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Negative numbers should be prepended with a 0

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This commit is contained in:
terrafrost 2012-09-02 11:06:53 -05:00
parent 0f95ddc692
commit c2c3e9420d
1 changed files with 7 additions and 1 deletions
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8
phpseclib/Math/BigInteger.php
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@ -611,7 +611,13 @@ class Math_BigInteger {
if ($start) { // hexdec('') == 0 if ($start) { // hexdec('') == 0
$bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8, '0', STR_PAD_LEFT) . $bits; $bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8, '0', STR_PAD_LEFT) . $bits;
} }
return $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0'); $result = $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0');
if ($twos_compliment && $this->compare(new Math_BigInteger()) > 0 && $this->precision <= 0) {
return '0' . $result;
}
return $result;
} }
/** /**