do I incur a penality on compile time if I explicitly declare default behavior ?

[someone]

I mean, coding as following:

```d
int intWhatever = 0; /// default being zero anyway

foreach (classComputer objComputer, objComputers) { ... } /// 
explicitly declaring the type instead of letting the compiler to 
figure it out

struc Whatever {

    public doSomething() { ... } /// explicitly declaring scopes 
matching the default ones

}

string[] strWhatever;
if (strWhatever.length > cast(size_t) 1) { ... } /// explicitly 
casting for proper types although not required to at all
```

... and the likes; or, besides unnecessary typing, are there any 
cons that I should be aware of while using DMD ?