[B! C] moozã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

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Cã«é–¢ã™ã‚‹moozã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (155)

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restrictã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ - yohhoyã®æ—¥è¨˜
C99ã§è¿½åŠ ã•ã‚ŒãŸ restrict ã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã«ã¤ã„ã¦ã®ãƒ¡ãƒ¢ã€‚ ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã«å¯¾ã—ã¦ã€ŒaliasãŒå˜åœ¨ã—ãªã„ã¨ä»®å®šã—ãŸæœ€é©åŒ–ã‚’è¨±ã™ã€ã¨ä¼ãˆã‚‹ãŸã‚ã®ã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã€‚C99ä»¥é™ã§ã®ã¿æœ‰åŠ¹ãªã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã§ã‚ã‚Šã€C++11ç¾åœ¨ã§ã‚‚C++ã«ã¯åŒã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ãŒå˜åœ¨ã—ãªã„ã€‚ï¼ˆãŸã ã—ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã®ç‹¬è‡ªæ‹¡å¼µã¨ã—ã¦ã€C++è¨€èªžã§ã‚‚restirctã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã‚’ä½¿ãˆã‚‹ã‚±ãƒ¼ã‚¹ã¯ã‚ã‚‹ã€‚ï¼‰ è¦ç´„ï¼š æ§‹æ–‡çš„ã«ã¯constã‚„volatileã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã¨åŒåˆ—ã§ã€ãƒã‚¤ãƒ³ã‚¿åž‹ã«å¯¾ã—ã¦ã®ã¿åž‹ä¿®é£¾ã‚’è¡Œãˆã‚‹ã€‚int * restrictãªã©ã€‚restrict intã‚„int restrict *ã¯ill-formed*1ã€‚ ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã§ã®æœ€é©åŒ–ã‚’åŠ©ã‘ã‚‹ãŸã‚ã®ã‚‚ã®ã€‚restrictã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã‚’å‰Šé™¤ã—ã¦ã‚‚ãƒ—ãƒã‚°ãƒ©ãƒ ã®æ„å‘³ã¯å¤‰åŒ–ã—ãªã„ã€‚ ç”¨æ³•ã¨æ„å‘³ restrictã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ã®ç”¨æ³•ã¯ã€Cæ¨™æº–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªmemcpyé–¢æ•°ï¼memmoveé–¢æ•°ã«ãŠã‘ã‚‹å‹•ä½œä»•
mooz 2013/07/05
pointer aliasing

compiler

c

c99

optimization
ãƒªãƒ³ã‚¯
GitHub - google/sanitizers: AddressSanitizer, ThreadSanitizer, MemorySanitizer
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mooz 2013/04/28
debug

c

c++
ãƒªãƒ³ã‚¯
orangeduck/CPlus Â· GitHub
/* ** Example C+ Program */ #include "C+.h" int main(int argc, char** argv) { /* Stack objects are created using "$" */ var int_it em = $(Int, 5); var float_it em = $(Real, 2.4); var string_it em = $(String, "Hello"); /* Heap objects are created using "new" */ var it ems = new(List, 3, int_it em, float_it em, string_it em); /* Collections can be looped over */ foreach(it ems, it em) { /* Types are also obj
mooz 2012/11/02
ãƒ—ãƒªãƒ—ãƒã‚»ãƒƒã‚µã‚’æ´»ç”¨ã—ã€ã‚‚ã¯ã‚„åˆ¥è¨€èªžã«ã€‚é¢ç™½ã„ã€‚typedef void* var;

c
ãƒªãƒ³ã‚¯
GitHub - Golevka/emacs-clang-complete-async: An emacs plugin to complete C and C++ code using libclang
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mooz 2012/10/21
Completion server with libclang communicates with Emacs

