/in/foo.cc: In function 'bool IsHuiWen(std::__cxx11::string)':
/in/foo.cc:8:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(int i = 0, j = len-1; i <= j; i++, j--)   
   ^~~
/in/foo.cc:11:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    return true;
    ^~~~~~