0000383: function with the same name as a special builtin

ID	Project	Category	View Status	Date Submitted	Last Update

0000383	1003.1(2008)/Issue 7	Shell and Utilities	public	2011-02-18 23:35	2013-04-16 13:06

Reporter	jilles	Assigned To	ajosey
Priority	normal	Severity	Editorial	Type	Omission
Status	Closed	Resolution	Accepted As Marked

Name	Jilles Tjoelker
Organization
User Reference
Section	2.9.5 Function Definition Command
Page Number	2324
Line Number	73374-73406
Interp Status	---
Final Accepted Text	0000383:0000692


Summary	0000383: function with the same name as a special builtin
Description	The command search in 2.9.1.1 means that a function with the same name as a special builtin (such as export) cannot be called. Section 2.9.5 Function Definition Command allows function definitions to fail with a non-zero exit status but does not specify conditions for this. It does not really make much sense to me to allow defining a function but not calling it. In ksh93, trying to define a function with the same name as a special builtin is a run-time fatal error. In dash, it is a parse error. Therefore, forbidding functions with the same name as a special builtin is existing practice in some implementations.
Desired Action	Change The function is named fname; the application shall ensure that it is a name (see XBD Section 3.230, on page 70). to The function is named fname; the application shall ensure that it is a name (see XBD Section 3.230, on page 70) and that it does not match the name of a special built-in utility.
Tags	tc1-2008

Date Modified	Username	Field	Change
2011-02-18 23:35	jilles	New Issue
2011-02-18 23:35	jilles	Status	New => Under Review
2011-02-18 23:35	jilles	Assigned To	=> ajosey
2011-02-18 23:35	jilles	Name	=> Jilles Tjoelker
2011-02-18 23:35	jilles	Section	=> 2.9.5 Function Definition Command
2011-02-18 23:35	jilles	Page Number	=> 2324
2011-02-18 23:35	jilles	Line Number	=> 73374-73406
2011-03-10 16:43	msbrown	Tag Attached: tc1-2008
2011-03-10 16:44	msbrown	Interp Status	=> ---
2011-03-10 16:44	msbrown	Note Added: 0000692
2011-03-10 16:44	msbrown	Status	Under Review => Resolved
2011-03-10 16:44	msbrown	Resolution	Open => Accepted As Marked
2011-03-10 16:45	msbrown	Final Accepted Text	=> 0000383:0000692
2011-09-22 15:35	nick	Relationship added	related to 0000465
2013-04-16 13:06	ajosey	Status	Resolved => Closed

msbrown 2011-03-10 16:44 manager bugnote:0000692	Change The function is named fname; the application shall ensure that it is a name (see XBD Section 3.230, on page 70). to The function is named fname; the application shall ensure that it is a name (see XBD Section 3.230, on page 70) and that it is not the name of a special built-in utility.