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The `sleep()` function pauses program execution for the given amount of
milliseconds.
Returns `true` if the program slept.
Returns `false` when the given time value was not convertible to an integer,
negative or zero.
-- Testcase --
{%
let t1 = time();
sleep(1000);
let t2 = time();
if (t2 > t1)
printf("Slept for at least one second.\n");
else
printf("Unexpected time delta: %d\n", t2 - t1);
%}
-- End --
-- Expect stdout --
Slept for at least one second.
-- End --
Passing an invalid value yields `false`.
-- Testcase --
{%
printf("%.J\n", [
sleep("inval"),
sleep([]),
sleep(-1),
sleep(0)
]);
%}
-- End --
-- Expect stdout --
[
false,
false,
false,
false
]
-- End --
|
