strlen Get string length (function)参考资料：<a href="http://www.cplusplus.com/reference/clibrary/cstring/" target="_blank" rel="nofollow noopener">http://www.cplusplus.com/reference/clibrary/cstring/</a> 常用函数：strlen 求字符串长度strcmp 比较2个字符串是否一样strcat 字符串连接操作strcpy 字符串拷贝操作strstr 查询子串更具体的你可以查阅msdnMSDN
loop:50000000,strcmp_asm,time:753 ms,strcmp_normal,time:1130 ms input loop:50000000,iSamelen:1 loop:50000000,strcmp_asm,time:670 ms,strcmp_normal,time:1040 ms
string.h头文件中的函数：1、#include <algorithm> //STL 通用算法 2、#include <bitset> //STL 位集容器 3、#include <complex> //复数类 4、#include <deque> //STL双端队列容器 5、#include <exception> //异常处理类 6、#include <list> //STL 线性列表容器 7、#include //STL 映...
You can use the strcmp() function from the <cstring> library to compare two strings.ExampleHeres a given example showing a comparison between two C-style strings −Open Compiler #include <iostream> #include <cstring> int main() { const char* str1 = "hello"; const char* str2 = "...
_CRTIMP int __cdecl strcmp(const char *, const char *); _CRTIMP size_t __cdecl strlen(const char *); #else void * __cdecl memcpy(void *, const void *, size_t); int __cdecl memcmp(const void *, const void *, size_t); ...
string, cstring, string.h 一、string头文件 主要包含一些字符串转换的函数 // sto* NARROW CONVERSIONS // sto* WIDE CONVERSIONS stoi //convert string to int stol //convert string to long stoul //convert string to unsigned long stoll //convert string to long long ...
functions.#undefmemchr#undefmemcmp#undefmemcpy#undefmemmove#undefmemset#undefstrcat#undefstrchr#undefstrcmp#undefstrcoll#undefstrcpy#undefstrcspn#undefstrerror#undefstrlen#undefstrncat#undefstrncmp#undefstrncpy#undefstrpbrk#undefstrrchr#undefstrspn#undefstrstr#undefstrtok#undefstrxfrmnamespacestd _GLIBCXX_VISIBILITY...
This was his instructions on that: The C++ library has numerous functions for handling C-strings. These functions (such as strlen, strcpy, strcmp and cin.getline) perform various tests and manipulations, and require the <cstring> header file be included. ...
} while (strcmp (szKey,szInput) != 0); cout<<"Correct." } void function4(void) { char str[][5] = { "R2D2" , "C3PO" , "R2A6" }; int n; cout<<"This function gives an example of strncmp."<<endl; cout<<"strncmp compares the first character of each string. If they are"...
/* *Definesize_t,wchar_tandNULL */ #define__need_size_t #define__need_wchar_t #define__need_NULL #ifndefRC_INVOKED #include<stddef.h> #endif/*NotRC_INVOKED*/ #ifndefRC_INVOKED #ifdef__cplusplus extern"C"{ #endif /* *PrototypesoftheANSIStandardClibrarystringfunctions. */ _CRTIMP...