Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Given the C code below and memory mapping, complete Table 1 after program
execution. (Assumption: the variable birth_year is stored directly right after
current_year in the RAM.)
RAM (32-bit)
#include<stdio.h>
...
int main(void)
{
int current_year = 2021;
int birth_year = 1944;
Ox10000000
current_year
X
birth_year
int *ptr1 = &current_year;
int "ptr2 = &birth_year;
Ox20000000
ptr1
*ptr1 = current_year - *ptr2;
return 0;
Ox20000000
ptr2
Table 1: After Program Execution
Variable
Value
a) X
b) ptrl
c) &ptrl
d) *ptrl
e) *ptr2
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Transcribed Image Text:Given the C code below and memory mapping, complete Table 1 after program execution. (Assumption: the variable birth_year is stored directly right after current_year in the RAM.) RAM (32-bit) #include<stdio.h> ... int main(void) { int current_year = 2021; int birth_year = 1944; Ox10000000 current_year X birth_year int *ptr1 = &current_year; int "ptr2 = &birth_year; Ox20000000 ptr1 *ptr1 = current_year - *ptr2; return 0; Ox20000000 ptr2 Table 1: After Program Execution Variable Value a) X b) ptrl c) &ptrl d) *ptrl e) *ptr2
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