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191 lines
3.1 KiB
PHP
191 lines
3.1 KiB
PHP
--TEST--
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Test log1p() function : usage variations - different data types as $arg argument
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--INI--
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precision=14
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--FILE--
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<?php
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/* Prototype : float log1p ( float $arg )
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* Description: Returns log(1 + number), computed in a way that is accurate even
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* when the value of number is close to zero
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* Source code: ext/standard/math.c
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*/
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echo "*** Testing log1p() : usage variations ***\n";
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//get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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// heredoc string
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$heredoc = <<<EOT
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abc
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xyz
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EOT;
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// get a class
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class classA
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{
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}
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// get a resource variable
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$fp = fopen(__FILE__, "r");
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$inputs = array(
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// int data
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/*1*/ 0,
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1,
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12345,
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-2345,
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2147483647,
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-2147483648,
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// float data
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/*7*/ 10.5,
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-10.5,
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12.3456789E4,
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12.3456789E-4,
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.5,
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// null data
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/*12*/ NULL,
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null,
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// boolean data
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/*14*/ true,
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false,
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TRUE,
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FALSE,
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// empty data
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/*18*/ "",
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'',
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array(),
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// string data
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/*21*/ "abcxyz",
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'abcxyz',
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$heredoc,
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// object data
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/*24*/ new classA(),
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// undefined data
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/*25*/ @$undefined_var,
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// unset data
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/*26*/ @$unset_var,
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// resource variable
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/*27*/ $fp
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);
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// loop through each element of $inputs to check the behaviour of log1p()
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$iterator = 1;
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foreach($inputs as $input) {
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echo "\n-- Iteration $iterator --\n";
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var_dump(log1p($input));
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$iterator++;
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};
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fclose($fp);
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?>
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===Done===
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--EXPECTF--
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*** Testing log1p() : usage variations ***
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-- Iteration 1 --
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float(0)
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-- Iteration 2 --
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float(0.69314718055995)
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-- Iteration 3 --
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float(9.4210874029538)
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-- Iteration 4 --
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float(NAN)
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-- Iteration 5 --
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float(21.487562597358)
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-- Iteration 6 --
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float(NAN)
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-- Iteration 7 --
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float(2.4423470353692)
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-- Iteration 8 --
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float(NAN)
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-- Iteration 9 --
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float(11.723654587153)
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-- Iteration 10 --
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float(0.0012338064377078)
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-- Iteration 11 --
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float(0.40546510810816)
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-- Iteration 12 --
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float(0)
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-- Iteration 13 --
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float(0)
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-- Iteration 14 --
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float(0.69314718055995)
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-- Iteration 15 --
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float(0)
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-- Iteration 16 --
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float(0.69314718055995)
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-- Iteration 17 --
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float(0)
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-- Iteration 18 --
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Warning: log1p() expects parameter 1 to be double, string given in %s on line %d
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NULL
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-- Iteration 19 --
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Warning: log1p() expects parameter 1 to be double, string given in %s on line %d
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NULL
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-- Iteration 20 --
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Warning: log1p() expects parameter 1 to be double, array given in %s on line %d
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NULL
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-- Iteration 21 --
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Warning: log1p() expects parameter 1 to be double, string given in %s on line %d
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NULL
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-- Iteration 22 --
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Warning: log1p() expects parameter 1 to be double, string given in %s on line %d
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NULL
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-- Iteration 23 --
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Warning: log1p() expects parameter 1 to be double, string given in %s on line %d
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NULL
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-- Iteration 24 --
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Warning: log1p() expects parameter 1 to be double, object given in %s on line %d
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NULL
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-- Iteration 25 --
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float(0)
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-- Iteration 26 --
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float(0)
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-- Iteration 27 --
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Warning: log1p() expects parameter 1 to be double, resource given in %s on line %d
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NULL
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===Done===
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