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String to array???

FormerMember
FormerMember

Hi,

  I want to know if there is any function that converts input string to an array???

Thanks,

C10

Parents

  • Hi Carlton,

    That depends what you mean by dynamic memory allocation of array. You can create an array on the fly using (say) makeVector() (or indeed the declare() function, although the syntax of that makes it less obvious to most readers). So there's nothing to stop you doing:

    newArray=makeVector(N)

    or

    declare(newArray[N])

    Both do the same thing - they assign an array, of size N, into the variable newArray. You can call this repeatedly and it will dynamically allocate a new array. Once an array has been created though, it is of fixed size, as Lawrence said. There's nothing to stop you creating a new bigger one, and assigning it to the same variable (maybe after copying contents across), but that wouldn't be very efficient if you were doing it frequently. In such circumstances, you'd be better off using a list or a hash table (created using makeTable()). Both lists and tables are completely flexible in their size - they can grow or shrink as you add or remove members/elements.

    Regards,

    Andrew.

Reply

  • Hi Carlton,

    That depends what you mean by dynamic memory allocation of array. You can create an array on the fly using (say) makeVector() (or indeed the declare() function, although the syntax of that makes it less obvious to most readers). So there's nothing to stop you doing:

    newArray=makeVector(N)

    or

    declare(newArray[N])

    Both do the same thing - they assign an array, of size N, into the variable newArray. You can call this repeatedly and it will dynamically allocate a new array. Once an array has been created though, it is of fixed size, as Lawrence said. There's nothing to stop you creating a new bigger one, and assigning it to the same variable (maybe after copying contents across), but that wouldn't be very efficient if you were doing it frequently. In such circumstances, you'd be better off using a list or a hash table (created using makeTable()). Both lists and tables are completely flexible in their size - they can grow or shrink as you add or remove members/elements.

    Regards,

    Andrew.

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