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Diffstat (limited to 'Documentation/technical/api-hashmap.txt')
| -rw-r--r-- | Documentation/technical/api-hashmap.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/technical/api-hashmap.txt b/Documentation/technical/api-hashmap.txt index 8ed92a9f85..ad7a5bddd2 100644 --- a/Documentation/technical/api-hashmap.txt +++ b/Documentation/technical/api-hashmap.txt @@ -193,6 +193,21 @@ more entries. `hashmap_iter_first` is a combination of both (i.e. initializes the iterator and returns the first entry, if any). +`const char *strintern(const char *string)`:: +`const void *memintern(const void *data, size_t len)`:: + + Returns the unique, interned version of the specified string or data, + similar to the `String.intern` API in Java and .NET, respectively. + Interned strings remain valid for the entire lifetime of the process. ++ +Can be used as `[x]strdup()` or `xmemdupz` replacement, except that interned +strings / data must not be modified or freed. ++ +Interned strings are best used for short strings with high probability of +duplicates. ++ +Uses a hashmap to store the pool of interned strings. + Usage example ------------- |