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| <a name="Creating-and-freeing-a-hash-table"></a> |
| <h4 class="subsection">2.18.1 Creating and freeing a hash table</h4> |
| <a name="index-bfd_005fhash_005ftable_005finit"></a> |
| <a name="index-bfd_005fhash_005ftable_005finit_005fn"></a> |
| <p>To create a hash table, create an instance of a <code>struct |
| bfd_hash_table</code> (defined in <code>bfd.h</code>) and call |
| <code>bfd_hash_table_init</code> (if you know approximately how many |
| entries you will need, the function <code>bfd_hash_table_init_n</code>, |
| which takes a <var>size</var> argument, may be used). |
| <code>bfd_hash_table_init</code> returns <code>FALSE</code> if some sort of |
| error occurs. |
| </p> |
| <a name="index-bfd_005fhash_005fnewfunc"></a> |
| <p>The function <code>bfd_hash_table_init</code> take as an argument a |
| function to use to create new entries. For a basic hash |
| table, use the function <code>bfd_hash_newfunc</code>. See <a href="Deriving-a-New-Hash-Table-Type.html#Deriving-a-New-Hash-Table-Type">Deriving a New Hash Table Type</a>, for why you would want to use a |
| different value for this argument. |
| </p> |
| <a name="index-bfd_005fhash_005fallocate"></a> |
| <p><code>bfd_hash_table_init</code> will create an objalloc which will be |
| used to allocate new entries. You may allocate memory on this |
| objalloc using <code>bfd_hash_allocate</code>. |
| </p> |
| <a name="index-bfd_005fhash_005ftable_005ffree"></a> |
| <p>Use <code>bfd_hash_table_free</code> to free up all the memory that has |
| been allocated for a hash table. This will not free up the |
| <code>struct bfd_hash_table</code> itself, which you must provide. |
| </p> |
| <a name="index-bfd_005fhash_005fset_005fdefault_005fsize"></a> |
| <p>Use <code>bfd_hash_set_default_size</code> to set the default size of |
| hash table to use. |
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