Chapter 10: Problem 29

Look at the following array definition. char str [10]; Assume that name is also a char array, and it holds a C-string. Write code that copies the contents of name to str if the C-string in name is not too big to fit in str.

Short Answer

Expert verified

**Question**: Write a C code that checks if the C-string in the array 'name' fits into the array 'str'. If it fits, copy the contents of 'name' to 'str'. **Answer**: You can use the following code to achieve this: ```c #include #include int main() { char str[10] = ""; char name[] = "John Doe"; // Example C-string for 'name' if (strlen(name) < sizeof(str)) { strcpy(str, name); // 'name' has been successfully copied to 'str' } else { // 'name' is too big for 'str' } printf("str: %s\n", str); return 0; } ```

Step by step solution

Include Libraries

Firstly, include the necessary libraries. ```c #include #include ```

Declare Variables

Declare both arrays and initialize 'str' as an empty C-string. ```c char str[10] = ""; char name[] = "John Doe"; // Example C-string for 'name' ```

Check if 'name' fits into 'str'

Check the length of the C-string in 'name' and whether it is less than the size of 'str'. ```c if (strlen(name) < sizeof(str)) { // 'name' fits into 'str' } else { // 'name' is too big for 'str' } ```

Copy the C-string 'name' to 'str'

In the conditional block after checking the size, copy the C-string from 'name' to 'str' using the `strcpy()` function. ```c if (strlen(name) < sizeof(str)) { strcpy(str, name); // 'name' has been successfully copied to 'str' } else { // 'name' is too big for 'str' } ```

Test the Program

Finally, test the program by displaying the content of 'str' after the operation. ```c printf("str: %s\n", str); ``` Here's the complete code: ```c #include #include int main() { char str[10] = ""; char name[] = "John Doe"; // Example C-string for 'name' if (strlen(name) < sizeof(str)) { strcpy(str, name); // 'name' has been successfully copied to 'str' } else { // 'name' is too big for 'str' } printf("str: %s\n", str); return 0; } ```

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Look at the following array definition. char str [10]; Assume that name is also a char array, and it holds a C-string. Write code that copies the contents of name to str if the C-string in name is not too big to fit in str.

Short Answer

Step by step solution

Include Libraries

Declare Variables

Check if 'name' fits into 'str'

Copy the C-string 'name' to 'str'

Test the Program

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