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When variables are declared, are they located in memory contiguously? Write a program with the declaration: char a, b, c, *p, *q, *r; And print out the locations (addresses) that are assigned to all these variables by your computer. Are the locations in order? If the locations are in order, are they increasing or decreasing? Is the address of each pointer variable divisible by 4? If so, this probably means that each pointer value gets stored in machine word. Double check the results using sizeof() for char and for char". (Hint: if you want to see addresses printed as decimal numbers rather than hexadecimals, it is usually safe to cast an address as unsigned long and use the %lu format).

When variables are declared, are they located in memory contiguously? Write a program with the declaration: char a, b, c, *p, *q, *r; And print out the locations (addresses) that are assigned to all these variables by your computer. Are the locations in order? If the locations are in order, are they increasing or decreasing? Is the address of each pointer variable divisible by 4? If so, this probably means that each pointer value gets stored in machine word. Double check the results using sizeof() for char and for char". (Hint: if you want to see addresses printed as decimal numbers rather than hexadecimals, it is usually safe to cast an address as unsigned long and use the %lu format).

Database System Concepts
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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Using C language

Exercise 1: When variables are declared, are they located in memory contiguously? Write a program with the declaration: char a, b, c, *p, *q, *r; And print out the locations (addresses) that are assigned to all these variables by your computer. Are the locations in order? If the locations are in order, are they increasing or decreasing? Is the address of each pointer variable divisible by 4? If so, this probably means that each pointer value gets stored in machine word. Double check the results using sizeof() for char and for char*. (Hint: if you want to see addresses printed as decimal numbers rather than hexadecimals, it is usually safe to cast an address as unsigned long and use the %lu format).
Transcribed Image Text:Exercise 1: When variables are declared, are they located in memory contiguously? Write a program with the declaration: char a, b, c, *p, *q, *r; And print out the locations (addresses) that are assigned to all these variables by your computer. Are the locations in order? If the locations are in order, are they increasing or decreasing? Is the address of each pointer variable divisible by 4? If so, this probably means that each pointer value gets stored in machine word. Double check the results using sizeof() for char and for char*. (Hint: if you want to see addresses printed as decimal numbers rather than hexadecimals, it is usually safe to cast an address as unsigned long and use the %lu format).
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