u2long.h

来自「在linux系统下开发研究移动通信的工具型代码」· C头文件 代码 · 共 31 行

#ifndef _U2LONG_H
#define _U2LONG_H

/*
 * $Log: u2long.h,v $
 * Revision 1.1  2000/05/03 14:30:04  bjc97r
 * Initial revision
 *
 */

typedef struct {
  unsigned long h;  /* high 32 bit word */
  unsigned long l;  /* low  32 bit word */
} u2long;

u2long u2long_rshift( u2long *src, unsigned n );
u2long u2long_lshift( u2long *src, unsigned n );
u2long u2long_inc( u2long *src );
u2long u2long_dec( u2long *src );
int    u2long_cmp( u2long src1, u2long src2 );

/*
 * strtou2long() converts a string representation of a primitive polynomial
 * into two unsigned long intergers. The max degree of the polynomials
 * this function can handle is 63. The string should be an octal representaion
 * of the polynomial without leading zero.
 */
u2long strtou2long( char *P );

#endif  /* _U2LONG_H */