mmi_util_bit_array_macros.h

来自「Motorola synergy audio component」· C头文件 代码 · 共 71 行

#ifndef MMI_UTIL_BIT_ARRAY_MACROS_INCLUDE
#define MMI_UTIL_BIT_ARRAY_MACROS_INCLUDE

#ifdef __cplusplus
extern "C" {
#endif

/* (c) Copyright Motorola 1997, All rights reserved.        
   Motorola Confidential Proprietary
   Contains confidential proprietary information of Motorola, Inc.
   Reverse engineering is prohibited.
   The copyright notice does not imply publication.
  
   DESCRIPTION: 
       This header file contains macros for bit array manipulation.
       The macros include the ability to retrieve, set, and unset the
       value of any bit in a bit array.
 
 ************** REVISION HISTORY **********************************************
  
   Date       Author      Reference
   ========   ========    ==========================
   97.06.10   joshuag     PR - CSGce10240  
              Development for Speaker Dependent Voice Recognition.
              - Initial creation.
  
*/

/************** HEADER FILE INCLUDES ******************************************/
          
/************** CONSTANTS *****************************************************/

/************** STRUCTURES, ENUMS, AND TYPEDEFS *******************************/

/************** FUNCTION PROTOTYPES *******************************************/

/************** MACROS ********************************************************/

// For bit arrays using UINT8 or INT8 data types.

// Retrieve the value of the specified bit (0, 1) from the specified bit array.
#define MMI_UTIL_get_bit_8(bit_array_ptr, bit_num)   (bit_array_ptr[bit_num >> 3] &  (1 << bit_num % 8) ? 1 : 0)

// Set the value of the specified bit to 1 from the specified bit array.
#define MMI_UTIL_set_bit_8(bit_array_ptr, bit_num)   (bit_array_ptr[bit_num >> 3] |= (1 << bit_num % 8))

// Unset the value of the specified bit to 0 from the specified bit array.
#define MMI_UTIL_unset_bit_8(bit_array_ptr, bit_num) (bit_array_ptr[bit_num >> 3] &= (0xFF ^ (1 << bit_num % 8)))



// For bit arrays using UINT16 or INT16 data types.
 
// Retrieve the value of the specified bit (0, 1) from the specified bit array.
#define MMI_UTIL_get_bit_16(bit_array_ptr, bit_num)   (bit_array_ptr[bit_num >> 4] &  (1 << bit_num % 16) ? 1 : 0)

// Set the value of the specified bit to 1 from the specified bit array.
#define MMI_UTIL_set_bit_16(bit_array_ptr, bit_num)   (bit_array_ptr[bit_num >> 4] |= (1 << bit_num % 16))

// Unset the value of the specified bit to 0 from the specified bit array.
#define MMI_UTIL_unset_bit_16(bit_array_ptr, bit_num) (bit_array_ptr[bit_num >> 4] &= (0xFFFF ^ (1 << bit_num % 16)))

/************** CLASS DEFINITIONS *********************************************/

/************** GLOBAL VARIABLES **********************************************/

#ifdef __cplusplus
}
#endif
#endif