//以下代码摘录于stl_hash_map.h //以下的hash<>是个function object,定义于<stl_hash_fun.h>中 //例如:hash<int>::operator()(int x)const{return x;} template <class _Key, class _Tp, class _HashFcn, class _EqualKey, class _Alloc> class hash_map { // requirements: __STL_CLASS_REQUIR...
This allows running even tests that assume the SHA-1 hash function, to sanity-check the behavior of the new mode. ("early transition") Allow both SHA-1 and SHA-256 object names in input. Any object names written to output use SHA-1. This allows users to continue to make use of SHA...
NamePathTypeDescription Digest Digest string The hash value as an output string. Digest Encoding DigestEnc string The digest encoding. Type Type string The hash function used. Key Key string The input value.Post an array for MD4Operation ID: MD4-POST-File Create...
VcomputeIfPresent(Kkey,BiFunction<? superK,? superV,? extendsV> remappingFunction) If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value. booleancontainsKey(Objectkey) ...
cycl./map: The result of the Hashmap test for /usr/dict/words with fast C++ hashmap get queries, with the standard deviation in brackets. This tests the inlinability of the hash function in practise (see size). The smaller the better. size: The object size in byte on AMD64. This af...
This class offers constant time performance for the basic operations (add,remove,containsandsize), assuming the hash function disperses the elements properly among the buckets. Iterating over this set requires time proportional to the sum of theHashSetinstance's size (the number of elements) plus...
Produces the set difference of two sequences according to a specified key selector function. First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Returns the first element in a sequence that satisfies a specified condition. First<TSource>(IEnumerable<TSource>) ...
This is a minimized implementation of the prvhash64 hash function. Arguably, it is the smallest hash function in the world, that produces 64-bit hashes of this quality level. While this function does not provide a throughput that can be considered "fast", due to its statistical properties ...
public ObjectcomputeIfPresent(Object key, BiFunction remappingFunction) 参数:此方法接受两个参数: key与值关联的:key。 remappingFunction:function对值进行运算。 返回值:此方法返回与指定键关联的新的重新映射的值;如果映射返回null,则返回null。 以下示例程序旨在说明computeIfPresent(Key,BiFunction)方法: ...
This allows allows running even tests that assume the SHA-1 hash function, to sanity-check the behavior of the new mode. ("early transition") Allow both SHA-1 and SHA-256 object names in input. Any object names written to output use SHA-1. This allows users to continue to make use ...