emacs

completion

c

c++

clang
ãƒªãƒ³ã‚¯
peg/leg
peg/leg â€” recursive-descent parser generators for C peg and leg are tools for generating recursive-descent parsers: programs that perform pattern matching on text. They processes a Parsing Expression Grammar (PEG) [Ford 2004] to produce a program that recognises legal sentences of that grammar. peg processes PEGs written using the original syntax described by Ford; leg processes PEGs written using
mooz 2012/10/21
PEG for C

peg

parser

c
ãƒªãƒ³ã‚¯
32bitã¨64bitã®ã‚µã‚¤ã‚ºã®é•ã„(Cè¨€èªž): ã®ã¼ãƒ¡ãƒ¢(ä»®)
32bitã¨64bitç’°å¢ƒã§ã¯ã‚µã‚¤ã‚ºãŒé•ã†ã®ã§ãƒ¡ãƒ¢ãƒ¡ãƒ¢ã€‚ è‰²ã€…ãªåž‹ã«å¯¾ã—ã¦sizeof()é–¢æ•°ã‚’ä½¿ã£ã¦ã¿ãŸçµæžœã¯ä»¥ä¸‹ã®é€šã‚Šã€‚ OSé–“ã¾ãŸã¯32bit/64bité–“ã§ã‚µã‚¤ã‚ºãŒå¤‰ã‚ã‚‹åž‹ã‚’ä½¿ã†å ´åˆã¯ç§»æ¤ã«æ³¨æ„ãŒå¿…è¦ã€‚
mooz 2012/10/16
syzeof long ã¯ Windows 64bit ã ã¨ 4 byte ã«ãªã‚‹ã€‚

c

cpu

widows
ãƒªãƒ³ã‚¯
NaN boxingã¨sizeof(mrb_value) - mirichiã®æ—¥è¨˜
mrubyã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®åž‹ã¨ã—ã¦mrb_valueã¨ã„ã†ã‚‚ã®ã‚’ä½¿ã†ã€‚ã“ã‚Œã¯ä»¥ä¸‹ã®ã‚ˆã†ãªå®£è¨€ã«ãªã£ã¦ã„ã‚‹ã€‚ typedef struct mrb_value { union { mrb_float f; void *p; mrb_int i; mrb_sym sym; } value; enum mrb_vtype tt:8; } mrb_value;å…±ç”¨ä½“valueã«4ã¤ã®åž‹ãŒã‚ã‚Šã€intã ã£ãŸã‚Šãƒã‚¤ãƒ³ã‚¿ã ã£ãŸã‚Šã™ã‚‹ã€‚å‰ã«ã‚‚æ›¸ã„ãŸã‚ˆã†ãªæ°—ã¯ã™ã‚‹ãŒã€ã“ã®ä¸ã§mrb_floatãŒdoubleåž‹ã§å®šç¾©ã•ã‚Œã¦ãŠã‚Š(MRB_USE_FLOATæœªå®šç¾©ã®å ´åˆ)ã€ãã®8byteã¨ttã®1byteã€ã•ã‚‰ã«8byteã‚¢ãƒ©ã‚¤ãƒ³ã•ã‚Œã¦ã“ã®æ§‹é€ ä½“ã®ã‚µã‚¤ã‚ºã¯åˆè¨ˆ16byteã«ãªã‚‹ã€‚ ttã¨valueã‚’åˆ¥ã€…ã«æ“ä½œã™ã‚‹å ´åˆ(OP_MOVEãªã©)ãªã‚‰ã„ã„ãŒã€é–¢æ•°ã®å¼•æ•°ã‚„æˆ»ã‚Šå€¤ã«mrb_valueã‚’å€¤æ¸¡ã—ã§ä½¿ã†ã¨ã‚¹ã‚¿ãƒƒã‚¯çµŒ
mooz 2012/08/08
mruby ã« NaN boxing ã‚’å®Ÿè£…ï¼Ž15% ç¨‹é«˜é€Ÿã«ãªã£ã¦ã„ã‚‹ï¼Ž

