kc3-lang/kc3/libkc3/integer.h

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• Hash : 57f6d1ad
  Author : Thomas de Grivel
  Date : 2024-08-05T13:06:41
  

  wip integer_reduce

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• libkc3/integer.h

• /* kc3
   * Copyright 2022,2023,2024 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  /**' ,
   * @file integer.h
   * @brief Integer manipulation functions.
   *
   * Structure to manipulate byte strings.
   */
  #ifndef LIBKC3_INTEGER_H
  #define LIBKC3_INTEGER_H
  
  #include "types.h"
  
  #define MP_IS_ZERO(a) ((a)->used == 0)
  
  /* Stack allocation compatible functions */
  s_integer * integer_init (s_integer *i);
  s_integer * integer_init_1 (s_integer *i, const char *p);
  s_integer * integer_init_cast (s_integer *a, const s_sym * const *type,
                                 const s_tag *tag);
  s_integer * integer_init_copy (s_integer *a, const s_integer *src);
  s_integer * integer_init_f32 (s_integer *a, f32 x);
  s_integer * integer_init_f64 (s_integer *a, f64 x);
  s_integer * integer_init_f128 (s_integer *a, f128 x);
  s_integer * integer_init_ratio (s_integer *a, const s_ratio *r);
  s_integer * integer_init_s8 (s_integer *a, s8 x);
  s_integer * integer_init_s16 (s_integer *a, s16 x);
  s_integer * integer_init_s32 (s_integer *a, s32 x);
  s_integer * integer_init_s64 (s_integer *a, s64 x);
  s_integer * integer_init_sw (s_integer *a, sw x);
  s_integer * integer_init_u8 (s_integer *a, u8 x);
  s_integer * integer_init_u16 (s_integer *a, u16 x);
  s_integer * integer_init_u32 (s_integer *a, u32 x);
  s_integer * integer_init_u64 (s_integer *a, u64 x);
  s_integer * integer_init_uw (s_integer *a, uw x);
  s_integer * integer_init_zero (s_integer *i);
  void        integer_clean (s_integer *i);
  
  /* Setters */
  s_integer * integer_set_f32 (s_integer *a, f32 x);
  s_integer * integer_set_f64 (s_integer *a, f64 x);
  s_integer * integer_set_f128 (s_integer *a, f128 x);
  s_integer * integer_set_double (s_integer *a, double x);
  s_integer * integer_set_ratio (s_integer *a, const s_ratio *r);
  s_integer * integer_set_s32 (s_integer *a, s32 x);
  s_integer * integer_set_s64 (s_integer *a, s64 x);
  s_integer * integer_set_sw (s_integer *a, sw x);
  s_integer * integer_set_u32 (s_integer *a, u32 x);
  s_integer * integer_set_u64 (s_integer *a, u64 x);
  s_integer * integer_set_uw (s_integer *a, uw x);
  
  /* Operators. */
  s_integer * integer_abs (const s_integer *a, s_integer *dest);
  s_integer * integer_add (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_band (const s_integer *a, const s_integer *b,
                            s_integer *dest);
  s_integer * integer_bnot (const s_integer *a, s_integer *dest);
  s_integer * integer_bor (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_bxor (const s_integer *a, const s_integer *b,
                            s_integer *dest);
  s_integer * integer_div (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_gcd (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_lcm (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_lshift (const s_integer *a, sw b, s_integer *dest);
  s_integer * integer_mod (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_mul (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_integer * integer_neg (const s_integer *a, s_integer *dest);
  s_integer * integer_pow (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  s_tag *     integer_sqrt (const s_integer *a, s_tag *dest);
  s_integer * integer_sqrt_positive (const s_integer *a, s_integer *dest);
  s_integer * integer_sub (const s_integer *a, const s_integer *b,
                           s_integer *dest);
  
  /* Constructors, call integer_delete after use. */
  s_integer * integer_new (void);
  s_integer * integer_new_copy (const s_integer *a);
  
  /* Observers */
  uw      integer_bits (const s_integer *i);
  uw      integer_bytes (const s_integer *i);
  bool    integer_is_negative (const s_integer *i);
  bool    integer_is_positive (const s_integer *i);
  bool    integer_is_zero (const s_integer *i);
  s_tag * integer_reduce (const s_integer *i, s_tag *dest);
  f32     integer_to_f32 (const s_integer *i);
  f64     integer_to_f64 (const s_integer *i);
  f128    integer_to_f128 (const s_integer *i);
  s8      integer_to_s8 (const s_integer *i);
  s16     integer_to_s16 (const s_integer *i);
  s32     integer_to_s32 (const s_integer *i);
  s64     integer_to_s64 (const s_integer *i);
  sw      integer_to_sw (const s_integer *i);
  u8      integer_to_u8 (const s_integer *i);
  u16     integer_to_u16 (const s_integer *i);
  u32     integer_to_u32 (const s_integer *i);
  u64     integer_to_u64 (const s_integer *i);
  uw      integer_to_uw (const s_integer *i);
  
  #endif /* LIBKC3_INTEGER_H */
  

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