e studled were mainly variables. ne initialized with a special value c we studied, we saw that a pointe

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Please choose which of these are true about pointers. Check all that apply. Wrong answers will subtract points.
O A pointer contains an address in RAM.
The pointers we studied were mainly variables.
O A pointer can be initialized with a special value called nullptr.
In the material we studied, we saw that a pointer can contain an entire array.
This definition:
double * dp;
means that the dp variable can contain a double.
Assume this is a function heading for the code you will write:
void somthing10 (int * ptr)
a. In one line of code, how could you add 10 to what ptr points to?
b. Assume ptr points to the first element in an array of ints, each of which takes
up 4 bytes of memory in RAM. In one line of code, how could you store 10
into the third element in the array? If this is not possible, enter "np"
Transcribed Image Text:Please choose which of these are true about pointers. Check all that apply. Wrong answers will subtract points. O A pointer contains an address in RAM. The pointers we studied were mainly variables. O A pointer can be initialized with a special value called nullptr. In the material we studied, we saw that a pointer can contain an entire array. This definition: double * dp; means that the dp variable can contain a double. Assume this is a function heading for the code you will write: void somthing10 (int * ptr) a. In one line of code, how could you add 10 to what ptr points to? b. Assume ptr points to the first element in an array of ints, each of which takes up 4 bytes of memory in RAM. In one line of code, how could you store 10 into the third element in the array? If this is not possible, enter "np"
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