dos_compilers/Borland Turbo Pascal v4/TIMEUTIL.PAS
2024-07-01 21:08:56 -07:00

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type
timetype = record h, m, s, l : integer; end;
procedure time_difference( var tStart, tEnd, tDiff : timetype );
var
startSecond, startMinute, startHour : integer;
begin { time_difference }
startSecond := tStart.s;
startMinute := tStart.m;
startHour := tStart.h;
tDiff.l := tEnd.l - tStart.l;
if ( tDiff.l < 0 ) then
begin
tDiff.l := tDiff.l + 100;
startSecond := startSecond + 1;
end;
tDiff.s := tEnd.s - startSecond;
if ( tDiff.s < 0 ) then
begin
tDiff.s := tDiff.s + 60;
startMinute := startMinute + 1;
end;
tDiff.m := tEnd.m - startMinute;
if ( tDiff.m < 0 ) then
begin
tDiff.m := tDiff.m + 60;
startHour := startHour + 1;
end;
tDiff.h := tEnd.h - startHour;
if ( tDiff.h < 0 ) then
tDiff.h := tDiff.h + 12;
end;
procedure print_time_part( num : integer );
begin
if ( num < 10 ) then write( '0' );
write( num );
end;
procedure print_time( var t: timetype );
begin
print_time_part( t.h );
write( ':' );
print_time_part( t.m );
write( ':' );
print_time_part( t.s );
write( '.' );
print_time_part( t.l );
end;
procedure print_elapsed_time( var timeStart, timeEnd: timetype );
var
timeDiff: timetype;
begin
time_difference( timeStart, timeEnd, timeDiff );
write( 'elapsed time: ' );
print_time( timeDiff );
writeln;
end;