#include "<%=name.toLowerCase()+".h"%>"
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmp.h>
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#include <assert.h>
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mpz_t q;
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mpz_t zero;
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mpz_t one;
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mpz_t mask;
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size_t nBits;
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void <%=name%>_toMpz(mpz_t r, P<%=name%>Element pE) {
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<%=name%>_toNormal(pE);
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if (!(pE->type & <%=name%>_LONG)) {
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mpz_set_si(r, pE->shortVal);
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if (pE->shortVal<0) {
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mpz_add(r, r, q);
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}
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} else {
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mpz_import(r, <%=name%>_N64, -1, 8, -1, 0, (const void *)pE->longVal);
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}
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}
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void <%=name%>_fromMpz(P<%=name%>Element pE, mpz_t v) {
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if (mpz_fits_sint_p(v)) {
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pE->type = <%=name%>_SHORT;
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pE->shortVal = mpz_get_si(v);
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} else {
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pE->type = <%=name%>_LONG;
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for (int i=0; i<<%=name%>_N64; i++) pE->longVal[i] = 0;
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mpz_export((void *)(pE->longVal), NULL, -1, 8, -1, 0, v);
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}
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}
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void <%=name%>_init() {
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mpz_init(q);
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mpz_import(q, <%=name%>_N64, -1, 8, -1, 0, (const void *)Fr_q.longVal);
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mpz_init_set_ui(zero, 0);
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mpz_init_set_ui(one, 1);
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nBits = mpz_sizeinbase (q, 2);
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mpz_init(mask);
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mpz_mul_2exp(mask, one, nBits-1);
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mpz_sub(mask, mask, one);
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}
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void <%=name%>_str2element(P<%=name%>Element pE, char const *s) {
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mpz_t mr;
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mpz_init_set_str(mr, s, 10);
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<%=name%>_fromMpz(pE, mr);
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}
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char *<%=name%>_element2str(P<%=name%>Element pE) {
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mpz_t r;
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if (!(pE->type & <%=name%>_LONG)) {
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if (pE->shortVal>=0) {
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char *r = new char[32];
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sprintf(r, "%d", pE->shortVal);
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return r;
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} else {
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mpz_init_set_si(r, pE->shortVal);
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mpz_add(r, r, q);
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}
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} else {
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<%=name%>_toNormal(pE);
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mpz_init(r);
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mpz_import(r, <%=name%>_N64, -1, 8, -1, 0, (const void *)pE->longVal);
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}
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char *res = mpz_get_str (0, 10, r);
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mpz_clear(r);
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return res;
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}
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void <%=name%>_idiv(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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mpz_t ma;
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mpz_t mb;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mb);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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// char *s1 = mpz_get_str (0, 10, ma);
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// printf("s1 %s\n", s1);
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<%=name%>_toMpz(mb, b);
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// char *s2 = mpz_get_str (0, 10, mb);
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// printf("s2 %s\n", s2);
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mpz_fdiv_q(mr, ma, mb);
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// char *sr = mpz_get_str (0, 10, mr);
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// printf("r %s\n", sr);
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_mod(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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mpz_t ma;
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mpz_t mb;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mb);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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<%=name%>_toMpz(mb, b);
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mpz_fdiv_r(mr, ma, mb);
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_shl(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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mpz_t ma;
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mpz_t mb;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mb);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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<%=name%>_toMpz(mb, b);
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if (mpz_cmp_ui(mb, nBits) >= 0) {
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mpz_set(mr, zero);
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} else {
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mpz_mul_2exp(mr, ma, mpz_get_ui(mb));
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mpz_and(mr, mr, mask);
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}
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_shr(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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mpz_t ma;
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mpz_t mb;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mb);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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<%=name%>_toMpz(mb, b);
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if (mpz_cmp_ui(mb, nBits) >= 0) {
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mpz_set(mr, zero);
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} else {
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mpz_tdiv_q_2exp(mr, ma, mpz_get_ui(mb));
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mpz_and(mr, mr, mask);
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}
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_pow(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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mpz_t ma;
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mpz_t mb;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mb);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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<%=name%>_toMpz(mb, b);
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mpz_powm(mr, ma, mb, q);
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_inv(P<%=name%>Element r, P<%=name%>Element a) {
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mpz_t ma;
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mpz_t mr;
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mpz_init(ma);
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mpz_init(mr);
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<%=name%>_toMpz(ma, a);
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mpz_invert(mr, ma, q);
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<%=name%>_fromMpz(r, mr);
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}
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void <%=name%>_div(P<%=name%>Element r, P<%=name%>Element a, P<%=name%>Element b) {
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<%=name%>Element tmp;
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<%=name%>_inv(&tmp, b);
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<%=name%>_mul(r, a, &tmp);
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}
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void <%=name%>_fail() {
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assert(false);
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}
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