[FLASH-USERS] Big Problem??

[Nathan Hearn]

Hi Seyit,

    An uninitialized variable is one that is declared (specified as
integer, real, etc.), but not assigned a value.  Thus, an
uninitialized variable usually has whatever value was in its memory
location before it was declared.  (It could be a random number,
"infinity," or just garbage.)  If this variable gets used before a
value is assigned to it, strange behavior may result, which would be
very compiler- and architecture-specific).  If you are using
uninitialized pointer or allocatable variables, the effects can be
quite drastic and hard to identify.

    Generally speaking, it is a good idea to assign a value to every
variable soon after it is declared, even if it is only a temporary
value that is not actually used.  (As I recall, there is a way to
assign a null value to pointers, which is also a very useful
practice.)


- Nathan


On 8/4/08, Seyit Hocuk <seyit at astro.rug.nl> wrote:
> Hi Paul, hi Nathan,
>
> First of all; using --with-default-api-version=v16 when configuring
> hdf5-1.8.1 works fine. Thanks for that Paul.
>
> Nathan, if you mean by uninitialized that the types are not defined
> (like in config file REAL or INTEGER or whatever), then no because I
> define them all. But if you mean I have included modules or parameters
> which I don't use, that's correct and I am no expert in programming so
> it might indeed be good to check this.
>
> Greetz,
> Seyit