doubleHash
Converts a pointer to a #gdouble to a hash value. It can be passed to g_hash_table_new() as the @hash_func parameter, It can be passed to g_hash_table_new() as the @hash_func parameter, when using non-null pointers to doubles as keys in a #GHashTable.
Return
a hash value corresponding to the key.
Since
2.22
Parameters
v
a pointer to a #gdouble key