C + + File replication

1#include <iostream>2#include <fstream>3 4 voidCopyChar* SRC,Char*DST);5 intMain ()6 {7     using namespacestd;8     Charsrc[ -] ="E:/test/jdk-8u121-windows-x64.exe";9     Chardst[ -] ="E:\\test\\jdk-8u121-windows-x64_bak.exe";Ten copy (SRC, DST); One      A     return 0; - } -  the voidCopyChar* SRC,Char*DST) - { -     using namespacestd; -Ifstreaminch(src,ios::binary); +Ofstream out(dst,ios::binary); -     if(!inch. Is_open ()) { +cout <<"Error Open File"<< src <<Endl; A exit (exit_failure); at     } -     if(! out. Is_open ()) { -cout <<"Error Open File"<< DST <<Endl; - exit (exit_failure); -     } -     if(src = =DST) { incout <<"The src file can ' t be same with DST file"<<Endl; - exit (exit_failure); to     } +     Charbuf[2048]; -     Long LongTotalBytes =0; the      while(inch) *     { $         //read reads 2048 bytes from the in stream into the BUF array while the file pointer moves backwards by 2048 bytesPanax Notoginseng         //if less than 2048 bytes are encountered at the end of the file, the actual fetch bytes are read.  -         inch. Read (BUF,2048);  the         //Gcount () is used to extract the number of bytes read, and write writes the contents of the BUF to the out stream.  +          out. Write (BUF,inch. Gcount ());  ATotalBytes + =inch. Gcount (); the     } +     inch. Close (); -      out. Close (); $}

C + + File replication