[glib] Bug 666700 â Add some missing (allow-none) annotations

[Philip Withnall <pwithnall src gnome org>]

commit e98f17e5cf1696d418444b23cb092be0eaba3008
Author: Philip Withnall <philip tecnocode co uk>
Date:   Thu Dec 22 00:16:06 2011 +0000

    Bug 666700 â Add some missing (allow-none) annotations
    
    Add some missing (allow-none) annotations to GContentType, GIcon and
    GHashTable methods.
    
    Closes: bgo#666700

 gio/gcontenttype.c |    2 +-
 gio/gicon.c        |    4 ++--
 glib/ghash.c       |    8 ++++----
 3 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/gio/gcontenttype.c b/gio/gcontenttype.c
index b817f83..a9bdb4b 100644
--- a/gio/gcontenttype.c
+++ b/gio/gcontenttype.c
@@ -1649,7 +1649,7 @@ match_match (TreeMatch    *match,
  * g_mount_guess_content_type().
  *
  * Returns: (transfer full) (array zero-terminated=1): an %NULL-terminated
- *     array of zero or more content types, or %NULL. Free with g_strfreev()
+ *     array of zero or more content types. Free with g_strfreev()
  *
  * Since: 2.18
  */
diff --git a/gio/gicon.c b/gio/gicon.c
index 494c2ce..abc9a8d 100644
--- a/gio/gicon.c
+++ b/gio/gicon.c
@@ -94,8 +94,8 @@ g_icon_hash (gconstpointer icon)
 
 /**
  * g_icon_equal:
- * @icon1: pointer to the first #GIcon.
- * @icon2: pointer to the second #GIcon.
+ * @icon1: (allow-none): pointer to the first #GIcon.
+ * @icon2: (allow-none): pointer to the second #GIcon.
  * 
  * Checks if two icons are equal.
  * 
diff --git a/glib/ghash.c b/glib/ghash.c
index 93655fd..6569435 100644
--- a/glib/ghash.c
+++ b/glib/ghash.c
@@ -1047,7 +1047,7 @@ g_hash_table_destroy (GHashTable *hash_table)
  * and has the value %NULL. If you need this distinction, use
  * g_hash_table_lookup_extended().
  *
- * Return value: the associated value, or %NULL if the key is not found
+ * Return value: (allow-none): the associated value, or %NULL if the key is not found
  */
 gpointer
 g_hash_table_lookup (GHashTable    *hash_table,
@@ -1069,8 +1069,8 @@ g_hash_table_lookup (GHashTable    *hash_table,
  * g_hash_table_lookup_extended:
  * @hash_table: a #GHashTable
  * @lookup_key: the key to look up
- * @orig_key: return location for the original key, or %NULL
- * @value: return location for the value associated with the key, or %NULL
+ * @orig_key: (allow-none): return location for the original key, or %NULL
+ * @value: (allow-none): return location for the value associated with the key, or %NULL
  *
  * Looks up a key in the #GHashTable, returning the original key and the
  * associated value and a #gboolean which is %TRUE if the key was found. This
@@ -1532,7 +1532,7 @@ g_hash_table_foreach (GHashTable *hash_table,
  * (keep in mind that an O(n) find/foreach operation issued for all n
  * values in a hash table ends up needing O(n*n) operations).
  *
- * Return value: The value of the first key/value pair is returned,
+ * Return value: (allow-none): The value of the first key/value pair is returned,
  *     for which @predicate evaluates to %TRUE. If no pair with the
  *     requested property is found, %NULL is returned.
  *