first commit

vendor/khanamiryan/qrcode-detector-decoder/lib/common/customFunctions.php

@@ -0,0 +1,93 @@
+<?php
+function arraycopy($srcArray,$srcPos,$destArray, $destPos, $length){//System.arraycopy
+
+    $srcArrayToCopy = array_slice($srcArray,$srcPos,$length);
+    array_splice($destArray,$destPos,$length,$srcArrayToCopy);
+    return $destArray;
+}
+
+
+function overflow32($value) {//There is no need to overflow 64 bits to 32 bit
+    return $value;
+}
+
+function hashCode( $s )
+{
+    $h = 0;
+    $len = strlen($s);
+    for($i = 0; $i < $len; $i++)
+    {
+        $h = overflow32(31 * $h + ord($s[$i]));
+    }
+
+    return $h;
+}
+
+
+function numberOfTrailingZeros($i) {
+    if ($i == 0) return 32;
+    $num = 0;
+    while (($i & 1) == 0) {
+        $i >>= 1;
+        $num++;
+    }
+    return $num;
+}
+function intval32bits($value)
+{
+    $value = ($value & 0xFFFFFFFF);
+
+    if ($value & 0x80000000)
+        $value = -((~$value & 0xFFFFFFFF) + 1);
+
+    return $value;
+}
+
+function uRShift($a, $b)
+{
+
+    if($b == 0) return $a;
+    return ($a >> $b) & ~(1<<(8*PHP_INT_SIZE-1)>>($b-1));
+}
+/*
+function sdvig3($num,$count=1){//>>> 32 bit
+    $s = decbin($num);
+
+    $sarray  = str_split($s,1);
+    $sarray = array_slice($sarray,-32);//32bit
+
+    for($i=0;$i<=1;$i++) {
+        array_pop($sarray);
+        array_unshift($sarray, '0');
+    }
+    return bindec(implode($sarray));
+}
+*/
+
+function sdvig3($a,$b) {
+
+    if ($a >= 0) {
+        return bindec(decbin($a>>$b)); //simply right shift for positive number
+    }
+
+    $bin = decbin($a>>$b);
+
+    $bin = substr($bin, $b); // zero fill on the left side
+
+    $o = bindec($bin);
+    return $o;
+}
+
+function floatToIntBits($float_val)
+{
+    $int = unpack('i', pack('f', $float_val));
+    return $int[1];
+}
+
+function fill_array($index,$count,$value){
+    if($count<=0){
+        return array(0);
+    }else {
+        return array_fill($index, $count, $value);
+    }
+}