text: /**
   * \file crc32c.h
   * Functions and types for CRC checks.
   *
   * Generated on Wed Nov  7 16:14:52 2012,
   * by pycrc v0.7.11, http://www.tty1.net/pycrc/
   * using the configuration:
   *    Width        = 32
   *    Poly         = 0x1edc6f41
   *    XorIn        = 0xffffffff
   *    ReflectIn    = True
   *    XorOut       = 0xffffffff
   *    ReflectOut   = True
   *    Algorithm    = table-driven
   *****************************************************************************/
  #ifndef __CRC32C_H__
  #define __CRC32C_H__
  
  #include <stdlib.h>
  #include <stdint.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  /**
   * The definition of the used algorithm.
   *****************************************************************************/
  #define CRC_ALGO_TABLE_DRIVEN 1
  
  
  /**
   * The type of the CRC values.
   *
   * This type must be big enough to contain at least 32 bits.
   *****************************************************************************/
  typedef uint32_t crc_t;
  
  
  /**
   * Reflect all bits of a \a data word of \a data_len bytes.
   *
   * \param data         The data word to be reflected.
   * \param data_len     The width of \a data expressed in number of bits.
   * \return             The reflected data.
   *****************************************************************************/
  crc_t crc_reflect(crc_t data, size_t data_len);
  
  
  /**
   * Calculate the initial crc value.
   *
   * \return     The initial crc value.
   *****************************************************************************/
  static inline crc_t crc_init(void)
  {
      return 0xffffffff;
  }
  
  
  /**
   * Update the crc value with new data.
   *
   * \param crc      The current crc value.
   * \param data     Pointer to a buffer of \a data_len bytes.
   * \param data_len Number of bytes in the \a data buffer.
   * \return         The updated crc value.
   *****************************************************************************/
  crc_t crc_update(crc_t crc, const unsigned char *data, size_t data_len);
  
  
  /**
   * Calculate the final crc value.
   *
   * \param crc  The current crc value.
   * \return     The final crc value.
   *****************************************************************************/
  static inline crc_t crc_finalize(crc_t crc)
  {
      return crc ^ 0xffffffff;
  }
  
  
  #ifdef __cplusplus
  }           /* closing brace for extern "C" */
  #endif
  
  #endif      /* __CRC32C_H__ */
  