ptarjan
39 linhas
1.4 KiB
PHP
39 linhas
1.4 KiB
PHP
<?hh
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function main() {
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$nan = acos(1.01);
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$values = array(-0.0, 0.0, 0, 0.0001, $nan, 1.0);
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$cmps = array(
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function($x, $y) { return $x < $y; },
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function($x, $y) { return $x <= $y; },
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function($x, $y) { return $x > $y; },
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function($x, $y) { return $x >= $y; },
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function($x, $y) { return $x == $y; },
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function($x, $y) { return $x != $y; },
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function($x, $y) { return $x === $y; },
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function($x, $y) { return $x !== $y; });
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$cmpJmps = array(
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function($x, $y) { return $x < $y ? true : false; },
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function($x, $y) { return $x <= $y ? true : false; },
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function($x, $y) { return $x > $y ? true : false; },
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function($x, $y) { return $x >= $y ? true : false; },
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function($x, $y) { return $x == $y ? true : false; },
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function($x, $y) { return $x != $y ? true : false; },
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function($x, $y) { return $x === $y ? true : false; },
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function($x, $y) { return $x !== $y ? true : false; });
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$cmpNames = array("<", "<=", ">", ">=", "==", "!=", "===", "!==");
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foreach ($values as $x) {
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foreach ($values as $y) {
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echo " ---- $x $y ----\n";
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for ($i = 0; $i < sizeof($cmps); $i++) {
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var_dump(" $x $cmpNames[$i] $y:", (string)($cmps[$i]($x, $y)));
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if ($cmps[$i]($x, $y) !== $cmpJmps[$i]($x, $y)) {
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echo "jmps !== cmps, $cmpNames[$i]\n";
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}
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}
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}
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}
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}
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main();
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