foo.cc: In function ‘int main()’:
foo.cc:8:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
    8 |         if(a>b>c)
      |            ~^~
foo.cc:10:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
   10 |         if(a>c>b)
      |            ~^~
foo.cc:12:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
   12 |         if(b>a>c)
      |            ~^~
foo.cc:14:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
   14 |         if(b>c>a)
      |            ~^~
foo.cc:16:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
   16 |         if(c>a>b)
      |            ~^~
foo.cc:18:13: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses]
   18 |         if(c>b>a)
      |            ~^~