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char *strcpy1(char *strDest, const char *strSrc) { assert((strDest != NULL) && (strSrc != NULL)); char *address = strDest; while( (*strDest++ = * strSrc++) != ‘\0‘ ) ; return address ; } char *strcpy2(char *strDest, const char *strSrc) { assert(strSrc != NULL ); assert(strDest != NULL); int i; char *address = strDest; for(i = 0; strSrc[i] != ‘\0‘; i++) strDest[i] = strSrc[i]; strDest[i] = ‘\0‘; return address; } // chain operations int length = strlen( strcpy( strDest, "hello world") ); |
原文：http://www.cnblogs.com/hellogiser/p/strcpy.html