ruby

c
ãƒªãƒ³ã‚¯
iv/iv/lv5/railgun/op.h at master Â· Constellation/iv
mooz 2012/06/20
ãƒ—ãƒªãƒ—ãƒã‚»ãƒƒã‚µã‚’é§†ä½¿ã—ã¦ enum ã®å®šç¾©ã¨ãã®æ–‡å—åˆ—ã‚’å®šç¾©

cpp

c

c++
ãƒªãƒ³ã‚¯
GitHub - rui314/8cc: A Small C Compiler
8cc C Compiler Note: 8cc is no longer an active project. The successor is chibicc. 8cc is a compiler for the C programming language. It's intended to support all C11 language features while keeping the code as small and simple as possible. The compiler is able to compile itself. You can see its code both as an implementation of the C language and as an example of what this compiler is able to comp
mooz 2012/05/12
C99 ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ï¼Žã‚»ãƒ«ãƒ•ãƒ›ã‚¹ãƒ†ã‚£ãƒ³ã‚°å¯èƒ½ï¼Žãƒžã‚·ãƒ³ã‚³ãƒ¼ãƒ‰ã®ç”Ÿæˆã¾ã§ï¼Ž

ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©

c

c99
ãƒªãƒ³ã‚¯
ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ãªã‚³ãƒ¼ãƒ‰ä¸ã§ã® rand() ã¯é‡ã„ï¼Ÿ | okuã®æ—¥è¨˜ | ã‚¹ãƒ©ãƒ‰
Linux + glibc ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã§æ–°ãŸãªè¬ŽãŒã€‚ linux-2.6.13 + x86_64-pc-linux-gnu-gcc-3.4.4 + glibc-2.3.5 (Linux Thread) ã®çµ„ã¿åˆã‚ã›ã§ã—ã‹è©¦ã—ã¦ã„ãªã„ã®ã§ã™ãŒã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ãªã‚³ãƒ¼ãƒ‰ã®ãƒ«ãƒ¼ãƒ—ä¸ã§ rand(3) ã‚’ä½¿ã†ã¨ã™ã•ã¾ã˜ããƒžã‚·ãƒ³ãŒé‡ãŸããªã‚Šã¾ã™ã€‚ æ•°åå€‹ã‚‚ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’ä½œã‚‹ã¨ã‚ãƒ¼ãƒœãƒ¼ãƒ‰ã«åå¿œã™ã‚‹ã®ã«ã™ã‚‰åæ•°ç§’ã‹ã‹ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ ä¸€æ–¹ã€ã©ã†ã„ã†ã‚ã‘ã ã‹ rand_r(3) ã ã¨å¤§ä¸ˆå¤«ã§ã™ã€‚ ä»®èª¬: ã²ã‚‡ã£ã¨ã—ã¦ã€rand(3) ã® seed ã‚’ libc å†…ã§å¼„ã‚‹éš›ã« mutex ã¨ã‹ semaphore ã¨ã‹ã§ãƒãƒƒã‚¯ã—ã¦ã„ã‚‹ã®ã§ã¯ã‚ã‚‹ã¾ã„ã‹ï¼Ÿ (ç–‘ä¼¼ä¹±æ•°ã®ç›´åˆ—æ€§ã‚’å®ˆã‚‹ãŸã‚ï¼Ÿ) è¨¼æ˜Ž: é¢å€’ãªã®ã§è©²å½“ç®‡æ‰€ã‚’ rand_r(3) ã«æ›¸ãæ›ãˆã¦ã»ã£ã‹ã‚€ã‚Šã€‚ (^^; # NPTL ã ã¨é•ã£ãŸã‚Šã™ã‚‹ã®ã§ã—ã‚‡
mooz 2012/02/16
glibc-2.3.5 ã® rand(3) å®Ÿè£…ï¼Žæ¥½è¦³çš„ã‚¢ãƒ—ãƒãƒ¼ãƒã§ãƒ‡ãƒ¼ã‚¿ç«¶åˆãŒç”Ÿã˜ãŸã‚‰ã‚„ã‚ŠãªãŠã—ï¼Ÿ

