111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
#ifndef MY_MPZ_T
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#define MY_MPZ_T
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#include "m-string.h"
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/* This is a trivial encapsulation of an opaque structure.
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Used for test purpose only.*/
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typedef struct my_mpz_s {
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unsigned int n;
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unsigned int a;
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unsigned int *ptr;
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} my_mpz_t[1];
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static void my_mpz_init(my_mpz_t z)
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{
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z->n = 1;
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z->a = 1;
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z->ptr = (unsigned int*) calloc(1, sizeof(unsigned int));
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if (!z->ptr) abort();
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}
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static void my_mpz_clear(my_mpz_t z)
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{
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free(z->ptr);
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z->ptr = NULL;
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}
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static void my_mpz_init_set(my_mpz_t d, const my_mpz_t s)
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{
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d->n = s->n;
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d->a = s->n;
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d->ptr = (unsigned int *) calloc (s->n, sizeof(unsigned int));
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memcpy(d->ptr, s->ptr, sizeof(unsigned int) * s->n);
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}
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static void my_mpz_set(my_mpz_t d, const my_mpz_t s)
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{
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my_mpz_clear(d);
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my_mpz_init_set(d, s);
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}
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static void my_mpz_set_ui(my_mpz_t d, unsigned int v)
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{
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d->n = 1;
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d->ptr[0] = v;
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}
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static void my_mpz_init_set_ui(my_mpz_t d, unsigned int v)
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{
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my_mpz_init(d);
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my_mpz_set_ui(d, v);
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}
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static unsigned int my_mpz_get_ui(const my_mpz_t z)
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{
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return z->ptr[0];
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}
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static void my_mpz_add(my_mpz_t d, const my_mpz_t a, const my_mpz_t b)
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{
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d->ptr[0] = a->ptr[0] + b->ptr[0];
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}
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static void my_mpz_out_str(FILE *f, const my_mpz_t z)
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{
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assert(z->n == 1);
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fprintf(f, "%u", z->ptr[0]);
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}
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static bool my_mpz_in_str(my_mpz_t z, FILE *f)
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{
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z->n = 1;
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return fscanf(f, "%u", &z->ptr[0]) == 1;
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}
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static bool my_mpz_equal_p(const my_mpz_t z1, const my_mpz_t z2)
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{
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if (z1->n != z2->n) return false;
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return memcmp(z1->ptr, z2->ptr, z1->n*sizeof(unsigned int)) == 0;
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}
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static int my_mpz_cmp(const my_mpz_t z1, const my_mpz_t z2)
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{
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if (z1->n != z2->n) return z1-> n < z2->n ? -1 : 1;
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return memcmp(z1->ptr, z2->ptr, z1->n*sizeof(unsigned int));
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}
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static int my_mpz_cmp_ui(const my_mpz_t z1, unsigned int z2)
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{
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if (z1->n != 1) return z1-> n < 1 ? -1 : 1;
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return memcmp(z1->ptr, &z2, sizeof(unsigned int));
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}
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static void my_mpz_str(string_t str, const my_mpz_t z, bool append)
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{
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if (append) string_cat_printf (str, "%u", z->ptr[0]);
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else string_printf (str, "%u", z->ptr[0]);
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}
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#define MY_MPZ_OPLIST \
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(INIT(my_mpz_init), INIT_SET(my_mpz_init_set), SET(my_mpz_set), CLEAR(my_mpz_clear), \
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OUT_STR(my_mpz_out_str), IN_STR(my_mpz_in_str), EQUAL(my_mpz_equal_p), \
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GET_STR(my_mpz_str) )
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#define MYMPZ2_OPLIST \
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(INIT(my_mpz_init), INIT_SET(my_mpz_init_set), SET(my_mpz_set), CLEAR(my_mpz_clear), \
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OUT_STR(my_mpz_out_str), IN_STR(my_mpz_in_str), EQUAL(my_mpz_equal_p), \
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GET_STR(my_mpz_str), CMP(my_mpz_cmp) )
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#endif
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