// 
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
// 
// copyfile.cfa -- 
// 
// Author           : Peter A. Buhr
// Created On       : Tue Jul 16 16:47:22 2019
// Last Modified By : Peter A. Buhr
// Last Modified On : Wed Jul 17 18:04:44 2019
// Update Count     : 26
// 

#include <fstream.hfa>
#include <stdlib.hfa>									// new/delete

int main( int argc, char * argv[] ) {
	ifstream * in  = &stdin;							// default files
	ofstream * out = &stdout;
	try {
		choose ( argc ) {
		  case 2, 3:
			  in = new( (const char *)argv[1] );		// open input file first as output creates file
			  if ( argc == 3 ) out = new( (const char *)argv[2] ); // only open output if input opens as output created if nonexistent
		  case 1: ;					// use default files
		  default:
			  exit | "Usage [ input-file (default stdin) [ output-file (default stdout) ] ]";
		} // choose

		char ch;
		*out | nlOff;									// turn off auto newline
		*in  | nlOn;									// turn on reading newline

		for () {										// read all characters
			*in | ch;
		  if ( eof( *in ) ) break;						// eof ?
			*out | ch;
		} // for
	} finally {
		if ( in  != &stdin  ) delete( in );				// close file, do not delete stdin!
		if ( out != &stdout ) delete( out );			// close file, do not delete stdout!
	} // try
} // main

// Local Variables: //
// tab-width: 4 //
// compile-command: "cfa copyfile.cfa" //
// End: //