qbitfield.h

 
#ifndef QBITFIELD_H
#define QBITFIELD_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
    #include <stdint.h>
    #include <stdlib.h>
 
    typedef struct
    {
        uint32_t *field; /*-> used-defined memory block to hold the bitfield storage */
        size_t size;     /*-> Bits capacity*/
        size_t nSlots;   /*-> Number of 32-bit slots for the bitfield storage*/
    } qBitField_t;
 
    #define QBITFIELD_SIZE( NBITS )     ( 4 * ( ( ( (NBITS)-1 ) / 32 ) + 1 ) )
 
    int qBitField_Setup( qBitField_t * const b,
                         void * const area,
                         const size_t area_size );
 
    int qBitField_ClearAll( qBitField_t * const b );
 
    int qBitField_SetAll( qBitField_t * const b );
 
    int qBitField_SetBit( qBitField_t * const b,
                          const size_t index );
 
    int qBitField_ClearBit( qBitField_t * const b,
                            const size_t index );
 
    int qBitField_ToggleBit( qBitField_t * const b,
                             const size_t index );
 
    uint8_t qBitField_ReadBit( const qBitField_t * const b,
                               const size_t index );
 
    int qBitField_WriteBit( qBitField_t * const b,
                            const size_t index,
                            uint8_t value );
 
    uint32_t qBitField_ReadUINTn( const qBitField_t * const b,
                                  const size_t index,
                                  size_t xBits );
 
    int qBitField_WriteUINTn( qBitField_t * const b,
                              const size_t index,
                              uint32_t value,
                              size_t xBits );
 
    float qBitField_ReadFloat( const qBitField_t * const b,
                               const size_t index );
 
    int qBitField_WriteFloat( qBitField_t * const b,
                              const size_t index,
                              float value );
 
    void* qBitField_Dump( const qBitField_t * const b,
                          void * const dst,
                          size_t n );
 
#ifdef __cplusplus
}
#endif
 
#endif