Write a function that gets two strings, str1 and str2, and searches for str2 inside str1, and returns the index of the first appearance of str2 in str1. If str is not in str, the function returns -1. For example: - str_find("Hello world", "llo") should return 2. - str_find("ABCDEFD", "DE") should return 3. - str_find("ABCDEFD", "BCF") should return -1. // finds the first appearance of str in str1 // returns the index of the beginning of the first appearance // if str2 is not in str1, returns -1 int str_find(const char* str1, const char* str2); Test for the Function: void test_q1() { intans1 = str_find("Hello world", "llo"); if (ans1 == 2) printf("Q1-1 ok\n"); else printf("Q1-1 ERROR\n"); intans2 = str_find("ABCDEFG", "BCF"); if (ans2 == -1) printf("Q1-2 ok\n"); else printf("Q1-2 ERROR\n"); }

Write a function that gets two strings, str1 and str2, and searches for str2 inside str1, and returns the index of the first appearance of str2 in str1. If str is not in str, the function returns -1. For example: - str_find("Hello world", "llo") should return 2. - str_find("ABCDEFD", "DE") should return 3. - str_find("ABCDEFD", "BCF") should return -1. // finds the first appearance of str in str1 // returns the index of the beginning of the first appearance // if str2 is not in str1, returns -1 int str_find(const char* str1, const char* str2); Test for the Function: void test_q1() { intans1 = str_find("Hello world", "llo"); if (ans1 == 2) printf("Q1-1 ok\n"); else printf("Q1-1 ERROR\n"); intans2 = str_find("ABCDEFG", "BCF"); if (ans2 == -1) printf("Q1-2 ok\n"); else printf("Q1-2 ERROR\n"); }

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter6: User-defined Functions

Section: Chapter Questions

Problem 22PE

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