This is just out of curiosity...

There are a couple ways to make sure a function gets called only once.
Let's say I have a function that gets called several times, called
LoopedFunc() and I have another function called Init() which I only
want to run once... then I can do

LoopedFunc()
{
static bool initialized = false;
if(!initialized) {
Init();
initialized = true;
}
}

or...I can make my Init() function return a boolean and then go

LoopedFunc()
{
static bool this_variable_is_never_used = Init();
}

The second way only requires one line...but still requires a pretty
useless variable, and forces you to put a return on your Init
function.

Shouldn't there be a way to do something like

LoopedFunc()
{
static Init();
}

or something??

On Dec 27, 10:21 pm, Mark <mnbaya...@gmail.com> wrote:
> This is just out of curiosity...
>
> There are a couple ways to make sure a function gets called only once.
> Let's say I have a function that gets called several times, called
> LoopedFunc() and I have another function called Init() which I only
> want to run once... then I can do
>
> LoopedFunc()
> {
> static bool initialized = false;
> if(!initialized) {
> Init();
> initialized = true;
> }
>
> }
>
> or...I can make my Init() function return a boolean and then go
>
> LoopedFunc()
> {
> static bool this_variable_is_never_used = Init();
>
> }
>
> The second way only requires one line...but still requires a pretty
> useless variable, and forces you to put a return on your Init
> function.
>
> Shouldn't there be a way to do something like
>
> LoopedFunc()
> {
> static Init();
>
> }
>
> or something??


A crude way of doing it could be...

class Init
{
public:
Init();
};

LoopedFunc()
{
static Init init;
}

Thanks and regards
Sonison James

On Dec 27, 11:57 pm, sonison.ja...@gmail.com wrote:
> On Dec 27, 10:21 pm, Mark <mnbaya...@gmail.com> wrote:
>
>
>
> > This is just out of curiosity...
>
> > There are a couple ways to make sure a function gets called only once.
> > Let's say I have a function that gets called several times, called
> > LoopedFunc() and I have another function called Init() which I only
> > want to run once... then I can do
>
> > LoopedFunc()
> > {
> > static bool initialized = false;
> > if(!initialized) {
> > Init();
> > initialized = true;
> > }
>
> > }
>
> > or...I can make my Init() function return a boolean and then go
>
> > LoopedFunc()
> > {
> > static bool this_variable_is_never_used = Init();
>
> > }
>
> > The second way only requires one line...but still requires a pretty
> > useless variable, and forces you to put a return on your Init
> > function.
>
> > Shouldn't there be a way to do something like
>
> > LoopedFunc()
> > {
> > static Init();
>
> > }
>
> > or something??
>
> A crude way of doing it could be...
>
> class Init
> {
> public:
> Init();
>
> };
>
> LoopedFunc()
> {
> static Init init;
>
> }
>
> Thanks and regards
> Sonison James

Ahh..that's even worse in my books :p Oh well. I was just wondering.