uspace/app/sbi/src/bigint.h

   1 /*
   2  * Copyright (c) 2010 Jiri Svoboda
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef BIGINT_H_
  30 #define BIGINT_H_
  31
  32 #include "mytypes.h"
  33
  34 void bigint_init(bigint_t *bigint, int value);
  35 void bigint_shallow_copy(bigint_t *src, bigint_t *dest);
  36 void bigint_clone(bigint_t *src, bigint_t *dest);
  37 void bigint_reverse_sign(bigint_t *src, bigint_t *dest);
  38 void bigint_destroy(bigint_t *bigint);
  39
  40 errno_t bigint_get_value_int(bigint_t *bigint, int *dval);
  41 bool_t bigint_is_zero(bigint_t *bigint);
  42 bool_t bigint_is_negative(bigint_t *bigint);
  43
  44 void bigint_div_digit(bigint_t *a, bigint_word_t b, bigint_t *quot,
  45     bigint_word_t *rem);
  46
  47 void bigint_add(bigint_t *a, bigint_t *b, bigint_t *dest);
  48 void bigint_sub(bigint_t *a, bigint_t *b, bigint_t *dest);
  49 void bigint_mul(bigint_t *a, bigint_t *b, bigint_t *dest);
  50
  51 void bigint_get_as_string(bigint_t *bigint, char **dptr);
  52 void bigint_print(bigint_t *bigint);
  53
  54 #endif