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[C++]CRTP(Curiously recurring template pattern)ã€€ã†ãšã¾ã ã® ãªã‚“ã¨ãªãã§ã„ã„ã®ã‹ã‚‚ï¼Ÿ
ATLãƒ©ã‚¤ãƒ–ãƒ©ãƒªç‰ã§ä½¿ç”¨ã•ã‚Œã¦ã„ã‚‹ã€è‡ªãƒã‚¤ãƒ³ã‚¿ã‚’åŸºåº•ã‚¯ãƒ©ã‚¹ã«æ¸¡ã™C++ã®templateã®æ‰‹æ³•ã‚’èª¬æ˜Žã—ã¾ã™ã€‚ â€»ï¼‰å‹•ä½œç¢ºèªã¯VC8(VisualStudio2005)ã§è¡Œã„ã¾ã—ãŸã€‚ ã‚¯ãƒ©ã‚¹ã‚’ç¶™æ‰¿ã—ã¦æŒ¯ã‚‹èˆžã„ã‚’å¤‰ãˆãŸã„å ´åˆã¯ã€ä»®æƒ³ã‚¯ãƒ©ã‚¹ã«ã—ã¦å¤‰æ›´ã—ãŸã„é–¢æ•°ã‚’ç¶™æ‰¿å…ˆã§OverWriteã™ã‚‹ã®ãŒæ™®é€šã§ã™ãŒã€CRTPã‚’ä½¿ç”¨ã™ã‚Œã°ä»®æƒ³ã‚¯ãƒ©ã‚¹ã«ã›ãšã¨ã‚‚ç¶™æ‰¿å…ˆã§å‡¦ç†ã®å¤‰æ›´ã‚’ã™ã‚‹ã“ã¨ãŒå¯èƒ½ã§ã™ã€‚ ã§ã¯ã©ã†è¨€ã†æ™‚ã«ãã®ã‚ˆã†ãªäº‹ã‚’ç™ºç”Ÿã•ã›ãŸã„ã‹ã¨è¨€ã†ã¨ã€ä¸‹è¨˜ã®ï¼’ç‚¹ã§ã¯ãªã„ã‹ã¨æ€ã„ã¾ã™ã€‚ ãƒ»å‹•çš„ã«ç¶™æ‰¿å…ˆã‚¯ãƒ©ã‚¹ã‚’åˆ‡ã‚Šæ›¿ãˆã‚‹ã®ã§ã¯ãªãã€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«æ™‚ã«åž‹ãŒç¢ºå®šã—ã¦ã„ã‚‹æ™‚ã€‚ ãƒ»ã‚¤ãƒ³ãƒ©ã‚¤ãƒ³å±•é–‹ã‚’è¡Œã„ãŸã„æ™‚ã€‚ æ™®é€šã®å ´åˆã§ã™ã¨å¯èªæ€§ã‚’å„ªå…ˆã—ã¦ã€ä¸Šè¨˜ã®å ´åˆã§ã‚‚ä»®æƒ³ã‚¯ãƒ©ã‚¹ã¨ã™ã¹ããªã®ã§ã—ã‚‡ã†ãŒã€è‰²ã€…åˆ¶ç´„ãŒå‡ºã¦ããŸå ´åˆã«ä»Šå›žã®ä»•çµ„ã¿ã‚’çŸ¥ã£ã¦ã„ã‚‹ã¨æ¥½ã«ãªã‚‹å ´åˆãŒå¤šã€…ã‚ã‚‹ã¨æ€ã„ã¾ã™ã€‚ åŸºåº•ã‚¯ãƒ©ã‚¹(template) /** * å…±é€š
mattn 2010/07/30
crtp

