Double comparison

Question

Can I do this in C++?

if (4<5<6)
 cout<<\"valid\"<

i.e a double comparison? Since I know that I can

boo         


        

Answer 1

It compiles but won't do what you expect -

if( 4 < 5 < 2) 

same as

if( (4 < 5) < 2)

same as

if( (1 < 2) )  //1 obtained from cast to boolean

which is of course true, even though I imagine you were expecting something quite different.