String copy function strcpy notation _ go

Code highlighting produced by Actipro Codehighlighter (freeware) http://www.codehighlighter.com/-->//CppReference.cpp: Defines the entry point of the console application. //#include"stdafx.h"using namespacestd;/** Description: String copy version 1 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error or overlap, undefined * Exception: There may be a string overflow, and dest occupies less space than SRC. */Char*STRCPY_V1 (Char*dest,Const Char*src) {    //when debugging, use assertions, ingress detectionASSERT ((dest!=null) && (src!=NULL)); //Note that the memory here points to the memory where the parameter dest resides, not the stack memory, so it can be returned in the function    Char*to =dest; //The main operation is done in the while condition     while((*dest++ = *src++)! =' /') {NULL; }        //returns the copy string header address for easy concatenating, such as strlen (strcpy (dest, "Hello"))    returnto ;}/** Description: String copy version 2 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupied space is not as large as SRC. */Char*STRCPY_V2 (Char*dest,Const Char*src) {    Char*d =dest; CharC;  while((c=*src++)! =' /')    {        * (dest++) =C; }        *dest=' /'; returnD;}/** Description: String copy version 2 (Can you find out the cause of the error) * Parameter: dest Destination address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupy space is not as large as SRC. */Char*strcpy_v2_error (Char*dest,Const Char*src) {    Char*d =dest; CharC;  while((c=*src++)! =' /')    {        * (d++) =C; }        *d=' /'; returnD;}/** Description: String copy version 3 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupied space is not as large as SRC. */Char*strcpy_v3 (Char*dest,Const Char*src) {    Char*d =dest; CharC;  while(*src)*dest++ = *src++; *dest=' /'; returnD;}/** Description: String Copy version 4 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupied space is not as large as SRC. */Char*STRCPY_V4 (Char*dest,Const Char*src) {    Char*d =dest; CharC;  while((*dest = *src)! =' /') {src++; Dest++; }            *dest=' /'; returnD;}/** Description: String copy version 5 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupied space is not as large as SRC. Restrict keyword-qualified strings cannot overlap. */Char*STRCPY_V5 (Char* _restrict dest,Const Char*_restrict src) {    Char*d =dest; CharC;  while((*dest = *src)! =' /') {src++; Dest++; }            *dest=' /'; returnD;}/** Description: String Copy version 6 * Parameters: dest Destination Address, SRC Source address * Return: Return copy good address, if error, undefined * exception: possible string overflow, and dest occupied space is not as large as SRC. Restrict keyword-qualified strings cannot overlap. */Char*STRCPY_V6 (Char* _restrict dest,Const Char*_restrict src) {    Char*d =dest; CharC;  while(*dest++=*src++); returnD;}int_tmain (intARGC, _tchar*argv[]) {    Charbuf[ +]; Char*buf2 = (Char*)calloc( -,sizeof(Char)); Char*BUF3 = (Char*)malloc( -*sizeof(Char)); Char*buf5 = (Char*)malloc( -*sizeof(Char)); Char*BUF6 = (Char*)malloc( -*sizeof(Char)); printf ("using strcpy_v1,the string ' hello,world ' s length is:%d\n", strlen (STRCPY_V1 (BUF,"Hello,world"))); printf ("using strcpy_v2,the string ' this was the best age ' s length is:%d\n", strlen (Strcpy_v2 (BUF2," the best age"))); printf ("using strcpy_v2,the string ' this was the best age ' s length is:%d\n", strlen (Strcpy_v2_error (BUF2," the best age"))); printf ("using strcpy_v3,the string ' this was the best age ' s length is:%d\n", strlen (Strcpy_v3 (BUF3," the best age"))); printf ("using strcpy_v5,the string ' this was the best age ' s length is:%d\n", strlen (STRCPY_V5 (Buf5," the best age"))); printf ("using strcpy_v6,the string ' this was the best age ' s length is:%d\n", strlen (Strcpy_v6 (BUF6," the best age"))); System ("Pause"); return 0;}

Transferred from: http://www.cnblogs.com/zxher/archive/2010/07/20/1781209.html

String copy function strcpy notation _ go