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sagemath
GitHub Repository: sagemath/sagelib
 Path: blob/master/sage/libs/mwrank/wrap.h
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#ifdef __cplusplus

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/* The order here is very important. */

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#include "eclib/curve.h"

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#include "eclib/egr.h"    

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#include "eclib/descent.h"

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#include "eclib/points.h"

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#include "eclib/isogs.h"

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#include "eclib/marith.h" 

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#endif

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#ifdef __cplusplus

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#define EXTERN extern "C"

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#else 

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#define EXTERN

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#endif

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/**************** Miscellaneous functions ****************/

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EXTERN long mwrank_get_precision();

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EXTERN void mwrank_set_precision(long n);

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EXTERN void mwrank_initprimes(char *pfilename, int verb);

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/**************** bigint ****************/

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#ifndef __cplusplus

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struct bigint;

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#endif

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#ifdef __cplusplus

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extern "C" 

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#endif 

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struct bigint* new_bigint(void);

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EXTERN void del_bigint(struct bigint* x);

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EXTERN struct bigint* str_to_bigint(char* s);

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EXTERN char* bigint_to_str(struct bigint* x);

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/**************** Curvedata ****************/

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#ifndef __cplusplus

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struct Curvedata;

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#endif

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EXTERN struct Curvedata* Curvedata_new(const struct bigint* a1, const struct bigint* a2, 

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				       const struct bigint* a3, const struct bigint* a4, 

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				       const struct bigint* a6, int min_on_init);

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EXTERN void Curvedata_del(struct Curvedata* curve);

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EXTERN char* Curvedata_repr(struct Curvedata* curve);

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EXTERN double Curvedata_silverman_bound(const struct Curvedata* curve);

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EXTERN double Curvedata_cps_bound(const struct Curvedata* curve);

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EXTERN double Curvedata_height_constant(const struct Curvedata* curve);

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EXTERN char* Curvedata_getdiscr(struct Curvedata* curve);

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EXTERN char* Curvedata_conductor(struct Curvedata* curve);

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EXTERN char* Curvedata_isogeny_class(struct Curvedata* E, int verbose);

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/**************** mw -- subgroup of the mordell-weil group ****************/

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#ifndef __cplusplus

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struct mw;

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#endif

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EXTERN struct mw* mw_new(struct Curvedata* curve, int verb, int pp, int maxr);

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EXTERN void mw_del(struct mw* m);

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EXTERN int mw_process(struct Curvedata* curve, struct mw* m,

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                      const struct bigint* x, const struct bigint* y, 

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                      const struct bigint* z, int sat);

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EXTERN char* mw_getbasis(struct mw* m);

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EXTERN char* mw_regulator(struct mw* m);

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EXTERN int mw_rank(struct mw* m);

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/* Returns index and unsat long array, which user must deallocate */

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EXTERN int mw_saturate(struct mw* m, struct bigint* index, char** unsat, 

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                       long sat_bd, int odd_primes_only);

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EXTERN void mw_search(struct mw* m, char* h_lim, int moduli_option, int verb);

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/**************** two_descent ****************/

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#ifndef __cplusplus

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struct two_descent;

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#endif

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EXTERN struct two_descent* two_descent_new(struct Curvedata* curve,  \

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				    int verb, int sel, 

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				    long firstlim, long secondlim, 

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				    long n_aux, int second_descent);

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EXTERN void two_descent_del(struct two_descent* t);

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EXTERN long two_descent_get_rank(struct two_descent* t);

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EXTERN long two_descent_get_rank_bound(struct two_descent* t);

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EXTERN long two_descent_get_selmer_rank(struct two_descent* t);

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EXTERN char* two_descent_get_basis(struct two_descent* t);

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EXTERN int two_descent_ok(const struct two_descent* t);

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EXTERN long two_descent_get_certain(const struct two_descent* t);

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EXTERN void two_descent_saturate(struct two_descent* t, long sat_bd); // = -1 for default set in eclib/src/qcurves/saturate.h (currently 100)

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EXTERN char* two_descent_regulator(struct two_descent* t);

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