iable is stored in memory, it is associated with an address. To obtain the address of a variable, the & operator can be used. Write a C program addressOfScalar.c by inserting the code below in the main function. Questions: 1) Run the C program, attach a screenshot of the output in the answer sheet. 2) Attach the source co

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
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Assembly language

Part 1: When a variable is stored in memory, it is associated with an address. To obtain the address of a variable, the & operator can be used.  Write a C program addressOfScalar.c by inserting the code below in the main function. Questions:

 

 

1) Run the C program, attach a screenshot of the output in the answer sheet.

2) Attach the source code in the answer sheet

3) Then explain why the address after intvar is incremented by 4 bytes instead of 1 byte.

// intialize a char variable, print its address and the next address
char charvar = '\0';
printf("address of charvar = %p\n", (void *) (&charvar));
printf("address of charvar - 1 = %p\n", (void *)(&charvar - 1));
printf("address of charvar + 1 = %p\n", (void *)(&charvar + 1));
4
7
// intialize an int variable, print its address and the next address
8
int intvar = 1;
printf("address of intvar =
printf("address of intvar - 1 = %p\n", (void *) (&intvar - 1));
printf("address of intvar + 1 = %p\n", (void *)(&intvar + 1));
9
%p\n", (void *)(&intvar));
10
11
12
123
Transcribed Image Text:// intialize a char variable, print its address and the next address char charvar = '\0'; printf("address of charvar = %p\n", (void *) (&charvar)); printf("address of charvar - 1 = %p\n", (void *)(&charvar - 1)); printf("address of charvar + 1 = %p\n", (void *)(&charvar + 1)); 4 7 // intialize an int variable, print its address and the next address 8 int intvar = 1; printf("address of intvar = printf("address of intvar - 1 = %p\n", (void *) (&intvar - 1)); printf("address of intvar + 1 = %p\n", (void *)(&intvar + 1)); 9 %p\n", (void *)(&intvar)); 10 11 12 123
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