Limitation of array Size

[Aakansha]

Is there any lmitation to dynamically allocate the size of an array or what types of factors can be involved to specify the size

[weaknessforcats]

C++ Has only one dimensional arrays. The number of elements is always the first index. All other indexes describe the elements and these must be known at compile time.

int (*array)[4] = new int[var1][4];    //OK
int (*array)[var2] = new int[var1][var2];    //error
 

As far as array size goes, the operating system will be used to obtain as much free memory as necessary. On some mainframes, there may be process limits established by a system administrator to prevent a process from hogging the machine.