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C++ MIX #11 これどう読むの...?
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Nobuyuki Nishiyama
June 15, 2024
Programming
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190
C++ MIX #11 これどう読むの...?
C++ MIX #11 で発表したスライドです!
https://cppmix.connpass.com/event/319167/
Nobuyuki Nishiyama
June 15, 2024
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Transcript
$ .*9 ͜ΕͲ͏ಡΉͷʜʁ ΅ͬͪήʔϜσϕϩού ࢁ৴ߦ
͜ͱͷൃ
w"464ϒϥϯυωʔϜͷ༝དྷ w ܳज़ֶʹ͓͚ΔΠϯεϐϨʔγϣϯͷͱͳ͍ͬͯΔΪϦ γϟਆͷۭඈͿനഅlϖΨαε‧1FHBTVTzɻ͜ͷ࠷ޙͷ࢛จࣈ ͕"464ͷ༝དྷͰ͢ɻʮͯ͢ͷʹߴ͍࣭ͱಠੑΛਧ͖ ࠐΉ͜ͱʹΑΓɺػʹΉϖΨαε͕͢Δڧ͞ɺੑɺ ७ਮ͞Λ۩ମతʹ࣮ݱ͢Δʯͱ͍͏ҙຯ͕ࠐΊΒΕ͍ͯ·͢ɻ· ͨɺ݄ΑΓ"464ʮΤΠεʔεʯͱൃԻ͕౷Ұ͞ Ε·ͨ͠ɻ w
IUUQTXXXBTVTDPNKQ"CPVU@"464BCPVU@BTVT@IJTUPSZ@OBNF ͜Μͳͷ͋ͬͨ
͜Μͳͷʂ υΠπޠ ӳޠ WFDUPS ϕΫτϧ ϕΫλʔ Q) ϖʔϋʔ ϐʔΤΠν #.8
ϕʔΤϜϰΣʔ ϏʔΤϜμϒϦϡʔ
wීஈͳΜͱͳ͘ݺশ͍ͯ͠Δݴ༿Λॳֶऀͦ ͷ··͍͍͑ͯͷ͔͠Βʜ🧐 ՝ൃੜʂ
Ͱຊฤ࢝·Γ·͢
w ϓϩάϥϜΛॻ͖࢝ΊΔʹ·ͣ(BNFTMOΛ։͘ w (BNFTMOϑΝΠϧ(BNFWDYQSPKΛؚΜͰ͍·͢ w Ϗϧυ͕ޭ͢Δͱ(BNFFYF͕ग़ྗ͞Ε·͢ ̍
w ϓϩάϥϜΛॻ͖࢝ΊΔʹ·ͣ(BNFTMOΛ։͘ w (BNFTMOϑΝΠϧ(BNFWDYQSPKΛؚΜͰ͍·͢ w Ϗϧυ͕ޭ͢Δͱ(BNFFYF͕ग़ྗ͞Ε·͢ ̍
w$ ͷίϯύΠϧʹ(/6ͷ($$$MBOHΛ ͍·͢ɻ·ͨόʔδϣϯཧʹHJUΛ͍·͢ ͷͰ֤ࣗͷ1$ʹΠϯετʔϧ͓͍ͯͯͩ͘͠͞ ͍ɻ-JOVYͳΒBQUJOTUBMMͰΠϯετʔϧ͠·͢ ̎
w$ ͷίϯύΠϧʹ(/6ͷ($$$MBOHΛ ͍·͢ɻ·ͨόʔδϣϯཧʹHJUΛ͍·͢ ͷͰ֤ࣗͷ1$ʹΠϯετʔϧ͓͍ͯͯͩ͘͠͞ ͍ɻ-JOVYͳΒBQUJOTUBMMͰΠϯετʔϧ͠·͢ ̎
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̏ #include <malloc.h> int main(int argc, char *argv[]) { if
(argc > 0 && !p) { int a = argc < 10 ? -1 * 2 : 1 & 2; } void *p = malloc(100); }
̐ struct Hoge { int x, y; }; int main()
{ Hoge v; v.x = 0; v.y = 0; }
̐ struct Hoge { int x, y; }; int main()
{ Hoge v; v.x = 0; v.y = 0; }
̐ struct Hoge { int x, y; }; int main()
{ Hoge v; v.x = 0; v.y = 0; }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̑ #include <iostream> constexpr int square(int x) { return x
* x; } int main() { int i = 0 | 2; int& h = (i / 2) << 2; if (i > 0 || h > 0) { std::cout << "Hoge\n"; } }
̒ #include <string> #include <iostream> int main() { auto s
= std::string{"Hoge"}; auto c = s[1]; printf("%s", s.c_str()); std::cout << s.substr(1, 2); }
̒ #include <string> #include <iostream> int main() { auto s
= std::string{"Hoge"}; auto c = s[1]; printf("%s", s.c_str()); std::cout << s.substr(1, 2); }
̒ #include <string> #include <iostream> int main() { auto s
= std::string{"Hoge"}; auto c = s[1]; printf("%s", s.c_str()); std::cout << s.substr(1, 2); }
̒ #include <string> #include <iostream> int main() { auto s
= std::string{"Hoge"}; auto c = s[1]; printf("%s", s.c_str()); std::cout << s.substr(1, 2); }
̒ #include <string> #include <iostream> int main() { auto s
= std::string{"Hoge"}; auto c = s[1]; printf("%s", s.c_str()); std::cout << s.substr(1, 2); }
wIUUQTRJJUBDPNIEBZJUFNT GCECFE ಉ͡ΈΛ࣋ͭਓ
wจࣈใΛԻಡͰ͑Δͷ͍͠ʂ wΒจࣈใΛൃԻͰ͖ͣͱೝ͍ࣝͯ͠ Δʜͷʜʁ 㵺wТw㵺 ŇPஇ Ҏ্Ͱ͢ʂʂ