mirror of
https://github.com/php/php-src.git
synced 2026-04-22 07:28:09 +02:00
jim winstead
461e105069
pow() tests. @- Fixed pow(), and added finite(), isinf(), and isnan(). (Jim) # Jeroen was on crack, and apparently flunked arithmetic. Names of new # functions subject to change if people get persnickety about them. # (They're currently the same as the underlying C library function # names. Hope nobody forgets to update the tests if they change the # names.) # Oh, and pow() uses the new parameter-passing API now.
146 lines
3.6 KiB
PHP
146 lines
3.6 KiB
PHP
--TEST--
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Various pow() tests
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--POST--
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--GET--
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--FILE--
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<?php // $Id$
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define('LONG_MAX', is_int(5000000000)? 9223372036854775807 : 0x7FFFFFFF);
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define('LONG_MIN', -LONG_MAX - 1);
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printf("%d,%d,%d,%d\n",is_int(LONG_MIN ),is_int(LONG_MAX ),
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is_int(LONG_MIN-1),is_int(LONG_MAX+1));
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$tests = <<<TESTS
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0.25 === pow(-2,-2)
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-0.5 === pow(-2,-1)
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1 === pow(-2, 0)
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-2 === pow(-2, 1)
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4 === pow(-2, 2)
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1.0 === pow(-1,-2)
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-1.0 === pow(-1,-1)
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1 === pow(-1, 0)
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-1 === pow(-1, 1)
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1 === pow(-1, 2)
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TRUE === isinf(pow(0,-2))
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TRUE === isinf(pow(0,-1))
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1 === pow( 0, 0)
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0 === pow( 0, 1)
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0 === pow( 0, 2)
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1.0 === pow( 1,-2)
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1.0 === pow( 1,-1)
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1 === pow( 1, 0)
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1 === pow( 1, 1)
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1 === pow( 1, 2)
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0.25 === pow( 2,-2)
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0.5 === pow( 2,-1)
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1 === pow( 2, 0)
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2 === pow( 2, 1)
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4 === pow( 2, 2)
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0.25 === pow(-2,-2.0)
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-0.5 === pow(-2,-1.0)
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1.0 === pow(-2, 0.0)
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-2.0 === pow(-2, 1.0)
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4.0 === pow(-2, 2.0)
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1.0 === pow(-1,-2.0)
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-1.0 === pow(-1,-1.0)
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1.0 === pow(-1, 0.0)
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-1.0 === pow(-1, 1.0)
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1.0 === pow(-1, 2.0)
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TRUE === isinf(pow(0,-2.0))
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TRUE === isinf(pow(0,-1.0))
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1.0 === pow( 0, 0.0)
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0.0 === pow( 0, 1.0)
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0.0 === pow( 0, 2.0)
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1.0 === pow( 1,-2.0)
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1.0 === pow( 1,-1.0)
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1.0 === pow( 1, 0.0)
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1.0 === pow( 1, 1.0)
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1.0 === pow( 1, 2.0)
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0.25 === pow( 2,-2.0)
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0.5 === pow( 2,-1.0)
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1.0 === pow( 2, 0.0)
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2.0 === pow( 2, 1.0)
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4.0 === pow( 2, 2.0)
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2147483648 === pow(2,31)
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-2147483648 ~== pow(-2,31)
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1000000000 === pow(10,9)
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100000000 === pow(-10,8)
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1 === pow(-1,1443279822)
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-1 === pow(-1,1443279821)
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sqrt(2) ~== pow(2,1/2)
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0.25 === pow(-2.0,-2.0)
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-0.5 === pow(-2.0,-1.0)
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1.0 === pow(-2.0, 0.0)
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-2.0 === pow(-2.0, 1.0)
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4.0 === pow(-2.0, 2.0)
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1.0 === pow(-1.0,-2.0)
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-1.0 === pow(-1.0,-1.0)
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1.0 === pow(-1.0, 0.0)
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-1.0 === pow(-1.0, 1.0)
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1.0 === pow(-1.0, 2.0)
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TRUE === isinf(pow(0.0,-2.0))
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TRUE === isinf(pow(0.0,-1.0))
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1.0 === pow( 0.0, 0.0)
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0.0 === pow( 0.0, 1.0)
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0.0 === pow( 0.0, 2.0)
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1.0 === pow( 1.0,-2.0)
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1.0 === pow( 1.0,-1.0)
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1.0 === pow( 1.0, 0.0)
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1.0 === pow( 1.0, 1.0)
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1.0 === pow( 1.0, 2.0)
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0.25 === pow( 2.0,-2.0)
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0.5 === pow( 2.0,-1.0)
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1.0 === pow( 2.0, 0.0)
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2.0 === pow( 2.0, 1.0)
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4.0 === pow( 2.0, 2.0)
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0.25 === pow(-2.0,-2)
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-0.5 === pow(-2.0,-1)
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1.0 === pow(-2.0, 0)
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-2.0 === pow(-2.0, 1)
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4.0 === pow(-2.0, 2)
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1.0 === pow(-1.0,-2)
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-1.0 === pow(-1.0,-1)
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1.0 === pow(-1.0, 0)
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-1.0 === pow(-1.0, 1)
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1.0 === pow(-1.0, 2)
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TRUE === isinf(pow( 0.0,-2))
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TRUE === isinf(pow( 0.0,-1))
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1.0 === pow( 0.0, 0)
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0.0 === pow( 0.0, 1)
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0.0 === pow( 0.0, 2)
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1.0 === pow( 1.0,-2)
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1.0 === pow( 1.0,-1)
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1.0 === pow( 1.0, 0)
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1.0 === pow( 1.0, 1)
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1.0 === pow( 1.0, 2)
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0.25 === pow( 2.0,-2)
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0.5 === pow( 2.0,-1)
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1.0 === pow( 2.0, 0)
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2.0 === pow( 2.0, 1)
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4.0 === pow( 2.0, 2)
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LONG_MAX-1 === pow(LONG_MAX-1,1)
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LONG_MIN+1 === pow(LONG_MIN+1,1)
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(LONG_MAX-1)*(LONG_MAX-1) ~== pow(LONG_MAX-1,2)
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(LONG_MIN+1)*(LONG_MIN+1) ~== pow(LONG_MIN+1,2)
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(float)(LONG_MAX-1) === pow(LONG_MAX-1,1.0)
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(float)(LONG_MIN+1) === pow(LONG_MIN+1,1.0)
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(LONG_MAX-1)*(LONG_MAX-1) ~== pow(LONG_MAX-1,2.0)
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(LONG_MIN+1)*(LONG_MIN+1) ~== pow(LONG_MIN+1,2.0)
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LONG_MAX === pow(LONG_MAX,1)
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LONG_MIN === pow(LONG_MIN,1)
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LONG_MAX*LONG_MAX ~== pow(LONG_MAX,2)
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LONG_MIN*LONG_MIN ~== pow(LONG_MIN,2)
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(float)LONG_MAX === pow(LONG_MAX,1.0)
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(float)LONG_MIN === pow(LONG_MIN,1.0)
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LONG_MAX*LONG_MAX ~== pow(LONG_MAX,2.0)
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LONG_MIN*LONG_MIN ~== pow(LONG_MIN,2.0)
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TESTS;
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echo "On failure, please mail result to php-dev@lists.php.net\n";
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include('../../../../tests/quicktester.inc');
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--EXPECT--
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1,1,0,0
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On failure, please mail result to php-dev@lists.php.net
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OK
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