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archived-php-src/ext/spl/internal/emptyiterator.inc
Peter Kokot 1c850bfcca Sync leading and final newlines in source code files
This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
2018-10-14 12:55:24 +02:00

63 lines
983 B
PHP

<?php
/** @file emptyiterator.inc
* @ingroup SPL
* @brief class EmptyIterator
* @author Marcus Boerger
* @date 2003 - 2009
*
* SPL - Standard PHP Library
*/
/** @ingroup SPL
* @brief An empty Iterator
* @author Marcus Boerger
* @version 1.0
* @since PHP 5.1
*/
class EmptyIterator implements Iterator
{
/** No operation.
* @return void
*/
function rewind()
{
// nothing to do
}
/** @return \c false
*/
function valid()
{
return false;
}
/** This function must not be called. It throws an exception upon access.
* @throw Exception
* @return void
*/
function current()
{
throw new Exception('Accessing the value of an EmptyIterator');
}
/** This function must not be called. It throws an exception upon access.
* @throw Exception
* @return void
*/
function key()
{
throw new Exception('Accessing the key of an EmptyIterator');
}
/** No operation.
* @return void
*/
function next()
{
// nothing to do
}
}
?>