foo.cc: In function 'int main()':
foo.cc:17:2: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   17 |  else
      |  ^~~~
foo.cc:19:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   19 |   return 0;
      |   ^~~~~~

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