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--TEST--
Decimal::toFloat
--SKIPIF--
<?php
if (!extension_loaded("decimal")) echo "skip";
?>
--FILE--
<?php
use Decimal\Decimal;
/**
* Shortcut to construct a new decimal.
*/
function decimal(...$args) { return new Decimal(...$args); }
$tests = [
["0", 0.0],
["-0.1", -0.1],
[ "0.1", 0.1],
["-2.4", -2.4],
["-2.5", -2.5],
["-2.6", -2.6],
[ "2.4", 2.4],
[ "2.5", 2.5],
[ "2.6", 2.6],
[ "1E-50", 1E-50],
["-1E-50", -1E-50],
["-1E-1000", 0.0], // Warning
/* [ "NAN", NAN], Can"t test NAN because it does not equal itself */
[ "INF", INF],
["-INF", -INF],
];
foreach ($tests as $test) {
$number = $test[0];
$expect = $test[1];
try {
$result = decimal($number)->toFloat();
} catch (Throwable $e) {
printf("%s: %s\n", get_class($e), $e->getMessage());
continue;
}
if ($result !== $expect) {
print_r(compact("number", "result", "expect"));
}
}
/* Test that toint does not modify the original */
$number = decimal("2.5");
$result = $number->toFloat();
if ((string) $number !== "2.5") {
var_dump("Mutated!", compact("number"));
}
/* Test NAN */
var_dump(decimal("NAN")->toFloat());
?>
--EXPECT--
UnderflowException: Floating point underflow
float(NAN)
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