I have an array inside a class which is:
private:
static const int MAX_EQUIPS=100;
equip a_t[MAX_EQUIPS];
int a_n;
Then in the main they tell me what MAX_EQUIPS size should be, how can I put it so it changes? It starts at X but then it increases or decreases when the new valor is entered.
It seems you are referring to variable length arrays which are not permitted in C++. many possible alternatives exist, for instance you can use a vector
A c++ solution would be:
class MyClass
{
public:
MyClass( size_t n ) :
a_t( n )
{
}
private:
std::vector< int > a_t;
};
I would suggest using std::vector for this, as it will wrap most of this itself.
private:
std::vector<int> a_t;
Then when you're given the size: a_t.resize(MAX_EQUIPS);
Your a_n will be a_t.size().
However, if you Really want to do it yourself, you'll need to do some allocation (which you should tie to ctor/dtor semantics.
const, is it? Use avector.