Why 1 + 1 = 2 in Swift?

try! Swift Tokyo 2024

Transcript

1. 8IZ
   
   
   
   
   
   JO
   4XJGU
2. 1SPPG
   
   
   
   
   
   JO
   NBUIFNBUJDT w "SPVOE
   
   NBUIFNBUJDJBOT
   USJFE
   UP
   QSPWF
   
   
   
   
   
   w 5IFZ
   GPSNBMJ[FE
   
   BOE
    
   QSPWJOH
   
   
   
   
   
   UISPVHI
   BYJPNT 1SJODJQJB
   .BUIFNBUJDB 8IBU
   JT
   
   
   8IBU
   JT
   
   SFCVJME
   GPVOEBUJPO
3. 5BSHFU
   TPVSDF
   DPEF 8IBU
   JT
   UIJT
   l z
4. 4XJGU
   TPVSDF
   DPEF IUUQTHJUIVCDPNBQQMFTXJGU
5. 4PVSDF
   DPEF
   PG
   
   PQFSBUPS *OUFHFSTTXJGU 8IFSF
   JT
   JNQMFNFOUBUJPO
6. 4XJGU
   TPVSDF
   DPEF
   JT
   HFOFSBUFE
   CZ
   (:# (:#
   (FOFSBUF
   :PVS
   #PJMFSQMBUF 4XJGU (FOFSBUF (JU)VC 4XJGU "DUVBM
   4XJGU
   TPVSDF
   DPEF
7. (:#
   FYBNQMF (:#
   1ZUIPO 4XJGU
8. "GUFS
   HFOFSBUF
9. 4PVSDF
   DPEF
   PG
   
   PQFSBUPS )PX
   JT
   UIF
   
   PQFSBUPS
   JNQMFNFOUFE
10. 4PVSDF
    DPEF
    PG
    
    PQFSBUPS
11. 5SZ
    UP
    VTF
    UIJT
    GVODUJPO $ swift -parse-stdlib plus.swift 2
12. l z FRVBMT l#VJMUJOTBEE@XJUI@PWFSqPX@*OUz JO
    4XJGU
13. 8IZ
    
    
    
    
    
    
    
    
    
    
    JO
    #VJMUJOTBEE@XJUI@PWFSGMPX@*OU /FYU
    RVFTUJPO
14. "CPVU
    #VJMUJOTBEE@XJUI@PWFSGMPX@*OU w #VJMUJO
    
    QSPWJEFT
    DPNQJMFS
    CVJMUJO
    GVODUJPOT
    w TBEE@XJUI@PWFSqPX
    
    TJHOFE
    BEEJUJPO
    XJUI
    PWFSqPX
    EFUFDUJPO
    w *OU
    
    CJU
    JOUFHFS
    OVNCFST )PX
    DBMDVMBUFE
    JO
    4XJGU
    DPNQJMFS
15. 4XJGU
    DPNQJMBUJPO
    QSPDFTT 4XJGU --7.
    *3
    *OUFSNFEJBUF
    3FQSFTFOUBUJPO .BDIJOF
    $PEF GSPOUFOE
    DPNQJMFS CBDLFOE
    DPNQJMFS 㲈
    CJUDPEF
16. )PX
    4XJGU
    DPEF
    DIBOHFT 4XJGU --7.
    *3 "TTFNCMZ OP
    PQUJNJ[F
    PQUJPO
17. --7.
    *3 4XJGU --7.
    *3 "TTFNCMZ
18. "TTFNCMZ 4XJGU --7.
    *3 "TTFNCMZ
19. $PNQJMFUJNF
    FWBMVBUJPO w ABA
    BOE
    ACA
    BSF
    DPOTUBOUT
    w 5IF
    FYQSFTTJPO
    AB
    
    CA
    JT
    SFQMBDFE
    XJUI
    JUT
    DPNQVUFE
    WBMVF
    w 5IJT
    FOIBODFT
    QFSGPSNBODF
    BOE
    NJOJNJ[FT
    DBMDVMBUJPOT 0QUJNJ[F
20. .PEJGZ
    UBSHFU
    TPVSDF
    DPEF VTF
    **'&
21. "TTFNCMZ 4XJGU --7.
    *3 "TTFNCMZ
22. $16
    FWBMVBUFT
    ABEEA
    PG
    BTTFNCMZ BEE
    
    Y
    Y
    Y Y
     SFHJTUFST Y
     ộ Y
     "TTFNCMZ "-6 $16
23. 4VSFMZ
    
    
    
    
    
    JO
    4XJGU 41&$*"-
    5)"/,4 (:#
    #VJMUJO
    NPEVMF
    $PNQJMFUJNF
    FWBMVBUJPO
    "-6
    JO
    $16