/in/foo.c: In function 'main':
/in/foo.c:12:31: warning: implicit declaration of function 'leftRotateDigit' [-Wimplicit-function-declaration]
   12 |         unsigned int result = leftRotateDigit(num);
      |                               ^~~~~~~~~~~~~~~
/in/foo.c: At top level:
/in/foo.c:18:14: error: conflicting types for 'leftRotateDigit'; have 'unsigned int(unsigned int)'
   18 | unsigned int leftRotateDigit(unsigned int num) {
      |              ^~~~~~~~~~~~~~~
/in/foo.c:12:31: note: previous implicit declaration of 'leftRotateDigit' with type 'int()'
   12 |         unsigned int result = leftRotateDigit(num);
      |                               ^~~~~~~~~~~~~~~