glibc

linux

c
ãƒªãƒ³ã‚¯
Man page of OFFSETOF
Section: Linux Programmer's Manual (3) Updated: 2020-11-01 Index JM Home Page roff page åå‰ offsetof - æ§‹é€ ä½“ã®ãƒ¡ãƒ³ãƒãƒ¼ã®ã‚ªãƒ•ã‚»ãƒƒãƒˆã‚’è¿”ã™ æ›¸å¼ #include <stddef.h> size_t offsetof(type, member); èª¬æ˜Ž offsetof() ãƒžã‚¯ãƒã¯ã€ãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰ member ã® æ§‹é€ ä½“ type ã®å…ˆé ã‹ã‚‰ã®ã‚ªãƒ•ã‚»ãƒƒãƒˆã‚’è¿”ã™ã€‚ ã“ã®ãƒžã‚¯ãƒãŒæœ‰ç”¨ãªã®ã¯ã€ æ§‹é€ ä½“ã‚’æ§‹æˆã™ã‚‹ãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰ã®ã‚µã‚¤ã‚ºã¯å®Ÿè£…ã«ã‚ˆã£ã¦å¤‰åŒ–ã™ã‚‹ã—ã€ ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã«ã‚ˆã‚Šãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰é–“ã«æŒ¿å…¥ã™ã‚‹ãƒ‘ãƒ‡ã‚£ãƒ³ã‚°ã®ãƒã‚¤ãƒˆæ•°ã‚‚ é•ã†å¯èƒ½æ€§ãŒã‚ã‚‹ã‹ã‚‰ã§ã‚ã‚‹ã€‚ ãã®çµæžœã€ã‚ã‚‹ã‚¨ãƒ¬ãƒ¡ãƒ³ãƒˆã®ã‚ªãƒ•ã‚»ãƒƒãƒˆã¯å¿…ãšã—ã‚‚ãã‚Œã‚ˆã‚Šå‰ã® ã‚¨ãƒ¬ãƒ¡ãƒ³ãƒˆã®ã‚µã‚¤ã‚ºã®åˆè¨ˆã¨ã¯ãªã‚‰ãªã„ã€‚ member ãŒãƒã‚¤ãƒˆå¢ƒç•Œã«ä½ç½®ã—ã¦ã„ãªã„å ´åˆ (ã™ãª
mooz 2012/01/14
æ§‹é€ ä½“å†…ã®ãƒ¡ãƒ³ãƒãƒ¼ã®ã‚ªãƒ•ã‚»ãƒƒãƒˆã‚’è¿”ã™

