Gpc

Download

gpc@gnu.de

March 2017

1 participants
1 discussions

strict productions
by Paul Isaacs 01 Mar '17

01 Mar '17

Hello, Is the 10206 spec not strict? 6.8.6.2 Indexed-function-accesses An indexed-function-access shall denote a component of the value of a function-access possessing an array-type or a string-type. indexed-function-access = array-function `[' index-expression { `,' index-expression } `]' j string-function `[' index-expression `]' . array-function = function-access . But: 6.8.6 Function accesses function-access = entire-function-access | component-function-access | substring-function-access . component-function-access = indexed-function-access | record-function-access . entire-function-access = function-designator . And: 6.8.5 Function-designators function-designator = function-name [ actual-parameter-list ] According to the productions an indexed-function-access => array-function => function-access=>indexed-function -access Therefore, the only exit is via entire-function-access. But this would lead to a sentence of the form: x( a,b,c)[ 6,7,8 ] being valid and it is not. From: 6.8.6.2 Indexed-function-accesses An indexed-function-access shall denote a component of the value of a function-access possessing an array-type or a string-type. But this would be an identifier and the function-access productions do not indicate identifiers. Are the productions not strict? Does function-access include identifiers? Regards, Paul Isaacs

3 10