xref: /PHP-8.1/Zend/tests/dval_to_lval_32.phpt (revision c5401854) 
1--TEST--
2zend_dval_to_lval preserves low bits  (32 bit long)
3--SKIPIF--
4<?php
5if (PHP_INT_SIZE != 4)
6     die("skip for machines with 32-bit longs");
7?>
8--FILE--
9<?php
10    /* test doubles around -4e21 */
11    $values = [
12        -4000000000000001048576.,
13        -4000000000000000524288.,
14        -4000000000000000000000.,
15        -3999999999999999475712.,
16        -3999999999999998951424.,
17    ];
18    /* see if we're rounding negative numbers right */
19    $values[] = -2147483649.8;
20
21    foreach ($values as $v) {
22        var_dump((int)$v);
23    }
24
25?>
26--EXPECT--
27int(-2056257536)
28int(-2055733248)
29int(-2055208960)
30int(-2054684672)
31int(-2054160384)
32int(2147483647)
33