c
ãƒªãƒ³ã‚¯
C++ç”¨xUnitã§ã®ãƒ†ã‚¹ãƒˆã®æ›¸ãæ–¹ - 2009-11-07 - ã‚¯ã‚¯ãƒã‚°
æ³¨: é•·ã„ã§ã™ã€‚ ã‚¹ã‚¯ãƒªãƒ—ãƒˆè¨€èªžã§ã®xUnitå®Ÿè£…ã‚’ä½¿ã£ãŸã“ã¨ãŒã‚ã‚‹æ–¹ãªã‚‰ã€ãƒ†ã‚¹ãƒˆã‚’å®šç¾©ã™ã‚‹ã ã‘ã§ãƒ†ã‚¹ãƒˆãŒå®Ÿè¡Œã•ã‚Œã‚‹ã“ã¨ãŒå½“ãŸã‚Šå‰ã§ã¯ãªã„ã§ã—ã‚‡ã†ã‹ã€‚c2.comã®Wikiã«ã‚ˆã‚‹ã¨ã€ã“ã‚Œã¯Test Collectorã¨ã„ã†ãã†ã§ã™ã€‚å®šç¾©ã—ãŸãƒ†ã‚¹ãƒˆã‚’è‡ªå‹•çš„ã«é›†ã‚ã¦ãã‚‹æ©Ÿèƒ½ã®ã“ã¨ã§ã™ã€‚ ä¸€èˆ¬çš„ã«Test Collectorã®æ©Ÿèƒ½ã¯è¨€èªžãŒæä¾›ã™ã‚‹ãƒªãƒ•ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³æ©Ÿèƒ½ã‚„ãƒ¡ã‚¿ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°æ©Ÿèƒ½ã‚’ä½¿ã£ã¦å®Ÿç¾ã•ã‚Œã¾ã™ã€‚ ä¾‹ãˆã°ã€Rubyã®test-unit 2.xã§ã¯ã€ãƒªãƒ•ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã‚’ä½¿ã†æ–¹æ³•ã¨ãƒ¡ã‚¿ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’ä½¿ã†æ–¹æ³•ã®ä¸¡æ–¹ã‚’ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚ãƒªãƒ•ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã‚’ä½¿ã†æ–¹æ³•ã§ã¯ObjectSpace.each_object(Class)ã§ã™ã¹ã¦ã®ã‚¯ãƒ©ã‚¹ã‚’å–å¾—ã—ã€ãã®ä¸ã®Test::Unit::TestCaseã®ã‚µãƒ–ã‚¯ãƒ©ã‚¹ã‚’é›†ã‚ã¾ã™ã€‚ãƒ¡ã‚¿ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’ä½¿ã†æ–¹æ³•ã§ã¯Test::Unit::TestCase.
mooz 2011/12/28
ç´ æ™´ã‚‰ã—ã„è¨˜äº‹ï¼Žæ§˜ã€…ãªãƒ†ã‚¹ãƒˆãƒ„ãƒ¼ãƒ«ã«å¯¾ã™ã‚‹æ‰€æ„ŸãŒã¾ã¨ã‚ã‚‰ã‚Œã¦ã„ã‚‹ï¼Žcutterï¼Ž

testing

c

c++
ãƒªãƒ³ã‚¯
Wolfram Gloger's malloc homepage
German version On this page I will collect information, tools, and interesting links concerning all topics pertaining to dynamic memory allocation. In particular, this includes anything to do with the functions malloc, realloc, free, etc. in the C programming language as defined by the ISO standard. ptmalloc New ptmalloc3 release May 31st, 2006! Here you can download the third version of ptmalloc
mooz 2011/12/20
ptmalloc

malloc

c

concurrent
ãƒªãƒ³ã‚¯
Charming Python: Functional programming in Python, Part 3
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
mooz 2011/12/12
Linux Kernel ã§ä½¿ã‚ã‚Œã¦ã„ã‚‹ GCC æ‹¡å¼µã‚’ä½¿ã£ãŸãƒ†ã‚¯ãƒ‹ãƒƒã‚¯

gcc

c

linux_kernel
ãƒªãƒ³ã‚¯
Frama-C - Framework for Modular Analysis of C programs
Latest News 2024-12-11 MetAcsl v0.8 for Frama-C 30.0 Zinc 2024-12-09 Frama-Clang v0.0.17 for Frama-C 30.0~ Zinc 2024-12-05 Release of Frama-C 30.0 (Zinc) 2024-11-15 MetAcsl v0.8~beta for Frama-C 30.0~ Zinc 2024-11-15 frama-clang v0.0.17~beta for Frama-C 30.0~ Zinc 2024-11-07 Beta release of Frama-C 30.0~beta (Zinc) 2024-10-07 Internship Position at CEA List - LSL 2024-10-07 Internship Position at
mooz 2011/11/23
ãƒ—ãƒ©ã‚¬ãƒ–ãƒ«ãª C ç”¨ã®é™çš„è§£æžå™¨

