= '\0') hash = 17000069*hash + *s++; return hash; } void readfile(FILE* fp, char* buffer) { fseek(fp, 0, SEEK_END); size_t size = ftell(fp); rewind(fp); fread(buffer, size, 1, fp); buffer[size] = '\0'; } struct timeval stop, start; void timing_start() { gettime...
The function 'hash' is not a real hash function. It gives different values for strings (all predictable) but for collections (arrays and dictionaries) it just returns the count. If you want a unique hash you can calculate it yourself using primes, or the functions srandom() and random() ...
For strings, the most simple solution is to usestrlen(): interror;// `get_str()` is a made-up function that returns a heap-allocated string.constchar*str=get_str();error=hashmap_set(m,str,strlen(str),400);if(error==-1)fprintf(stderr,"hashmap_set: %s\n",strerror(errno)); ...
boolStringHash::Hash(stringlpszString) { constunsignedlongHASH_OFFSET =0, HASH_A =1, HASH_B =2; unsignedlongnHash = HashString(lpszString, HASH_OFFSET); unsignedlongnHashA = HashString(lpszString, HASH_A); unsignedlongnHashB = HashString(lpszString, HASH_B); unsignedlongnHashStart =...
* hash function. */#include<stddef.h>#include<sd/defs.h>__SD_BEGIN_DECLSstruct__sd_hash_ops{unsignedint(*hash)(constvoid*);int(*compare) (constvoid*,constvoid*);void* (*key_dup) (constvoid*);void(*key_free) (void*);void* (*data_dup) (constvoid*);void(*data_free) (void*...
crypt() — String encoding function cs() — Compare and swap csid() — Character set ID for multibyte character csin(), csinf(), csinl() — Calculate the complex sine csinh(), csinhf(), csinhl() — Calculate the complex hyperbolic sine __CSNameType() — Return codeset nam...
在本文中,我将向读者展示如何使用C语言编写自己的RDI / sRDI加载器,然后展示如何优化代码使其完全位置无关。 作为安全研究员和恶意软件开发人员,能够使用RDI / sRDI等技术创建自己的加载程序可以帮助避免安全软件的检测,并增加给定恶意软件变体的寿命。植入程序越独特,安全软件检测和分析就越困难,从而使其在其预期用途...
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Serves as the default hash function. (Inherited fromObject) GetLifetimeService() Obsolete. Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited fromMarshalByRefObject) GetService(Type)
針對std::unordered_map 和stdext::hash_map 容器系列,先前可以使用 operator<()、operator>()、operator<=() 和operator>=(),雖然其實作並不是很有用。 因此 Visual Studio 2012 的 Visual C++ 移除了這些非標準運算子。 此外,std::unordered_map 系列的 operator==() 和operator!=() 實作已延伸至涵蓋 ...