System Calls && Variables

This is a discussion on System Calls && Variables within the C++ Programming forums, part of the General Programming Boards category; is it possible to have a system call that has a variable in it? eg. if the system call had ...

  1. #1
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    System Calls && Variables

    is it possible to have a system call that has a variable in it?
    eg. if the system call had parameters and you needed input from a user for those parameters?

    ie: "g++ main.cpp -o main.exe"

    If it is possible can you tell me how to do it?
    thanks

  2. #2
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    system() will NOT interpret anything other than a string,

    input the variables and compile them into a string using

    int sprintf( char *buffer, const char *format [, argument] ... );
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  3. #3
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    what header file is system(); declared in?

  4. #4
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    its probably compiler dependant, try stdlibh.or process.h
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  5. #5
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    ok thanks that worked
    (stdlib.h)

  6. #6
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    Steven? you didn't know that man?

    everyone knows that you need stdlib.h to use the system() function

  7. #7
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    lol shaddap :-P

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