mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-27 10:34:12 +08:00
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/**********************************************************************
|
|
* File: bits16.h (Formerly bits8.h)
|
|
* Description: Code for 8 bit field class.
|
|
* Author: Phil Cheatle
|
|
*
|
|
* (C) Copyright 1991, Hewlett-Packard Ltd.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#ifndef BITS16_H
|
|
#define BITS16_H
|
|
|
|
#include <cstdint> // for uint8_t, ...
|
|
#include "platform.h" // for DLLSYM
|
|
|
|
class DLLSYM BITS16 {
|
|
public:
|
|
uint16_t val;
|
|
|
|
BITS16() { val = 0; } // constructor
|
|
|
|
BITS16(uint16_t init) { val = init; }
|
|
|
|
void turn_on_bit( // flip specified bit
|
|
uint8_t bit_num) { // bit to flip 0..7
|
|
val = val | 01 << bit_num;
|
|
}
|
|
|
|
void turn_off_bit( // flip specified bit
|
|
uint8_t bit_num) { // bit to flip 0..7
|
|
val = val & ~(01 << bit_num);
|
|
}
|
|
|
|
void set_bit( // flip specified bit
|
|
uint8_t bit_num, // bit to flip 0..7
|
|
bool value) { // value to flip to
|
|
if (value)
|
|
val = val | 01 << bit_num;
|
|
else
|
|
val = val & ~(01 << bit_num);
|
|
}
|
|
|
|
bool bit( // access bit
|
|
uint8_t bit_num) const { // bit to access
|
|
return (val >> bit_num) & 01;
|
|
}
|
|
};
|
|
|
|
#endif
|