Free Store Manager

The free store manager is the thing that allocates memory to the free store in [[c]]

Something very important to know about some C++ keywords that regard the free store manager is that they don't work like they seem to:

c++

int* p = new int{4}; // new keyword returns the address of the dynamically allocated integer object.
delete p; // This doesn't get rid of the p pointer, it deallocates the dynamically allocated integer object.
p = nullptr; // Makes it so that p no longer points to the previous address SUPER IMPORTANT

int* arr = new int[kSize]; // Allocates an array of integers on free store
delete[] arr; // Deletes arrays

int** arr = new int*[kColumns]; // Allocates kColumns of integer arrays on free store;

// Now you have to create each row of the array like:
arr[0] = new int[kRows];

// For deletion make sure you delete each row and then each column of the array with a for loop

With the Free Store Manger a good rule of thumb is to have equal amounts of news and deletes or else your program is INVALID.

See Also