Pointers and dynamic memory. a. Given the declarations what does statement 1 do? float x; float* ptr = &x; *ptr = 24.9; || statement 1 b. Write a statement that dynamically allocates memory for a float and returns the address into the pointer variable declared in part a. c. Assign the value 12 to the memory dynamically allocated in part b and pointed to by the pointer variable in part a.

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter8: I/o Streams And Data Files
Section: Chapter Questions
Problem 8PP: (Data processing) A bank’s customer records are to be stored in a file and read into a set of arrays...
icon
Related questions
Question
5. Pointers and dynamic memory.
a. Given the declarations what does statement 1 do?
float x;
float* ptr = &x;
%3D
*ptr = 24.9; Il statement 1
%3D
b. Write a statement that dynamically allocates memory for a float and returns the
address into the pointer variable declared in part a.
c. Assign the value 12 to the memory dynamically allocated in part b and pointed
to by the pointer variable in part a.
Transcribed Image Text:5. Pointers and dynamic memory. a. Given the declarations what does statement 1 do? float x; float* ptr = &x; %3D *ptr = 24.9; Il statement 1 %3D b. Write a statement that dynamically allocates memory for a float and returns the address into the pointer variable declared in part a. c. Assign the value 12 to the memory dynamically allocated in part b and pointed to by the pointer variable in part a.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Concept of pointer parameter
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
C++ for Engineers and Scientists
C++ for Engineers and Scientists
Computer Science
ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr
C++ Programming: From Problem Analysis to Program…
C++ Programming: From Problem Analysis to Program…
Computer Science
ISBN:
9781337102087
Author:
D. S. Malik
Publisher:
Cengage Learning
Systems Architecture
Systems Architecture
Computer Science
ISBN:
9781305080195
Author:
Stephen D. Burd
Publisher:
Cengage Learning