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gnosygnu_xowa/100_core/src/gplx/Byte_.java

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2.3 KiB

/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com
XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.
You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.
The terms of each license can be found in the source code repository:
GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx;
public class Byte_ {//RF:2017-10-08
public static final String Cls_val_name = "byte";
public static final Class<?> Cls_ref_type = Byte.class;
public static final byte
Zero = 0
, Min_value = Byte.MIN_VALUE
, Max_value_127 = 127
, Val_128 = -128
, Val_255 = -1
;
public static byte By_int(int v) {return v > 127 ? (byte)(v - 256) : (byte)v;} // PERF?: (byte)(v & 0xff)
public static int To_int(byte v) {return v < 0 ? (int)v + 256 : v;}
public static String To_str(byte v) {return new Byte(v).toString();}
public static byte[] To_bry(byte v) {return new byte[] {v};}
public static byte Cast(Object o) {try {return (Byte)o;} catch (Exception e) {throw Err_.new_type_mismatch_w_exc(e, byte.class, o);}}
public static byte Parse(String raw) {return Byte.parseByte(raw);}
public static byte Parse_or(String raw, byte or) {
if (raw == null) return or;
try {return Parse(raw);}
catch (Exception e) {Err_.Noop(e); return or;}
}
public static boolean Match_any(byte v, byte... ary) {
for (byte itm : ary)
if (v == itm) return true;
return false;
}
public static boolean Match_all(byte v, byte... ary) {
for (byte itm : ary)
if (v != itm) return false;
return true;
}
public static int Compare(byte lhs, byte rhs) {
if (lhs == rhs) return CompareAble_.Same;
else if (lhs < rhs) return CompareAble_.Less;
else return CompareAble_.More;
}
public static byte[] Ary(byte... ary) {return ary;}
public static byte[] Ary_by_ints(int... ary) {
int ary_len = ary.length;
byte[] rv = new byte[ary_len];
for (int i = 0; i < ary_len; i++) {
rv[i] = By_int(ary[i]);
}
return rv;
}
}