C++ Questions

The free subroutine frees a block of memory previously allocated by the malloc subroutine. Undefined results occur if the Pointer parameter is not a valid pointer. If the Pointer parameter is a null value, no action will occur. The realloc subroutine changes the size of the block of memory pointed to by the Pointer parameter to the number of bytes specified by the Size parameter and returns a new pointer to the block. The pointer specified by the Pointer parameter must have been created with the malloc, calloc, or realloc subroutines and not been deallocated with the free or realloc subroutines. Undefined results occur if the Pointer parameter is not a valid pointer.

Stack is a collection of objects that works in LIFO (Last in First out) mechanism while Queue is FIFO (First in First out). This means that the object that is inserted first is removed last in a stack while an object that is inserted first is removed first in a queue.

It is a group of functions and implemented under algorithm header file.

To resolve all the side-effects in the program, the sequence point should not be overlapped.

C++ allows us to parameterize directly three kinds of entities through templates: types, constants, and templates.

The container manages the storage space for its elements and provides member functions to access them, either directly or through iterators which reference objects with similar properties to pointers.

Using insertion we can perform insertion sort, using selection we can perform selection sort, using exchange we can perform the bubble sort.But by using deletion we cannot perform any sort.

It is a method in the search opertion in standard library algorithms.