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D.2.13.3 copyTask
Procedure from library tasks.lib (see tasks_lib).
- Usage:
- copyTask(t), t task
- Return:
- a copy of t.
- Note:
- 'task t1 = copyTask(t2);' is not the same as 'task t1 = t2;'. After
the latter command, t1 points to the same object as t2; any changes
to t2 will also effect t1. In contrast to this, copyTask() creates a
new independent task.
A task whose state is 'started' cannot be copied.
Example:
| | LIB "tasks.lib";
ring R = 0, (x,y), dp;
ideal I = x9y2+x10, x2y7-y8;
task t1 = "std", list(I);
startTasks(t1);
waitAllTasks(t1);
task t2 = copyTask(t1);
killTask(t1);
t2; // t2 survived
==> A task with the following properties:
==> command: std
==> no. of arguments: 1
==> state: completed
==>
getResult(t2);
==> _[1]=x2y7-y8
==> _[2]=x9y2+x10
==> _[3]=x12y+xy11
==> _[4]=x13-xy12
==> _[5]=y14+xy12
==> _[6]=xy13+y12
killTask(t2);
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See also:
compareTasks;
createTask;
getArguments;
getCommand;
getResult;
getState;
killTask;
printTask.
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