WordPress at a glance
function is not described

wp_simplepie_autoload() WP 3.5.0

WordPress autoloader for SimplePie.

No Hooks.

Return

Null. Nothing.

Usage

wp_simplepie_autoload( $class );

Changelog

Since 3.5.0 Introduced.

Code of wp simplepie autoload: wp-includes/class-simplepie.php WP 5.2.2

<?php
function wp_simplepie_autoload( $class ) {
	if ( 0 !== strpos( $class, 'SimplePie_' ) )
		return;

	$file = ABSPATH . WPINC . '/' . str_replace( '_', '/', $class ) . '.php';
	include( $file );
}