2 Array questions

This is a discussion on 2 Array questions within the C Programming forums, part of the General Programming Boards category; 1 Is there anyway to automatically get slices of arrays? For example, from the array {1 2 3 4 5 ...

  1. #1
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    Question 2 Array questions

    1 Is there anyway to automatically get slices of arrays?

    For example, from the array {1 2 3 4 5 6} is there any quick way of getting say elements 2-4 in a new array {2 3 4}?


    2 Dynamic array size. I need an array which size is determined by argv first thing in the function. Do I need to start defining structures and pointers or is there a quicker way?

    Thanks a lot,

    Tor

  2. #2
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    If you're up for a read, this is a good intro into pointers and arrays.

    >>any quick way of getting say elements 2-4 in a new array
    memcpy() if the elements are contiguous. Or simple direct assignment for each element you want to copy.

    >>I need an array which size is determined by argv first thing in the function
    malloc() an array then.

    This will get you memory for 10 ints
    #include <stdlib.h>
    int *myarray;
    myarray = malloc(10 * sizeof(*myarray));
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  3. #3
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    Talking Thanks

    That was quick and really useful.

    Best,

    Tor

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