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atjari

  • 2 years ago

Can someone explain me why we put return 0?

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  1. atjari
    • 2 years ago
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    And also where we put that?

  2. agdgdgdgwngo
    • 2 years ago
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    programs return 0 when they exit to let the OS know that it has terminated successfully and nothing has gone wrong. something like "return 0" should exist somewhere within the main function of your C/C++ program

  3. atjari
    • 2 years ago
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    we also put system 'pause' right. then y is that

  4. agdgdgdgwngo
    • 2 years ago
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    system("pause"); is not really needed; it's used because when you run it on windows, the "cmd" window opens/closes really fast.

  5. atjari
    • 2 years ago
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    in some codings where we use sub functions we put return name, return regno etc. y is that?

  6. agdgdgdgwngo
    • 2 years ago
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    we do that because it's how we program; we compose our programs from these subroutines/procedures that return a value or change state.

  7. atjari
    • 2 years ago
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  8. atjari
    • 2 years ago
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    Pls see the attachment.

  9. agdgdgdgwngo
    • 2 years ago
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    you do get similar output in both programs, with slight differences in the way the functions work (second one has string exist in one frame, etc.).

  10. atjari
    • 2 years ago
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    If u dnt mind cn u tel me in which case u use 1st one and which case u use the second.

  11. agdgdgdgwngo
    • 2 years ago
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    With the first one, you can reuse the display() function if you ever want to get string input from the user. With the second one, you use it if you want to reuse the ability to have the user enter a string, and then echo it as "Name is\t" + hisname

  12. atjari
    • 2 years ago
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    sorry I dnt get t.

  13. agdgdgdgwngo
    • 2 years ago
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    What I can do if I used version 2: http://ideone.com/AKT0r contrast with what i can do with version 1 http://ideone.com/AXfKR

  14. atjari
    • 2 years ago
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    Thanx a lot for ur great help.

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