªžã§ã¯ signed ã¨ unsigned ã®é•ã„ã§æŒ™å‹•ãŒã“ã‚“ãªã«ã‚‚å¤‰ã‚ã‚‹ï¼ | æ ªå¼ä¼šç¤¾ã‚·ãƒ³ãƒ¡ãƒˆãƒªãƒƒã‚¯å…¬å¼ãƒ–ãƒã‚° - æºå¸¯é–‹ç™ºã‹ã‚‰ç”Ÿã¾ã‚Œã‚‹æŠ€è¡“æƒ…å ±
Cè¨€èªžã§ã¯ signed ã¨ unsigned ã®é•ã„ã§æŒ™å‹•ãŒã“ã‚“ãªã«ã‚‚å¤‰ã‚ã‚‹ï¼|æ ªå¼ä¼šç¤¾ã‚·ãƒ³ãƒ¡ãƒˆãƒªãƒƒã‚¯å…¬å¼ãƒ–ãƒã‚° - æºå¸¯é–‹ç™ºã‹ã‚‰ç”Ÿã¾ã‚Œã‚‹æŠ€è¡“æƒ…å ±| æºå¸¯ã‚µã‚¤ãƒˆé–‹ç™ºã‹ã‚‰ç”Ÿã¾ã‚Œã‚‹æŠ€è¡“æƒ…å ±ãƒ–ãƒã‚° é€šå¸¸ã®æ¥å‹™ã¨ã¯åˆ¥ã«Cè¨€èªžã‚’å°‘ã—ãšã¤å‹‰å¼·ã—ã¦ã„ã¾ã™ã€‚Cè¨€èªžã®é¬¼é–€ã¨è¨€ã‚ã‚Œã‚‹ãƒã‚¤ãƒ³ã‚¿ã®å‹•ãã‚‚ã‚ã‚‹ç¨‹åº¦ç†è§£ã—ã€æ§‹é€ ä½“ã€ç·šå½¢ãƒªã‚¹ãƒˆã‚„ãƒãƒƒã‚·ãƒ¥ãªã©ã‚’ä½¿ã£ãŸç°¡å˜ãªãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ã‘ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ã—ã‹ã—ã€Cè¨€èªžã¨ã—ã¦ã‹ãªã‚Šåˆæ©çš„ãªã“ã¨ã«ã‚‚é–¢ã‚ã‚‰ãšã€ä»Šã¾ã§ã‚ã‚“ã¾ã‚Šæ„è˜ã›ãšã«ã„ãŸãŸã‚ã«è‡´å‘½çš„ãªæ€ã„é•ã„ã‚’ã—ãŸã¾ã¾ã ã£ãŸäº‹ãŒå¹¾ã¤ã‹ã‚ã‚Šã¾ã™ã€‚ä»Šå›žã¯ãã®ä¸ã§ã‚‚ã‹ãªã‚Šåˆæ©çš„ã§ã€Cè¨€èªžã‚’å‹‰å¼·ã—ãŸäººã®å¤šãã¯åŒã˜ã‚ˆã†ãªç–‘å•ã‚’æŠ±ã„ãŸã®ã§ã¯ãªã„ã‹ã¨æ€ã†ã“ã¨ã«ã¤ã„ã¦æ›¸ãã¾ã™ã€‚ çš†ã•ã‚“ã¯çŸ¥ã£ã¦ã¾ã—ãŸã‹ï¼ŸCè¨€èªžã§ã¯å¿…ãšã—ã‚‚ã€€100+100ï¼200ã«ãªã‚‰ãªã„ã£ã¦ã€‚ Cè¨€èªžã§ã¯å¿…ãšã—ã‚‚ 100+100 = 200ã§ã¯ãªã„ï¼ï¼Ÿ ã¾ãšåˆã‚ã«10
syou6162 2010/03/01
C
ãƒªãƒ³ã‚¯
http://chasen.org/~taku/blog/archives/2005/10/treehh_1.html
syou6162 2009/10/31
ã»ã†ã»ã†