c++
ãƒªãƒ³ã‚¯
è‡ªå·±è¨€åŠçš„ãªãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆ (ãã®2) - C++ Labyrinth
è‡ªå·±è¨€åŠçš„ãªãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆ (ãã®2) ä»¥å‰ã€ã€Œè‡ªå·±è¨€åŠçš„ãªãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆã€ ã¨ã„ã†è¨˜äº‹ã‚’æ›¸ã„ãŸãŒã€ä»Šå›žã¯ãã®è£œè¶³ã§ã‚ã‚‹ã€‚ å‰å›žã€äº‹å‰ã«å®šç¾©ã•ã‚Œã¦ã„ã‚‹ãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆã§ä½¿ç”¨ã—ãŸã®ã¯ã€ æœ€çµ‚çš„ã«å®šç¾©ã•ã‚Œã‚‹ã‚¯ãƒ©ã‚¹ã®ãƒã‚¤ãƒ³ã‚¿ã ã‘ã ã£ãŸã®ã§ã€ template<class T> class X { public: T* foo() { } }; class A : public X <A> { }; ã“ã®ã‚ˆã†ãªè‡ªå·±è¨€åŠçš„ãªæ›¸ãæ–¹ãŒå¯èƒ½ãªã®ã ã¨æ€ã£ã¦ã„ãŸã€‚ ã§ã‚‚ã€å®Ÿã¯æ¬¡ã®ã‚ˆã†ãªä½¿ã„æ–¹ã‚‚å¯èƒ½ãªã®ã§ã‚ã£ãŸã€‚ template<class T> class X { public: static size_t getSize() { return sizeof(T); } }; class A : public X <A> { int x; }; int main() { cout ã“ã“ã§ã¯ã€class A ã®æœ¬
mattn 2010/07/30
crtp

c++
ãƒªãƒ³ã‚¯
More C++ Idioms/å¥‡å¦™ã«å†å¸°ã—ãŸãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆãƒ‘ã‚¿ãƒ¼ãƒ³(Curiously Recurring Template Pattern) - Wikibooks
æ„å›³[ç·¨é›†] æ´¾ç”Ÿã‚¯ãƒ©ã‚¹è‡ªèº«ã‚’ãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆå¼•æ•°ã¨ã—ã¦ã€åŸºæœ¬ã‚¯ãƒ©ã‚¹ã‚’ç‰¹æ®ŠåŒ–ã™ã‚‹ã€‚ åˆ¥å[ç·¨é›†] CRTP ä¸Šã‹ã‚‰ã®æ··å…¥(Mixin-from-above) å‹•æ©Ÿ[ç·¨é›†] åž‹ã«ã¯ä¾å˜ã—ãªã„ãŒã€åž‹åˆ¥ã«ã‚«ã‚¹ã‚¿ãƒžã‚¤ã‚ºå¯èƒ½ãªæ©Ÿèƒ½ã‚’åŸºæœ¬ã‚¯ãƒ©ã‚¹ã‹ã‚‰æŠ½å‡ºã—ã€ãã‚Œã‚‰ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ã€å±žæ€§ã€å‹•ä½œã‚’æ´¾ç”Ÿã‚¯ãƒ©ã‚¹ç”¨ã«ã‚«ã‚¹ã‚¿ãƒžã‚¤ã‚ºã—ã¦ã‹ã‚‰ã€æ´¾ç”Ÿã‚¯ãƒ©ã‚¹ã«æ··å…¥(mix-in)ã•ã›ã‚‹ã€‚ è§£æ³•ã¨ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰[ç·¨é›†] å…¸åž‹çš„ã«ã¯ã€åŸºæœ¬ã‚¯ãƒ©ã‚¹ãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆã¯ã€ãƒ¡ãƒ³ãƒé–¢æ•°ã®æœ¬ä½“(å®šç¾©)ã¯ãã®å®£è¨€ã‹ã‚‰éžå¸¸ã«å¾Œã«ãªã‚‹ã¾ã§ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹åŒ–ã•ã‚Œãªã„ã¨ã„ã†äº‹å®Ÿã‚’æ´»ç”¨ã™ã‚‹ã€‚ãã—ã¦ã€ãã®ãƒ¡ãƒ³ãƒé–¢æ•°ä¸ã§æ´¾ç”Ÿã‚¯ãƒ©ã‚¹ã®ãƒ¡ãƒ³ãƒé–¢æ•°ã‚’ã€static_castçµŒç”±ã§åˆ©ç”¨ã™ã‚‹ã€‚ä¾‹ãˆã° template <class Derived> struct base { void interface() { // ... static_cast<Derived*>(this
mattn 2009/07/07
c++

