I am an absolute beginner. I tried to create a switch statement. But I failed to run it successfully. Can someone please help me

Question

Please suggest me if I am doing anything wrong.
#include <stdio.h>
int main() {
char day[100], a[100];
gets(day);
a = tolower(day);
switch (day) {
case "monday":
case "tuesday":
case "thurseday":
printf("One, Two, or Three.\n");
break;
case "wednessday":
case "friday":
case "saturday":
printf("Go to music class. \n");
break;
default:
printf("Go to Yoga class. \n");
}
}

Answer 1

Do which one?
1. Use a loop. In each loop repetition call tolower() passing the n-th character from the 0-th (first one) forward until string terminator is found (end of string). Use isalpha() function to be sure we convert only alphabetic characters.
http://www.cplusplus.com/reference/cctype/isalpha/
2. I don't know any easy workaround to using string with `switch` statement. But you are welcome to check the following 👇
https://stackoverflow.com/questions/4014827/best-way-to-switch-on-a-string-in-c

Answer 2

1. tolower() works with characters, to change a string to all lowercase you call tolower() for each alphabetic character in the string.
2. `switch` statement in C doesn't have built-in support for string evaluation. Use `if...else if...else` conditional instead.

Answer 3

You need to put quotes surrounding case answers, thats all 😉😊!

Answer 4

But how can I do that?

Answer 5

I put quotes. But still error occurred.