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Tomoki Ota ʲGoݴޠʳrange

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Goʹ͸ɺdo΍while͸ͳ͘ for͔͠ଘࡏ͠ͳ͍ɻ

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rangeͱ͸ʁ ஋ͷίϐʔ rangeͷධՁ rangeʹ͓͚ΔϙΠϯλ ΞδΣϯμ 3

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rangeͱ͸ʁ

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rangeͱ͸ʁ 5 ༷ʑͳσʔλߏ଄ʹରͯ͠ɺ൓෮ॲཧΛߦ ͏ͷʹศརͳํ๏ ΠϯσοΫε΍ऴྃঢ়ଶΛѻ͏ඞཁ͕ͳ͍

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rangeͱ͸ʁ 6 range͕͍͔ʹͯ͠஋ΛׂΓ౰ͯΔ͔Λ஌͍ͬͯͳ͍ͱ όάΛى͜͢ݪҼͱͳΓ͔Ͷͳ͍ʂ

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จࣈྻ ഑ྻ ഑ྻ΁ͷϙΠϯλ εϥΠε Ϛοϓ ड৴νϟωϧ rangeͰ࢖͑Δσʔλߏ଄

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rangeͷ࢖͍ํ

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rangeͷ࢖͍ํ

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rangeͷ࢖͍ํ

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for _ := range s {} ͸ίϯύΠϧΤϥʔ = Λ࢖͓͏ʂ rangeͷ࢖͍ํ

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஋ͷίϐʔ

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஋ͷίϐʔ 13 [{1100} {1200} {1300}]ʹ͸ͳΒͳ͍ʂ

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GOͰ͸୅ೖ͞ΕΔ΋ͷ͸ શͯίϐʔͰ͋Δ

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஋ͷίϐʔ 15 ߏ଄ମΛฦؔ͢਺ͷ݁ՌΛ୅ೖ͢Δͱɺͦͷߏ଄ମͷίϐʔ͕ߦΘΕΔ ϙΠϯλΛฦؔ͢਺ͷ݁ՌΛ୅ೖ͢ΔͱɺϝϞϦΞυϨεͷίϐʔ͕ߦΘΕΔ (64bitΞʔΩςΫνϟͰ͸ΞυϨε͸64bit௕ͱͳΔɻ)

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஋ͷίϐʔ 16 εϥΠεͷΠϯσοΫεΛ༻͍ͯཁૉʹΞΫηε͢Δ ैདྷͷfor range ϙΠϯλΛ࢖༻͢Δ

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εϥΠεͷΠϯσοΫεΛ༻͍ͯཁૉʹΞΫηε͢Δ ैདྷͷfor 17

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εϥΠεͷΠϯσοΫεΛ༻͍ͯཁૉʹΞΫηε͢Δ range 18

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ϙΠϯλΛ࢖༻͢Δ 19

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ϙΠϯλΛ࢖༻͢Δ 20 εϥΠεܕΛมߋ͢Δඞཁ͕͋Δ͕ɺৗʹՄೳͱ͸ݶΒͳ͍ ੑೳΛॏࢹ͢Δ৔߹ɺϙΠϯλͷεϥΠεΛ൓෮ॲཧ͢Δ͜ͱ͸༧ଌՄೳੑʹ͔͚ΔͨΊ CPUʹͱͬͯޮ཰͕ѱ͘ͳΔՄೳੑ͕͋Δ

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rangeͷධՁ

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rangeͷධՁ 22 range͸͕ࣜඞਢ

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23 for i, v := range exp rangeͷධՁ

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24 rangeͷධՁ

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25 rangeͷධՁ

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26 rangeͷධՁ rangeΛ࢖ͬͨ࣌ʹ༩͑ΒΕ͕ͨࣜ ։࢝લʹ1౓͚ͩධՁ͞ΕΔɻ s͸range͕࢖͏Ұ࣌ม਺ʹίϐʔ͞ΕΔɻ

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27 rangeͷධՁ(νϟωϧ) range͸chΛධՁͯ͠ɺҰ࣌ม਺ʹίϐʔ͠ɺ ͦͷνϟωϧͷཁૉʹରͯ͠ɺ൓෮ॲཧΛߦ͏ɻ ch = ch2ʹؔΘΒͣɺrange͸ch2Ͱ͸ͳ͘ ch1ʹରͯ͠ɺ൓෮ॲཧΛଓ͚Δɻ ch = ch2͸ɺchʹ2ͭ໨ͷνϟωϧΛ୅ೖ͍ͯ͠ΔͷͰɺ ͜ͷίʔυͷޙͰclose(ch)Λݺͼग़͢ͱɺ1ͭ໨Ͱ͸ͳ͘ɺ 2ͭ໨ͷνϟωϧ͕Ϋϩʔζ͞ΕΔɻ

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28 rangeͷධՁ(഑ྻ)

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29 rangeͷධՁ(഑ྻ)

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30 ࠷ޙͷཁૉͷ࣮ࡍͷ஋ͷදࣔํ๏ ΠϯσοΫεΛ࢖͏ํ๏ ഑ྻ΁ͷϙΠϯλΛ࢖͏ํ๏

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31 ΠϯσοΫεΛ࢖༻͢Δ

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32 ഑ྻ΁ͷϙΠϯλΛ࢖༻͢Δ

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rangeʹ͓͚ΔϙΠϯλ

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rangeʹ͓͚ΔϙΠϯλ 34 ΩϟογϡʹཁૉΛૠೖ͢ΔϩδοΫΛ࣮૷͍ͯ͠Δ

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35 rangeʹ͓͚ΔϙΠϯλ

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36 rangeʹ͓͚ΔϙΠϯλ

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37 rangeʹ͓͚ΔϙΠϯλ

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38 ղܾํ๏1 ϩʔΧϧม਺Λ࢖༻͢Δํ๏

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39 ղܾํ๏2 εϥΠεͷΠϯσοΫεΛ࢖ͬͯɺ֤ཁૉΛࢀর͢ΔϙΠϯλΛ֨ೲ͢Δํ๏