unsigned int hash = 1315423911; unsigned int i = 0; for(i = 0; i < len; str++, i++) { hash ^= ((hash << 5) + (*str) + (hash >> 2)); } return hash; } /* End Of JS Hash Function */ unsigned int PJWHash(char* str, unsigned int len) {...
//为免忘记,记录一下,来自http://www.partow.net/programming/hashfunctions/#StringHashing unsigned int RSHash(char* str, unsigned int len){ unsigned int b = 378551; unsigned int a = 63689; unsigned int hash = 0; unsigned int i = 0; for(i = 0; i < len; str++, i++) { hash =...
The main topic of this book is implementing hash tables; it's only secondarily about hash functions. This is why you have assumed a priori that you have uniformly distributed hash keys. In reality, this is unlikely to be the case; real data are rarely random samples from the space of ...
/// @detail 本 算法由于在Brian Kernighan与Dennis Ritchie的《The C Programming Language》一书被展示而得 名,是一种简单快捷的hash算法,也是Java目前采用的字符串的Hash算法(累乘因子为31)。 template size_tBKDRHash(constT *str) { registersize_thash = 0; while(size_tch = (size_t)*str++) { 1...
// 函数 void function1(const int Var); // 传递过来的参数在函数内不可变 void function2(const char* Var); // 参数指针所指内容为常量 void function3(char* const Var); // 参数指针为常指针 void function4(const int& Var); // 引用参数在函数内为常量 // 函数返回值 const int function5()...
例如,假设有一个函数,其功能为读取配置文件并由文件内容设置对应的选项。若这些选项由散列值(hash function)所标记,则让这个函数接受一个回调会使得程序设计更加灵活:函数的调用者可以使用所希望的散列算法,该算法由一个将选项名转变为散列值的回调函数实现;因此,回调允许函数调用者在运行时调整原始函数的行为。
上面的分析也是基于VS搞的,不过准确来说函数多个参数的计算顺序是未定义的(the order of evaluation of function arguments are undefined)。笔试题目的运行结果随不同的编译器而异。 这里还有一个 i++ 的典型应用案例。 代码语言:javascript 代码运行次数:0 ...
that child operations are guaranteed to complete before their parents, just the way a function ...
obj) : error LNK2019: unresolved external symbol _main referenced in function "int __cdecl invoke_main(void) mt.exe multi client server socket programming over the internet Multi-line string in command-line arguments multiple projects in a single DLL nafxcwd.lib and libcmtd.lib linking errors ...
A fast hash map/hash table (whatever you want to call it) for the C programming language. - Mashpoe/c-hashmap