$ perl -wE 'say (1 == 0) ? "Yes" : "No"'
say (...) interpreted as function at -e line 1.
Useless use of a constant ("Yes") in void context at -e line 1.
Useless use of a constant ("No") in void context at -e line 1.

$ perl -wE 'say +(1 == 0) ? "Yes" : "No"'
No