Program plan: str1,str2,str3,str4 variablesare used for inputs char strcpyptr(char dest, const char src) function stores string array reference in pointer variables and copy srcto deststring using pointer arithmetic and return the copied string. char strcpyarr(char dest[], const char src[]) function stores string array reference in two array variables and copy srcto deststring using array index and return the copied string. char strcatarr(char src[], char dest[])) function stores string array reference in pointer variables and perform concatenation using srcanddeststrings using pointer arithmetic and return the resultant string. char strcatptr(char src, const char dest) function stores string array reference in two array variables and perform concatenation using srcand dest using array index and return the resultant string. Program description: The main purpose of the program is to demonstrate the working of built-in string function strcat() and strcpy() by writing the two versions of each function. One version of each uses the pointer arithmetic to copy and concat the strings. Second version of each uses array index to copy and concat the strings.

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Chapter 8, Problem 8.28E

Program Plan Intro

Program plan:

str1,str2,str3,str4 variablesare used for inputs

char strcpyptr(char dest, const char src) function stores string array reference in pointer variables and copy srcto deststring using pointer arithmetic and return the copied string.

char strcpyarr(char dest[], const char src[]) function stores string array reference in two array variables and copy srcto deststring using array index and return the copied string.

char strcatarr(char src[], char dest[])) function stores string array reference in pointer variables and perform concatenation using srcanddeststrings using pointer arithmetic and return the resultant string.

char strcatptr(char src, const char dest) function stores string array reference in two array variables and perform concatenation using srcand dest using array index and return the resultant string.

Program description:

The main purpose of the program is to demonstrate the working of built-in string function strcat() and strcpy() by writing the two versions of each function. One version of each uses the pointer arithmetic to copy and concat the strings. Second version of each uses array index to copy and concat the strings.

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