algorithm

C

c++
ãƒªãƒ³ã‚¯
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Cè¨€èªžåˆå¿ƒè€…å‘ã‘ãƒ¡ãƒ¢ï¼Ž åƒ•ã¯ãƒ•ã‚¡ã‚¤ãƒ«å‡¦ç†ã‚’ã™ã‚‹å ´åˆã«ã¯fgetsã‚’å¤šç”¨ã™ã‚‹ã®ã ã‘ã‚Œã©ï¼Œãã®éš› #define BUFFLEN 102400 char buff[ BUFFLEN ]; ã¨ã‹ï¼Œã‚¹ã‚¿ãƒƒã‚¯é ˜åŸŸã«ä¹—ã‚‰ãªã„ç¨‹å¤§ããªé ˜åŸŸã§ã‚ã‚Œã° char *buff = malloc(sizeof(char) * BUFFLEN); ã¨ã„ã†ã‚ˆã†ã«ã‚†ã¨ã‚Šé ˜åŸŸã‚’ç”¨æ„ã—ã¦ã—ã¾ã†ï¼Ž fgetsã§ä¸€è¡Œãšã¤å‡¦ç†ã‚’è¡Œã„ãŸã„å ´åˆã«ã¯ï¼Œä¸Šè¨˜buffã®å¤§ãã•ã¯ãƒ•ã‚¡ã‚¤ãƒ«ã«ãŠã‘ã‚‹æœ€å¤§å¹…ã‚ã‚Œã°ååˆ†ï¼ŽãŸã ã—ï¼Œæœ€å¤§å¹…ã‚’çŸ¥ã‚‹ãŸã‚ã«ã¯ä¸€åº¦ãƒ•ã‚¡ã‚¤ãƒ«ã‚’èµ°æŸ»ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ï¼Žã¨ã„ã†ã‚ã‘ã§ãƒ•ã‚¡ã‚¤ãƒ«ã®è¡Œã‚ãŸã‚Šã®æœ€å¤§æ–‡å—å¹…ã‚’æ±ºã‚ã¦ã‹ã‚‰ï¼Œãƒãƒƒãƒ•ã‚¡ã‚’ç”¨æ„ã—ã¦fgetsã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’èªã¿è¾¼ã‚€ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã„ã¦ã¿ãŸï¼Ž ãã®éš›ã«ã€Œã‚ï¼Œã“ã‚Œã¯ãƒãƒžã‚Šãã†ã ãªã€ã¨ã„ã†ç‚¹ã«æ°—ãŒã¤ã„ãŸã®ã§ãƒ¡ãƒ¢ï¼Ž ã“ã‚“ãªæ„Ÿã˜ã§fgetcã‚’ä½¿ã£ã¦å¹…ã‚’èª¿ã¹ã‚‹ï¼Ž #include <stdio.h
syou6162 2009/10/15
C
ãƒªãƒ³ã‚¯
Part4 èª°ã‚‚ãŒã¤ã¾ãšããƒã‚¤ãƒ³ã‚¿ã‚’å®Œç’§ç†è§£
Cè¨€èªžã®ãƒã‚¤ãƒ³ã‚¿ã¯é›£ã—ã„ã¨è¨€ã‚ã‚Œã¾ã™ã€‚ã—ã‹ã—ï¼Œãƒã‚¤ãƒ³ã‚¿ã«ã¤ã„ã¦è¦šãˆã‚‹ã¹ãæ–‡æ³•ã¯ï¼Œãã‚Œã»ã©å¤šãã¯ã‚ã‚Šã¾ã›ã‚“ã€‚Cã‚’å‹‰å¼·ã—ã¦ãã¦ï¼Œãƒã‚¤ãƒ³ã‚¿ã®ã¨ã“ã‚ã§ã¤ã¾ãšã„ãŸã¨ã„ã†å ´åˆã§ã‚‚ã€Œï¼†ã‚„ï¼Šãªã©ã®ãƒã‚¤ãƒ³ã‚¿ã«é–¢ã™ã‚‹æ–‡æ³•ã¯ã‚ã‹ã‚‹ã®ã ã‘ã‚Œã©ã€ã¨ã„ã†äººã¯å¤šã„ã§ã—ã‚‡ã†ã€‚ã‚€ã—ã‚ï¼Œãƒã‚¤ãƒ³ã‚¿ã§é›£ã—ã„ã®ã¯ï¼Œãã®è€ƒãˆæ–¹ã«ã‚ã‚Šã¾ã™ã€‚ è€ƒãˆæ–¹ã•ãˆã‚ã‹ã£ã¦ã—ã¾ãˆã°ï¼Œãƒã‚¤ãƒ³ã‚¿ã¯ãã‚Œã»ã©é›£ã—ã„ã‚‚ã®ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ã‚‚ã—ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’èªã‚“ã§ã„ã¦ï¼Œãƒã‚¤ãƒ³ã‚¿ã®å‹•ä½œãŒç†è§£ã§ããªã„å ´é¢ãŒã‚ã£ãŸã‚‰ï¼Œãã®ãƒã‚¤ãƒ³ã‚¿ãŒã€Œä½•ã®æ©Ÿèƒ½ã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã«ä½¿ã‚ã‚Œã¦ã„ã‚‹ã‹ã€ã‚’è€ƒãˆã¦ã¿ã‚‹ã“ã¨ãŒç†è§£ã«ã¤ãªãŒã‚Šã¾ã™ã€‚ã“ã®ç‰¹é›†ã§ã¯ï¼Œè€ƒãˆæ–¹ã«é‡ç‚¹ã‚’ç½®ã„ã¦ãƒã‚¤ãƒ³ã‚¿ã‚’èª¬æ˜Žã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ Cã§ã¯ãƒã‚¤ãƒ³ã‚¿ã¯å¿…é ˆ èªè€…ã®ä¸ã«ã¯ï¼ŒJavaã‚„C#ï¼ŒPerlãªã©ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã‚’ä½¿ã£ã¦ã„ã‚‹äººã‚‚ã„ã‚‹ã§ã—ã‚‡ã†ã€‚ã“ã‚Œã‚‰ã‚’ã¯ã˜ã‚ã¨ã™ã‚‹å¤šãã®è¨€èªžã§ã¯ï¼Œãƒã‚¤ãƒ³ã‚¿ã¨ã„ã†ã‚‚ã®ã¯ç„¡ã„ã‹ï¼Œã‚ã£ãŸã¨ã—ã¦ã‚‚ï¼Œã‚
syou6162 2009/09/13
c++

