What are the methods of operating on pointers in the C …

In the C language, pointer operations include the following methods:

1. Addition operation of pointers: You can obtain the address of the next location pointed to by adding a pointer and an integer. For example, ptr + 1 represents the address of the next adjacent location.
2. Subtracting a pointer: subtracting an integer from a pointer can be used to obtain the address of the location before the pointer points to. For example, ptr – 1 represents the address of the previous adjacent location.
3. Pointer comparison: You can use relational operators (such as ==, !=, >, <, >=, <=) to compare the size relationship between two pointers. The comparison is based on the memory address that the pointer points to.
4. The increment operation of a pointer: You can use the increment operator (++) to move the pointer to the address of the next position. For example, ++ptr moves the pointer one position forward.
5. Pointer decrement operation: You can use the decrement operator (–) to move the pointer to the previous address location. For example, –ptr means the pointer moves one position backwards.

It is important to note that when performing pointer operations, ensure that the memory being pointed to is valid to avoid undefined behavior. Additionally, the result of pointer operations will still be of pointer type.