c

code_analysis
ãƒªãƒ³ã‚¯
C++11 - Wikipedia
ã“ã®è¨˜äº‹ã¯æ›´æ–°ãŒå¿…è¦ã¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ ã“ã®è¨˜äº‹ã«ã¯å¤ã„æƒ…å ±ãŒæŽ²è¼‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ç·¨é›†ã®éš›ã«æ–°ã—ã„æƒ…å ±ã‚’è¨˜äº‹ã«åæ˜ ã•ã›ã¦ãã ã•ã„ã€‚åæ˜ å¾Œã€ã“ã®ã‚¿ã‚°ã¯é™¤åŽ»ã—ã¦ãã ã•ã„ã€‚ï¼ˆ2019å¹´1æœˆï¼‰ C++11ã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž C++ ã®ISOæ¨™æº– ISO/IEC 14882:2011 ã®ç•¥ç§°ã§ã‚ã‚‹ã€‚è¦æ ¼ã®ç–å®šä¸ã¯2009å¹´ä¸ã®æ¨™æº–åŒ–ã‚’ç›®æŒ‡ã—ã¦ã„ãŸãŸã‚ã€C++0x ã¨ã„ã†ä»®ç§°ã§å‘¼ã°ã‚Œã¦ã„ãŸã€‚ ISO/IEC 14882:2003 (C++03) ã«ä»£ã‚ã‚‹ã‚‚ã®ã¨ã—ã¦ã€2011å¹´8æœˆ12æ—¥ã«ISOã«ã‚ˆã£ã¦æ‰¿èªã•ã‚ŒãŸ[4]ã€‚å¾Œç¶™ã®C++14ãŒ2014å¹´8æœˆ18æ—¥ã«æ‰¿èªã•ã‚Œã¦ã„ã‚‹ã€‚ ã‚³ã‚¢è¨€èªžã¸ã®æ©Ÿèƒ½è¿½åŠ ã‚„æ¨™æº–C++ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®æ‹¡å¼µã‚’æ–½ã—ã€C++TR1ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®å¤§éƒ¨åˆ†ã‚’ï¼ˆæ•°å¦çš„ç‰¹æ®Šé–¢æ•°ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’é™¤ã„ã¦ï¼‰å–ã‚Šè¾¼ã‚“ã§ã„ã‚‹ã€‚ C++ ã¸ã®ä¿®æ£ã¯ã‚³ã‚¢è¨€èªžã¨æ¨™æº–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®åŒæ–¹ã«åŠã¶ã€‚ å§”å“¡ä¼šã¯ã€æ–°è¦æ ¼ã®å€‹åˆ¥ã®è¦ç´ ã®
mooz 2011/11/04
NULL ã¯ C ã ã¨ ((void*)0) ã‹ 0 ã®ã©ã¡ã‚‰ã§ã‚‚è‰¯ã„ãŒï¼ŒC++ ã§ã¯ 0 ã¨å®šã‚ã‚‰ã‚Œã¦ã„ã‚‹ï¼Žã“ã‚Œã¯ C++ ã«ãŠã„ã¦ void * ãŒä»–ã®ãƒã‚¤ãƒ³ã‚¿åž‹ã¸ã¨æš—é»™çš„ã«å¤‰æ›ã•ã‚Œãªã„ãŸã‚ï¼Ž

c++11

c
ãƒªãƒ³ã‚¯
What is your favorite C programming trick?
For example, I recently came across this in the linux kernel: /* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) So, in your code, if you have some structure which must be, say a multiple of 8 bytes in size, maybe because of some hardware constraints, you can do: BUILD_BUG_ON((sizeof(struct mystruct) % 8) != 0); and it won
mooz 2011/10/18
c

cpp
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Deep C
Programming is hard. Programming correct C and C++ is particularly hard. Indeed, both in C and certainly in C++, it is uncommon to see a screenful containing only well defined and conforming code.Why do professional programmers write code like this? Because most programmers do not have a deep understanding of the language they are using.While they sometimes know that certain things are undefined o
mooz 2011/10/10
c