C

ãƒã‚¤ãƒ³ã‚¿
ãƒªãƒ³ã‚¯
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é™çš„ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ãƒªãƒ³ã‚¯æ™‚ã«undefined referenceã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹(gcc) æ¦‚è¦ gccã§ãƒªãƒ³ã‚¯æ™‚ã«undefined referenceã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹å ´åˆãŒã‚ã‚‹ã€‚ é€šå¸¸ã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚„ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®æŒ‡å®šå¿˜ã‚ŒãŒåŽŸå› ã§ã‚ã‚‹ãŒã€ é™çš„ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’ãƒªãƒ³ã‚¯ã™ã‚‹é †ç•ªã«é–“é•ã„ãŒã‚ã£ã¦å‡ºã‚‹å ´åˆã‚‚ã‚ã‚‹ (è‡ªåˆ†ã§Makefileã‚’æ›¸ãå ´åˆã«ã“ã®ãƒŸã‚¹ã‚’ã™ã‚‹ã“ã¨ãŒå¤šã„) ãƒªãƒ³ã‚¯ã®é †ç•ªã«ã¯ä¾å˜æ€§ãŒã‚ã‚Šã€ã‚ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒé™çš„ ãƒ©ã‚¤ãƒ–ãƒ©ãƒªå†…ã®é–¢æ•°ã‚’å‘¼ã³å‡ºã™ã¨ãã«ã¯å‘¼ã³å‡ºã•ã‚Œã‚‹å´ã® ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã¯ã€Œå¾Œã§ã€ãƒªãƒ³ã‚¯ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã€‚ ä¾‹ãˆã° foo.o ãŒé™çš„ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã€€libfoo.a å†…ã®é–¢æ•°ã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã€ã¤ã¾ã‚Š foo.oã€€â†’ã€€libfoo.a ã¨ã„ã†ä¾å˜é–¢ä¿‚ãŒã‚ã‚‹ã¨ãã€ g++ -o foo libfoo.a foo.o ã¨ã™ã‚‹ã¨undefined referenceã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹ã€‚å¾“ã£ã¦ g++ -o fo
syou6162 2009/09/06
c++

C

lib

linux

makefile

gcc
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syou6162 2009/09/04
c++

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Programming_C - Rã¨Linuxã¨...
syou6162 2009/04/10
c

c++
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Rã®å‚™å¿˜éŒ² strTest.c #include <R.h> #include <Rdefines.h> SEXP makeStr() { SEXP str; PROTECT(str=allocVector(STRSXP,5)); SET_STRING_ELT(str, 0, mkChar("A")); SET_STRING_ELT(str, 1, mkChar("B")); SET_STRING_ELT(str, 2, mkChar("C")); SET_STRING_ELT(str, 3, mkChar("D")); SET_STRING_ELT(str, 4, mkChar("E")); UNPROTECT(1); return str; } # R CMD SHLIB strTest.c > dyn.load("strTest.so") > .Call("makeStr")
syou6162 2009/04/06
r

C
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http://www.biostat.jhsph.edu/~bcaffo/statcomp/files/cprog1_ho.pdf
syou6162 2009/02/25
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syou6162 2009/02/22
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syou6162 2009/01/17
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syou6162 2006/09/03
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syou6162 2006/09/03
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