kc3-lang/kc3/libc3/float.h

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• Hash : f0401f0c
  Author : Thomas de Grivel
  Date : 2024-03-04T14:19:12
  

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• libc3/float.h

• /* c3
   * Copyright 2022-2024 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 float.h
   * @brief Floating point numbers operations.
   *
   * Structure to manipulate floating point numbers.
   * C3 floating point numbers are two s_integer :
   *  - num    The numerator.
   *  - div    The divisor, which is always a positive power of 10.
   *
   * All operations are supported in tag_add, tag_mul, tag_neg etc.
   *
   */
  #ifndef LIBC3_FLOAT_H
  #define LIBC3_FLOAT_H
  
  #include "types.h"
  
  /* Stack-allocation compatible functions */
  s_float * float_init (s_float *f);
  s_float * float_init_1 (s_float *f, const s8 *s);
  s_float * float_init_integer (s_float *f, const s_integer *num,
                                const s_integer *div);
  s_float * float_init_w (s_float *f, sw num, uw div);
  
  /* Heap-allocation compatible functions, call float_delete after use */
  void      float_delete (s_float *f);
  s_float * float_new ();
  s_float * float_new_1 (const s8 *s);
  s_float * float_new_integer (const s_integer *num,
                               const s_integer *div);
  s_float * float_new_w (sw num, uw div);
  
  /* Operators */
  s_float * float_add (const s_float *a, const s_float *b, s_float *result);
  s_float * float_mul (const s_float *a, const s_float *b, s_float *result);
  s_float * float_neg (const s_float *f, s_float *result);
  s_float * float_sq (const s_float *f, s_float *result);
  s_float * float_sqrt (const s_float *f, s_float *result);
  s_float * float_sub (const s_float *a, s_float *b, s_float *result);
  
  #endif /* LIBC3_FLOAT_H */
  

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