Method
GLibSequencelookup
since: 2.28
Declaration [src]
GSequenceIter*
g_sequence_lookup (
  GSequence* seq,
  gpointer data,
  GCompareDataFunc cmp_func,
  gpointer cmp_data
)
Description [src]
Returns an iterator pointing to the position of the first item found
equal to data according to cmp_func and cmp_data. If more than one
item is equal, it is not guaranteed that it is the first which is
returned. In that case, you can use g_sequence_iter_next() and
g_sequence_iter_prev() to get others.
cmp_func is called with two items of the seq, and cmp_data.
It should return 0 if the items are equal, a negative value if
the first item comes before the second, and a positive value if
the second item comes before the first.
This function will fail if the data contained in the sequence is unsorted.
Available since: 2.28
Parameters
- data
- 
            Type: gpointerData to look up. The argument can be NULL.The data is owned by the caller of the method. 
- cmp_func
- 
            Type: GCompareDataFuncThe function used to compare items in the sequence. 
- cmp_data
- 
            Type: gpointerUser data passed to cmp_func.The argument can be NULL.The data is owned by the caller of the method. 
Return value
Type: GSequenceIter
An GSequenceIter pointing to the position of the
    first item found equal to data according to cmp_func and
    cmp_data, or NULL if no such item exists.
| The returned data is owned by the instance. | 
| The return value can be NULL. |