foo.c: In function 'hah':
foo.c:7:16: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
    7 |         while (c = a % b)
      |                ^
foo.c:12:13: warning: unused variable 'e' [-Wunused-variable]
   12 |         int e = d / b;
      |             ^
foo.c: In function 'main':
foo.c:34:16: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   34 |         while (x =ss%mm)
      |                ^

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