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Go言語の紹介(かなり浅く浅く)(仮)
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HirokiKajiura
August 22, 2014
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Go言語の紹介(かなり浅く浅く)(仮)
HirokiKajiura
August 22, 2014
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Transcript
Goݴޠͷհʢ͔ͳΓઙ͘ઙ͘ʣ(Ծ) @a0symptote
ࣗݾհ ໊લ : ֿӜɹେى ྸ : 20 ॴଐ : Ѵߴઐ(དྷ͔ΒେֶՊ)
ڵຯ : ɹ ɹֶͰ͏ਤ(άϥϑ)ͷ࡞
ຊͷ༰
Goݴޠͬͯʁ Google ͕։ൃͯ͠Δݴޠ γϯϓϧͳߏจͰ͕͍ͷ͕ಛ ฒྻॲཧʹڧ͘ɼ؆୯ʹ࣮ग़དྷΔ webΞϓϦέʔγϣϯΛ࡞ΔͨΊͷϥΠϒϥϦ͕Ұഋ ࣈ۟ɾߏจղੳ༻ͷϥΠϒϥϦҰഋ Ϛείοτ͕ՄѪ͍ʂʂʂʂʂʂʂʂʂʂʂʂʂ ࢀߟจݙ :
http:/ /golang.jp
Կʹ͑Δʁ WebΞϓϦέʔγϣϯͷ࡞ ΠϯλϓϦλɾίϯύΠϥͷ։ൃ ܭࢉ etc…
Կʹ͑Δʁ WebΞϓϦέʔγϣϯͷ࡞ ΠϯλϓϦλɾίϯύΠϥͷ։ൃ ܭࢉ etc… ͋ Ε ɼ ଞ ͷ
ݴ ޠ Ͱ ྑ ͘ ͳ ͍……ʁ
͔֬ʹ
GoݴޠΛ͏ཧ༝ͬͯʁ Goݴޠ͕͖Ͱ͖Ͱͨ·Βͳ͍ ָʹฒྻॲཧΛར༻͍ͨ͠
GoݴޠΛ͏ཧ༝ͬͯʁ Goݴޠ͕͖Ͱ͖Ͱͨ·Βͳ͍ ָʹฒྻॲཧΛར༻͍ͨ͠ ී௨ͬͪ͜ʁ
ָʹฒྻॲཧ͢ΔͨΊ͚ͩʹ GoݴޠΛ͏ͷͪΐͬͱ……
ղܾࡦ ଞͷݴޠͰॻ͍ͨػೳΛ GoݴޠͰऔΓࠐΜͰ͓͏
औΓࠐΉͨΊͷํ๏
औΓࠐΉͨΊͷํ๏ cgoͱ͍͏πʔϧ͕Goݴޠʹ༻ҙ͞Ε͍ͯΔ
औΓࠐΉͨΊͷํ๏ cgoͱ͍͏πʔϧ͕Goݴޠʹ༻ҙ͞Ε͍ͯΔ ͓ΘΓ
͕͢͞ʹຯؾͳ͍ͷͰ…… ͲΜͳݴޠ͕͑·͔͢ʁ Question C/C++ Ada Fortran Java Objective-C/C++ Answer
͕͢͞ʹຯؾͳ͍ͷͰ…… ͲΜͳݴޠ͕͑·͔͢ʁ Question C/C++ Ada Fortran Java Objective-C/C++ Answer gccͰίϯύΠϧग़དྷΔݴޠͳΒԿͰ
࣮ࡍͷιʔεݟͯΈΑ͏ package main ! /* ! #include<math.h> int larger(int a,
int b){return (a > b) ? a : b;} ! */ ! ! import "C" import "fmt" ! func main() { fmt.Println(C.larger(1, 2)); fmt.Println(C.cos(30.0 * 3.14 / 180.0)); } ͜ͷίϝϯτͷதʹ Cݴޠͷιʔε ͜ͷΑ͏ʹҧײͳ ͘ݺͼग़ͤΔɽ ϥΠϒϥϦݺΔ
CݴޠҎ֎Ͱʁ package main /* #cgo CFLAGS: -x objective-c #cgo LDFLAGS:
-framework Foundation ! #import <Foundation/Foundation.h> #import <objc/Object.h> void fizzBuzz(int n) { for(int i = 1; i <= n; ++i) if(i % 15 == 0)NSLog(@"fizzbuzz\n"); else if(i % 5 == 0)NSLog(@"buzz\n"); else if(i % 3 == 0)NSLog(@"fizz\n"); elseNSLog(@"%d\n", i); } */ import "C" ! func main() { C.fizzBuzz(20) } gccʹೖ͍ͬͯΕɼCFLAGS͔Β ࢦఆͯ͠Εͳ͘։͚Δ ϩʔυ͍ͨ͠ϥΠϒϥϦಉ͡ ͘LDFLAGSͰࢦఆग़དྷΔ
ࠓճͷ·ͱΊ Goݴޠɼ͍ͬ͢͝Մೳੑʹ͋;ΕͯΔ ଞͷݴޠͷྑ͍ॴΛͭ·Έ৯͍ͯ͠ར༻Ͱ͖Δ Goݴޠࣗମ؆୯ʹฒྻॲཧ͕ग़དྷͨΓͱɼதʑݟॴ͕͋Δ ͜Ε͔Βൃల͍ͯ͘͠ͷͰɼظͯͬͯͯ͠Լ͍͞
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