typing effect on text

This is a discussion on typing effect on text within the C++ Programming forums, part of the General Programming Boards category; it does not run on my turbo c. i got too many errors....

  1. #16
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    it does not run on my turbo c. i got too many errors.

  2. #17
    The superhaterodyne twomers's Avatar
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    And the errors say???

  3. #18
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    Undefined symbol 'text'
    Undefined symbol 'msg'
    Undefined symbol 'msg1'
    Extra parameter in call to TypeText()

  4. #19
    The superhaterodyne twomers's Avatar
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    Copy and paste this to your thing

    Code:
    #include<iostream>
    #include<string>
    
    #include<windows.h> // for Sleep
    
    using namespace std; 
    
    
    /*
    #define stiring string
    // Sorry
    
    void TypeText ( stiring text ) // typo, but I'm refusing to admit it! string text
    */
    
    
    void TypeText( string text )
    {
       for ( int i=0; i<(int)text.size(); i++ )
       {
          cout<< text[i];
          Sleep( 50 );
       }
    }
    
    int main()
    {
    	string msg = "This is only a test.";
    	string msg1 = "I hope that this will work.";
    
    	TypeText ( msg );
    	TypeText ( msg1 );
    
    
    	return 0;
    
    }
    Last edited by twomers; 09-02-2006 at 09:21 AM.

  5. #20
    Frequently Quite Prolix dwks's Avatar
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    Code:
    void TypeText ( stiring text )
    Undefined reference to `stiring'

    Code:
    for ( int i=0; i<(int)text.size(); i++ )
    Rather than cast to an int, you could make i the same type.
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
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  6. #21
    The superhaterodyne twomers's Avatar
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    Quote Originally Posted by dwks
    Code:
    void TypeText ( stiring text )
    Undefined reference to `stiring'

    Code:
    for ( int i=0; i<(int)text.size(); i++ )
    Rather than cast to an int, you could make i the same type.
    ah, i forgot the #define stiring string line. Whoops, my bad. Calling it an int, and casting is less writing, dwks

  7. #22
    Frequently Quite Prolix dwks's Avatar
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    Yes, but it isn't much harder to use
    Code:
    for(string::size_type i; i < text.size(); i ++
    now is it?
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
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  8. #23
    The superhaterodyne twomers's Avatar
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    I agree. I use it sometimes, but I can never remember where the _ goes in it, or even if there is one there, so if I'm doing it from memory, I (cast).

    that size_type always confused me though. Why doesn't .size() just return an int?

  9. #24
    ZuK
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    Quote Originally Posted by twomers
    that size_type always confused me though. Why doesn't .size() just return an int?
    Guess it's an unsigned type because negative sizes don't make sense.
    Kurt

  10. #25
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    how come your program not work on my turbo c++? :-/

  11. #26
    Frequently Quite Prolix dwks's Avatar
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    Because a size_type is probably an unsigned long, but it could be bigger. I don't know about C++, but in C a size_t is the largest unsigned type supported by the compiler, even if that type is non-standard like _uint64. If you have a really long string you might need something like that.

    It's like fseek() and ftell() in C. They use int positions. Well, guess what? The C99 functions fgetpos() and fsetpos() do exactly the same thing, but using an fpos_t variable, which can hold much larger values. (Yes, there really are files larger than 2GB.)
    dwk

    Seek and ye shall find. quaere et invenies.

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  12. #27
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    Iterators!
    Code:
    for (string::iterator i = str.begin(); i < str.end(); i++)
    {
        cout << *i << flush;
        usleep(500000);
    }
    System: Debian Sid and FreeBSD 7.0. Both with GCC 4.3.

    Useful resources:
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  13. #28
    Frequently Quite Prolix dwks's Avatar
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    Did you change stiring to string?
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
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  14. #29
    The superhaterodyne twomers's Avatar
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    Quote Originally Posted by ZuK
    Guess it's an unsigned type because negative sizes don't make sense.
    Kurt
    Good point. But it's got its own type, right string::size_type ... I'll test out using all sorts of unsigned things tonight I think, just to see if I can get it not to warning me.

  15. #30
    The superhaterodyne twomers's Avatar
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    Quote Originally Posted by dwks
    Did you change stiring to string?
    Yes! Just added the macros there

    painkiller05 , does it work now?
    Last edited by twomers; 09-02-2006 at 09:20 AM.

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