若dest所指的字符数组大小<=strnlen_s(src, destsz)<destsz则行为未定义;换言之,destsz的错误值不暴露行将发生的缓冲区溢出。 同所有边界检查函数,strcpy_s,仅若实现定义__STDC_LIB_EXT1__且用户在包含<string.h>前定义__STDC_WANT_LIB_EXT1__为整数常量 1 才保证可用。
Null-terminated byte strings Defined in header<string.h> (1) char*strcpy(char*dest,constchar*src); (until C99) char*strcpy(char*restrictdest,constchar*restrictsrc); (since C99) errno_t strcpy_s(char*restrictdest, rsize_t destsz,constchar*restrictsrc); ...
// crt_wcscpy_s.cpp// Compile by using: cl /EHsc /W4 crt_wcscpy_s.cpp// This program uses wcscpy_s and wcscat_s// to build a phrase.#include<cstring> // for wcscpy_s, wcscat_s#include<cstdlib> // for _countof#include<iostream> // for cout, includes <cstdlib>, <cstring>#incl...
// crt_strcpy_s.cpp // This program uses strcpy_s and strcat_s // to build a phrase. // #include <string.h> #include <stdlib.h> #include <stdio.h> #include <errno.h> int main( void ) { char string[80]; // using template versions of strcpy_s and strcat_s: strcpy_s( str...
// crt_wcscpy_s.cpp// Compile by using: cl /EHsc /W4 crt_wcscpy_s.cpp// This program uses wcscpy_s and wcscat_s// to build a phrase.#include<cstring> // for wcscpy_s, wcscat_s#include<cstdlib> // for _countof#include<iostream> // for cout, includes <cstdlib>, <cstring>#incl...
2010-07-20 11:08 −Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->// CppReference.cpp : 定义控制台应用程序的入口点。//... 虚怀若谷 0 45487 strlen() 和 strcpy()函数 2014-04-01 21:13 −strlen() 和 strcpy()函数的区别,这两个一个是返...
// crt_strcpy_s.cpp // This program uses strcpy_s and strcat_s // to build a phrase. // #include <string.h> #include <stdlib.h> #include <stdio.h> #include <errno.h> int main( void ) { char string[80]; // using template versions of strcpy_s and strcat_s: strcpy_s( str...
The debug versions of these functions first fill the buffer with 0xFE. To disable this behavior, use_CrtSetDebugFillThreshold. Generic-Text Routine Mappings String = Hello world from strcpy_s and strcat_s! See Also Reference
The strcpy_s function copies the contents in the address of strSource—this includes the terminating null character—to the location that's specified by strDestination. The destination string must be large enough to hold the source string and its terminating null character. The behavior of strcpy...
// crt_strcpy_s.cpp // This program uses strcpy_s and strcat_s // to build a phrase. // #include <string.h> #include <stdlib.h> #include <stdio.h> #include <errno.h> int main( void ) { char string[80]; // using template versions of strcpy_s and strcat_s: strcpy_s( str...