1YACC: w - line 21 of "./err_syntax24.y", the default action for expr assigns an undefined value to $$ 2YACC: e - line 22 of "./err_syntax24.y", $$ is untyped 3
1YACC: w - line 21 of "./err_syntax24.y", the default action for expr assigns an undefined value to $$ 2YACC: e - line 22 of "./err_syntax24.y", $$ is untyped 3