Thread: converting a program from unix to windows

  1. 03-24-2006 #1
    waltr
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    converting a program from unix to windows

    hello,

    i'm wondering if anybody out there could point me to a tutorial or FAQ on porting a unix C program to windows?

    specifically, i'm getting an error when i compile with the following functions defined:

    Code:
    srand( (unsigned)time( (time_t *) 0 ));
    to seed srand. the error is:

    'time': identifier not found, even with argument-dependent lookup

    also,

    Code:
    mkdir(theFolder, 00777);
    with the same error code. it may be my headers are incorrect, so i'll list them too:

    #include <iostream>
    #include <tchar.h>
    #include <stdio.h>
    #include <string.h>
    #include <stdlib.h>
    #include <ctype.h>
    #include <sys/types.h>
    #include <sys/stat.h>

    any help or advice would be appreciated. i'm using visual studio to compile.
  2. 03-24-2006 #2
    dwks
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    time() is in <time.h>. mkdir() is often in <unistd.h>.
    dwk

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  3. 03-24-2006 #3
    Devil Panther
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    here you go:
    Code:
    <stdlib.h>
<time.h>

srand( (unsigned)time( (time_t *) 0 ));
    As for mkdir, since dos died, I'm not too sure, sorry...
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  4. 03-24-2006 #4
    dwks
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    As for mkdir, since dos died, I'm not too sure, sorry...
    mkdir() is a POSIX function.
    dwk

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  5. 03-24-2006 #5
    itsme86
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    Why are you including iostream? That's for C++.
    If you understand what you're doing, you're not learning anything.
  6. 03-24-2006 #6
    Ancient Dragon
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    mkdir() is one of the few POSIX standard functions that most Windows compiler also support.

    Waltr: there are many *nix functions that have no MS-Windows equivalents, and others have different function names with similar functionality. For example, *nix opendir() and readir(), MS-Windows equivalents are ReadFirstFile() and ReadNextFile().
  7. 03-24-2006 #7
    waltr
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    hi all,

    thanks for the replies. <itsme> i'm not sure why i had <iostream> in there. it's not necessary so i've removed it.

    <time.h> has solved my
    Code:
    srand( (unsigned)time( (time_t *) 0 ));
    problem, but i still can't seem to get the mkdir() function to work.

    any other suggestions are welcome, if i solve it myself i'll post the answer. thanks again!
  8. 03-24-2006 #8
    itsme86
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    It looks like you should be able to use mkdir() if you #include <direct.h>
    If you understand what you're doing, you're not learning anything.
  9. 03-24-2006 #9
    Xipher
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    Quote Originally Posted by dwks
    mkdir() is a POSIX function.
    And he is porting the program to Windows...
    If any part of my post is incorrect, please correct me.

    This post is not guarantied to be correct, and is not to be taken as a matter of fact, but of opinion or a guess, unless otherwise noted.
  10. 03-25-2006 #10
    dwks
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    mkdir() is a POSIX function.
    And he is porting the program to Windows...
    :
    mkdir() is one of the few POSIX standard functions that most Windows compiler also support.
    Besides, that wasn't my point. My point was that is isn't a DOS function:
    As for mkdir, since dos died, I'm not too sure, sorry...
    Which is also your point.
    dwk

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  11. 05-23-2006 #11
    WaltP
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  12. 05-23-2006 #12
    hk_mp5kpdw
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    Quote Originally Posted by itsme86
    It looks like you should be able to use mkdir() if you #include <direct.h>
    The Visual Studio compilers have a _mkdir function in that header... perhaps that can be used.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
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  13. 05-24-2006 #13
    Salem
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