,

comma
,

   <character> "," {ASCII} character 44.  Common names: {ITU-T}:
   comma.  Rare: {ITU-T}: cedilla; {INTERCAL}: tail.

   In the {C} programming language, "," is an operator which
   evaluates its first argument (which presumably has
   {side-effects}) and then returns the value of its second
   argument.  This is useful in "for" statements and {macros}.

   (1995-03-10)