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char_ptrl The items they poim

char_ptrl The items they poim

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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'p' 'r' 'o' 'g' 'r' 'a' 'm' 'm' 'e' 'n' 'g' \0' ptr Assume I have a character array as shown above, and that ptr is a character pointer currently pointing to the 'o' in the array. The problem is, I spelled "programming" with an 'e' where an 'i' should be. Using only ptr and valid pointer operations, please write one line of code that will correct my spelling so that there is an 'i' instead of the 'e' in the array. Assume char_ptr1 and char_ptr2 are pointers to chars. What does this code mean if the following expression is true? (*char_ptrl == *char_ptr2) 1. The items they point to contain the same values 2. The pointers themselves contain the same values 3. The pointers are pointing to the same memory address Answers: Both 2 and 3 Only 1 Only 3 Only 2 Both 1 and 3
Transcribed Image Text:'p' 'r' 'o' 'g' 'r' 'a' 'm' 'm' 'e' 'n' 'g' \0' ptr Assume I have a character array as shown above, and that ptr is a character pointer currently pointing to the 'o' in the array. The problem is, I spelled "programming" with an 'e' where an 'i' should be. Using only ptr and valid pointer operations, please write one line of code that will correct my spelling so that there is an 'i' instead of the 'e' in the array. Assume char_ptr1 and char_ptr2 are pointers to chars. What does this code mean if the following expression is true? (*char_ptrl == *char_ptr2) 1. The items they point to contain the same values 2. The pointers themselves contain the same values 3. The pointers are pointing to the same memory address Answers: Both 2 and 3 Only 1 Only 3 Only 2 Both 1 and 3
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Step 1

*(ptr+6)="i"; // assigns the value i to memory location where 'e' was stored 

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