cf.h

   1 // Requires gmp.h
   2 //
   3 // Opaque interface to continued fractions object.
   4
   5 #ifndef __CF_H__
   6 #define __CF_H__
   7
   8 struct cf_s;
   9 typedef struct cf_s *cf_t;
  10
  11 cf_t cf_new(void *(*func)(cf_t), void *data);
  12 void cf_free(cf_t cf);
  13
  14 void cf_get(mpz_t z, cf_t cf);
  15 void cf_put(cf_t cf, mpz_t z);
  16
  17 int cf_wait(cf_t cf);
  18
  19 void *cf_data(cf_t cf);
  20
  21 // cf_mobius.c:
  22 // Compute convergents of a simple continued fraction x.
  23 // Outputs p then q on channel, where p/q is the last convergent computed.
  24 cf_t cf_new_convergent(cf_t x);
  25
  26 // Compute convergents of (a x + b)/(c x + d)
  27 // where x is a regular continued fraction.
  28 cf_t cf_new_mobius_convergent(cf_t x, mpz_t a, mpz_t b, mpz_t c, mpz_t d);
  29
  30 // Compute convergents of (a x + b)/(c x + d)
  31 // where x is a nonregular continued fraction.
  32 cf_t cf_new_nonregular_mobius_convergent(cf_t x, mpz_t a, mpz_t b, mpz_t c, mpz_t d);
  33
  34 cf_t cf_new_nonregular_to_cf(cf_t x, mpz_t a, mpz_t b, mpz_t c, mpz_t d);
  35
  36 cf_t cf_new_mobius_to_decimal(cf_t x, mpz_t a, mpz_t b, mpz_t c, mpz_t d);
  37 cf_t cf_new_cf_to_decimal(cf_t x);
  38 cf_t cf_new_nonregular_mobius_to_decimal(cf_t x, mpz_t a, mpz_t b, mpz_t c, mpz_t d);
  39
  40 #endif  // __CF_H__