```
class Tools
```

Useful static functions

`GET` Value used, when a property is not changed, just read.

`U16L` UTF16LE encoding

`UTF` UTF-8 encoding

```
function g($arr,$fld)
```

Warning-less `$arr[ $fld ]( $fld ) ` or `null`

```
function gg($arr,$fld)
```

Returns `$arr[ $fld ]( $fld ) ` or throws [EVygu](EVygu) if not exists

```
function ga($arr,array $flds)
```

Returns the first existing `$arr[ $f ]( $f )` from `$flds` or null

```
function gd($arr,$fld,$def)
```

Returns `$arr[ $fld ]( $fld )`, or if not exists, `$def`

```
function arrayRemove( array & $arr, $x )
```

Removes first occurence `$x` from `$arr` (strict)

```
function bits($x,$at,$n)
```

Some bits of an integer

 - `$x` The integer

 - `$at` First returned bit index

 - `$n` Number of returned bits

 - `return` The queried bits as integer

```
function withBits($x,$at,$n,$v)
```

An integer with some bits changed

 - `$x` The input integer

 - `$at` First changed bit index

 - `$n` Number of changed bits

 - `$v` Changed bit values

 - `return` A new integer with bits changed

```
function div($a,$b)
```

Integer division

```
function divu($a,$b)
```

Integer division rounding up

```
function utf($uni)
```

An utf-8 character from Unicode value

```
function ulen($s)
```

Char length of an utf8 string

```
function ulower($s)
```

Lowercase utf8 string

```
function notImpl( $obj, $meth )
```

Throws an [EVygu](EVygu) saying `$obj` not implements `$meth`

```
function sysBits()
```

Number of bits in system processor (32,64)

```
function loadFile($fname)
```

Loads a file or throws [EVygu](EVygu)

```
function debug()
```

Shows debug values for all arguments on `STDERR`

```
function str($x)
```

Converts any value to string

```
function cIsNull($x)
```

Is `$x` an FFI NULL value

```
function cstr( \FFI\CData $x )
```

Converts FFI value to string

```
function isAssoc($x)
```

Is `$x` an associative array

```
function type($x)
```

Type (or class name) of `$x`