c++
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Koichi Nakamura @9_ties ã€ŒCã‚„C++ã®é€Ÿåº¦é¢ã«ãŠã‘ã‚‹å„ªä½æ€§ã¯ä»Šå¾Œãªããªã‚‹ã€ã¨ã„ã†ã‹ã‚€ã—ã‚ä»–ã®è¨€èªžã«è¿½ã„è¶Šã•ã‚Œã‚‹ã¨æ€ã£ã¦ã„ã‚‹ã‘ã©ã€ã¡ã‚ƒã‚“ã¨ãã®æ ¹æ‹ ã‚’æ•´ç†ã—ã¦ã¿ã‚ˆã†ã€‚ 2011-05-20 00:25:27 Koichi Nakamura @9_ties Cã‚„C++ã¯ãƒ¡ãƒ¢ãƒªæœ€é©åŒ–ã¨è‡ªå‹•ä¸¦åˆ—åŒ–ãŒä»–ã®è¨€èªžã«æ¯”ã¹ã¦é›£ã—ã„ã‹ã‚‰ã€ãƒ˜ãƒ†ãƒã‚¸ãƒ‹ã‚¢ã‚¹ãƒžãƒ«ãƒã‚³ã‚¢å‘ã‘ã®æœ€é©åŒ–ãŒã†ã¾ãã§ããªã„ã¨ã„ã†ã®ã¯è‰¯ã„ã¨æ€ã†ã€‚ã§ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ãŒã©ã®ç¨‹åº¦ä¸Šæ‰‹ãè‡ªå‹•åŒ–ã—ã¦ãã‚Œã‚‹ã‹ï¼ŸãŒå•é¡Œã€‚ã“ã“ã®åŠ¹çŽ‡ãŒè‰¯ã„ãªã‚‰åˆ¥ã«è¨€èªžã¯ä½•ã§ã‚‚è‰¯ã„ã€‚ 2011-05-20 01:05:17
mooz 2011/06/23
c

c++

programming_language
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Cè¨€èªžç³»/ã€Œãƒ‡ãƒ¼ãƒ¢ãƒ³å›ã®ã‚½ãƒ¼ã‚¹æŽ¢æ¤œã€èªæ›¸ãƒ¡ãƒ¢/12, script(1) - Glamenv-Septzen.net
id: 563Â æ‰€æœ‰è€…: msakamoto-sf ä½œæˆæ—¥: 2010-01-28 13:44:32 ã‚«ãƒ†ã‚´ãƒª: BSDÂ Cè¨€èªž [Â PrevÂ ] [Â NextÂ ] [Â Cè¨€èªžç³»Â ] ãŠé¡Œï¼š"script(1)"ã‚³ãƒžãƒ³ãƒ‰ã®ä»•çµ„ã¿ã‚’è¿½è·¡ã›ã‚ˆ â€»æœ€åˆã«ç¨®ã‚’æ˜Žã‹ã™ã¨ã€ä»®æƒ³ç«¯æœ«ã®èª¬æ˜Žã¯ "APUE: Advanced Programming in the UNIX Environment" ã«ä¾ã£ã¦ã„ã¾ã™ã€‚ã¾ãŸAPUEã«ã¯scriptã‚³ãƒžãƒ³ãƒ‰ã®æ¦‚è¦ã‚‚å›³å…¥ã‚Šã§è¼‰ã£ã¦ã„ãŸã‚Šã—ã¾ã™ã€‚ å®Ÿè¡Œãƒ•ã‚¡ã‚¤ãƒ«ã¨ã‚½ãƒ¼ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã®ä½ç½® å®Ÿè¡Œãƒ•ã‚¡ã‚¤ãƒ«ã¨ã‚½ãƒ¼ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã®ä½ç½®ï¼š $ which script /usr/bin/script $ cd /usr/src/usr.bin/script/ $ ls CVS/ Makefile script.1 script.c Makefileã‚‚ã‚·ãƒ³ãƒ—ãƒ«ã€‚libutil.soã‚’ãƒªãƒ³
mooz 2011/06/23
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c

linux
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