char doubleIt (char **arr, int *maxsize); The doubleIt function will increase the heap size by doubling the original space. The functions takes 2 arguments: 1. A double pointer of type char called arr. This is a 2D dynamic array that contains words (strings) from the respective category (noun, verb, adjective, preposition). This is the original heap. 2. A pointer of type int called maxsize. This pointer holds the address of an integer that keeps track of the maximum amount of strings the 2D dynamic array can store. When this function is invoked, the current size of the dynamic array is at capacity so the values should match. This value will need to be multiplied by 2. The function allocates a new heap that is twice the size of the original heap and copy the values from the original heap into the new heap. One important note about this is that you have to properly copy the values over in order to avoid segmentation fault. Think about how this can be avoided. That is part of the challenge of this assignment. Avoid using realloc, calloc, or any sort of other memory function except for malloc and free. If any other built in memory function is used then the ones stated will result in points being deducted!
char doubleIt (char **arr, int *maxsize); The doubleIt function will increase the heap size by doubling the original space. The functions takes 2 arguments: 1. A double pointer of type char called arr. This is a 2D dynamic array that contains words (strings) from the respective category (noun, verb, adjective, preposition). This is the original heap. 2. A pointer of type int called maxsize. This pointer holds the address of an integer that keeps track of the maximum amount of strings the 2D dynamic array can store. When this function is invoked, the current size of the dynamic array is at capacity so the values should match. This value will need to be multiplied by 2. The function allocates a new heap that is twice the size of the original heap and copy the values from the original heap into the new heap. One important note about this is that you have to properly copy the values over in order to avoid segmentation fault. Think about how this can be avoided. That is part of the challenge of this assignment. Avoid using realloc, calloc, or any sort of other memory function except for malloc and free. If any other built in memory function is used then the ones stated will result in points being deducted!
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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Question
I start with the code but I have a hard time just figure out the whole malloc process
Transcribed Image Text:char
**
doubleIt(char **arr, int *maxsize);
char **arr;
int *maxsize;
Transcribed Image Text:char ** doubleIt (char **arr, int *maxsize);
The doubleIt function will increase the heap size by doubling the original space. The functions takes 2
arguments:
1. A double pointer of type char called arr. This is a 2D dynamic array that contains words
(strings) from the respective category (noun, verb, adjective, preposition). This is the original
heap.
A pointer of type int called maxsize. This pointer holds the address of an integer that keeps
track of the maximum amount of strings the 2D dynamic array can store. When this function
is invoked, the current size of the dynamic array is at capacity so the values should match.
This value will need to be multiplied by 2.
The function allocates a new heap that is twice the size of the original heap and copy the values from the
original heap into the new heap. One important note about this is that you have to properly copy the
values over in order to avoid segmentation fault. Think about how this can be avoided. That is part of the
challenge of this assignment. Avoid using realloc, calloc, or any sort of other memory function
except for malloc and free. If any other built in memory function is used then the ones stated will
result in points being deducted!
Expert Solution
Step 1
In C, we utilize the free function to release memory (). The only argument to the free() function is a reference towards the memory you want to free. All memory was also allocated previously with malloc(), free(equivalent. )'s ().
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