foo.cc: In function 'int main()':
foo.cc:7:13: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    7 |         if(a<=w<=e)
      |            ~^~~
foo.cc:13:21: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   13 |                 if(w<=a<=e)
      |                    ~^~~
foo.cc:19:29: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   19 |                         if(e<=a<=w)
      |                            ~^~~
foo.cc:25:37: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   25 |                                 if(a<=e<=w)
      |                                    ~^~~
foo.cc:30:37: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   30 |                                 if(w<=e<=a)
      |                                    ~^~~
foo.cc:36:45: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   36 |                                         if(e<=w<=a)
      |                                            ~^~~

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