2D array pointer?

This is a discussion on 2D array pointer? within the C Programming forums, part of the General Programming Boards category; hey...i need to create an array of locations on the hard drive. at least i think thats how i want ...

  1. #1
    Shibby willc0de4food's Avatar
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    2D array pointer?

    hey...i need to create an array of locations on the hard drive. at least i think thats how i want to do it as i've tried learning linked lists before and they just dont click. idky, but i dont get it. lol but basically i have a program that lets you search non-executable files for a specified string / strings. after the user selects the root dir, i create a dir listing of all of the files of a certain type in that dir and then open the files and search for the string. what i need to do is have a way to keep track of the dir list so i thought, hey a 2D array pointer. when i need to store another location, i can just increase the size of the array and store the new dir where the file is stored so that when the program is closed i can remove the files. so really, my question is how do i make this? i know how to do a 1D array pointer, but not 2D. thanks :]
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    The Richness... Richie T's Avatar
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    well its very similar - allocate an array of pointers to your double
    pointer, use a loop to step through that, and allocate arrays
    for each pointer.
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    Frequently Quite Prolix dwks's Avatar
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    You'll need realloc(), and a variable to hold the size of the array.

    Search the board for examples.
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    Shibby willc0de4food's Avatar
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    Quote Originally Posted by Richie T
    well its very similar - allocate an array of pointers to your double
    pointer, use a loop to step through that, and allocate arrays
    for each pointer.
    for some reason this just isn't clicking.
    an array of pointers? like *ptr[10]; ?
    and by the double pointer, you mean **pointer , yes?
    would you mind a quick example?

    thanks guys
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  5. #5
    The Richness... Richie T's Avatar
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    Here's what i was talking about - read filker0's post, explains
    both allocation and deallocation, and also an alternative approach


    need help with dynamic array syntax
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