crtp
ãƒªãƒ³ã‚¯
2004-06-05
CRTPã«ã¤ã„ã¦ã¡ã¾ã¡ã¾æ›¸ã„ã¦ã„ãŸã®ã‚’ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸï¼Ž CRTPï¼ˆCuriously Reccursive/Reccuring Template Patternï¼‰ã¨ã¯ä»¥ä¸‹ã®ã‚ˆã†ã«åŸºåº•ã‚¯ãƒ©ã‚¹ã®ãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆå¼•æ•°ã¨ã—ã¦è‡ªåˆ†è‡ªèº«ã‚’ä»£å…¥ã™ã‚‹ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ã®ã“ã¨ã‚’æŒ‡ã—ã¾ã™ï¼Ž template class Base{/*.....*/}; class C : public Base{/*.....*/}; ã‚ˆãè¦‹ã‹ã‘ã‚‹ãƒ‘ã‚¿ãƒ¼ãƒ³ãªã®ã§ï¼Œã“ã‚ŒãŒã©ã†ã„ã†ä½¿ã‚ã‚Œæ–¹ã‚’ã—ã¦ã„ã‚‹ã‹ã‚’é©å½“ã«ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸï¼Ž ã‚ã‚‹ã‚¯ãƒ©ã‚¹ã®æ©Ÿèƒ½ã®ä¸€éƒ¨ã‚’å¤‰ãˆã¦ã‚³ãƒ¼ãƒ‰ã®å†åˆ©ç”¨ã‚’è¡Œã†å ´åˆï¼Œå¤‰ãˆãŸã„æ©Ÿèƒ½ã‚’æä¾›ã™ã‚‹ãƒ¡ãƒ³ãƒé–¢æ•°ã‚’ä»®æƒ³é–¢æ•°ã«ã—ã¦ãã‚Œã‚’æ´¾ç”Ÿã‚¯ãƒ©ã‚¹ã§ã‚ªãƒ¼ãƒãƒ¼ãƒ©ã‚¤ãƒ‰ã™ã‚‹ã®ãŒé€šå¸¸ã®æ–¹æ³•ã§ã™ãŒï¼ŒCRTPã‚’ä½¿ãˆã°ä»®æƒ³é–¢æ•°ã‚’ç”¨ã„ãšã«è¡Œã†ã“ã¨ãŒã§ãã¾ã™ï¼Ž è‡ªåˆ†ã§ä½•ã‹è‰¯ã•ãã†ãªä¾‹ã‚’æ›¸ã“ã†ã¨æ€ã£ãŸã®ã§ã™ãŒï¼Œã‚ã‚“ã¾ã‚Šé©åˆ‡ãªä¾‹ãŒæ€ã„æµ®ã‹ã°ãªã„ã®ã§ï¼Œã“ã®CRTP
mattn 2009/07/06
c++

crtp
ãƒªãƒ³ã‚¯
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[C++]CRTP(Curiously recurring template pattern)ã€€ã†ãšã¾ã ã® ãªã‚“ã¨ãªãã§ã„ã„ã®ã‹ã‚‚ï¼Ÿ

è‡ªå·±è¨€åŠçš„ãªãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆ (ãã®2) - C++ Labyrinth

More C++ Idioms/å¥‡å¦™ã«å†å¸°ã—ãŸãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆãƒ‘ã‚¿ãƒ¼ãƒ³(Curiously Recurring Template Pattern) - Wikibooks

2004-06-05

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crtpã«é–¢ã™ã‚‹mattnã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (4)

[C++]CRTP(Curiously recurring template pattern)ã€€ã†ãšã¾ã ã® ãªã‚“ã¨ãªãã§ã„ã„ã®ã‹ã‚‚ï¼Ÿ

è‡ªå·±è¨€åŠçš„ãªãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆ (ãã®2) - C++ Labyrinth

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