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C++ (
http://www.daniweb.com/forums/forum8.html)
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C++ copy file (
http://www.daniweb.com/forums/thread97080.html)
| ace_joker_bt | Nov 16th, 2007 5:01 pm | |
| C++ copy file I can make this program to copy diverse format wihout losts.
example:
C:\\animal.exe to D:\\animal.exe
(The File location write in locale)
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
char data[50];
char inputFile [100];
cout <<"Insert inputFilePatch :"<<endl;
cin >> inputFile;
ifstream inputFilePatch;
inputFilePatch.open(inputFile);
if(!inputFilePatch) {
cout << "Wrong Location!!!\n";
system("PAUSE");
return 1;
}
char outputFile[100];
cout<<"Insert outputFilePatch "<<endl;
cin >> outputFile;
ofstream outputFilePatch;
outputFilePatch.open(outputFile);
outputFilePatch<<data;
while(inputFilePatch>>data){
outputFilePatch<<data<< endl;
};
outputFilePatch.close();
system("PAUSE");
return 0;
}
This is exactly just for .txt files!
What to change to work these? |
| twomers | Nov 16th, 2007 5:20 pm | |
| Re: C++ copy file I really don't know what you mean, but you might want to open the files in binary mode... |
| Ancient Dragon | Nov 16th, 2007 6:37 pm | |
| Re: C++ copy file If you are trying to write that code for MS-Windows then you can use win32 api CopyFile() function. Otherwise open the input and output files in binary mode, not the default text mode. On *nix it doesn't matter because they are both the same, but on MS-Windows there is a difference. |
| vijayan121 | Nov 16th, 2007 11:21 pm | |
| Re: C++ copy file the easiest, least error-prone and the fastest way to copy an entire stream is this:
output_stream << input_stream.rdbuf() ;. if you are writing a utility like this, error messages are conventionally sent to cerr (not cout).
#include <iostream>
#include <fstream>
using namespace std ;
int main( int argc, char** argv )
{
if( argc != 3 )
{
cout << "usage: " << argv[0] << "<srce file> <dest file>" ;
return 1 ;
}
ifstream srce( argv[1], ios::binary ) ;
if( !srce )
{
cerr << "could not open " << argv[1] << " for reading\n" ;
return 2 ;
}
ofstream dest( argv[2], ios::binary ) ;
if( !dest )
{
cerr << "could not open " << argv[2] << " for writing\n" ;
return 3 ;
}
dest << srce.rdbuf() ;
if( !dest )
{
cerr << "error while copying\n" ;
return 4 ;
}
} |
| ace_joker_bt | Nov 17th, 2007 4:42 am | |
| Re: C++ copy file Thanks for your help!!! |
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