pow_basic2.phpt   [plain text]

--TEST--
Test pow() - basic function test pow() - with large exponents
--INI--
precision=14
--FILE--
<?php

$large_exp = 20000;

echo "\n-- The following all result in INF --\n";
var_dump(pow(24, $large_exp)); 
var_dump(pow(0.24, -$large_exp));
var_dump(pow(-0.24, -$large_exp));

echo "\n\n-- The following all result in 0 --\n";
var_dump(pow(0.24, $large_exp));
var_dump(pow(-0.24, $large_exp));
var_dump(pow(24, -$large_exp));
var_dump(pow(-24, -$large_exp));  

echo "\n\n-- The following all result in -0 --\n";
var_dump(pow(-0.24, $large_exp+1));

echo "\n\n-- The following all result in -INF --\n";
var_dump(pow(-24, $large_exp+1));
var_dump(pow(-0.24, -$large_exp+1));

?>
===Done===
--EXPECTF--

-- The following all result in INF --
float(INF)
float(INF)
float(INF)


-- The following all result in 0 --
float(0)
float(0)
float(0)
float(0)


-- The following all result in -0 --
float(%s)


-- The following all result in -INF --
float(-INF)
float(-INF)
===Done===