Question

If I have this float array declaration:

float tables[10];

How can I change the length of the ‘tables’ array to 20?

Another question related to the array in C++:

I can not declare an array something like this:

int length=10;

float newTables[length]; // error C2133: 'newTables' : unknown size

Thanks in advance.

Answer 1

If you are fine defining the size of array during build-time, you can use #define

#DEFINE ARRAY_SIZE 20
float tables[ARRAY_SIZE];

Or if you need to specify the size of array during runtime, use new

float* newtables;
newtables = new float[20];