concave.h

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//
//  concave.h
//
//  Authors: Nicolae Mihalache & François Vigneron
//
//  This software is released under BSD licence, with an attribution clause (see Licence file).
//  Please cite the reference below if you use or distribute this software.
//
//  • [1] R. Anton, N. Mihalache & F. Vigneron. Fast evaluation of real and complex polynomials. 2022.
//        https://hal.archives-ouvertes.fr/hal-03820369
//
//  Copyright 2022 Univ. Paris-Est Créteil & Univ. de Reims Champagne-Ardenne.
//
 
#ifndef concave_h
#define concave_h
 
#include "ntypes.h"
#include "list.h"
 
// MARK: data types
 
#define BITS_GUARD 6
 
typedef struct {
    prec_t extraBits; 
    prec_t prec;      
    list_t def;       
    list_t all;       
    deg_t start;      
    deg_t mid;        
    deg_t end;        
} concave_struct;
 
typedef concave_struct *concave;
 
// MARK: macros & functions prototypes
 
concave conc_new(list l, prec_t prec);
 
bool conc_free(concave f);
 
bool conc_range(concave f, real_t la);
 
bool conc_range_der(concave f, real_t la);
 
#endif /* conc_h */