File input/output: Difference between revisions

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true
end handle _ => false;</syntaxhighlight>
 
=={{header|SparForte}}==
As a structured script.
<syntaxhighlight lang="ada">#!/usr/local/bin/spar
pragma annotate( summary, "filecopy" )
@( description, "The job is to create a file called 'output.txt', and place in it" )
@( description, "the contents of the file 'input.txt'." )
@( category, "tutorials" )
@( author, "Ken O. Burtch" )
@( see_also, "http://rosettacode.org/wiki/File_IO" );
 
pragma software_model( nonstandard );
pragma license( unrestricted );
 
procedure filecopy is
 
begin
if not files.is_readable( "input.txt" ) then
put_line( standard_error, source_info.source_location & ": input file is not readable" );
command_line.set_exit_status( 192 );
return;
end if;
 
-- With standard shell commands
 
cp input.txt output.txt;
 
-- Using built-in capabilities
 
pragma restriction( no_external_commands );
 
declare
inputfile : file_type;
outputfile : file_type;
begin
create( outputfile, out_file, "output.txt" );
open( inputfile, in_file, "input.txt" );
while not end_of_file( inputfile ) loop
put_line( outputfile, get_line( inputfile ) );
end loop;
close( inputfile ) @ ( outputfile );
end;
 
end filecopy;</syntaxhighlight>
 
=={{header|Stata}}==
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