55   LT_IF,      /*  an unknown #if                      */  enumerator
71 #define linetype_if2elif(lt) ((Linetype)( lt - LT_IF + LT_ELIF ))
1180       retval = LT_IF;  in parseline()
1233       retval = LT_IF;  in parseline()
1283   if (at == LT_IF || bt == LT_IF)  in op_strict()
1285     return ( LT_IF );  in op_strict()
1479     if (lt != LT_IF)  in eval_unary()
1494     if (lt != LT_IF)  in eval_unary()
1509     if (lt != LT_IF)  in eval_unary()
1563       lt = LT_IF;  in eval_unary()
1578       lt = LT_IF;  in eval_unary()
1679   return ( constexpr ? LT_IF : ret == LT_ERROR ? LT_IF : ret );  in ifeval()