foo.cc: In function 'int main()':
foo.cc:12:19: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
   12 |         while((a|a+1)<b)
      |                  ~^~
foo.cc:13:17: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
   13 |           a=(a|a+1);
      |                ~^~

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