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#include <cybozu/test.hpp>
#if MCL_SIZEOF_UNIT == 4
// not support
#else
#include <mcl/gmp_util.hpp>
#include <stdint.h>
#include <string>
#include <cybozu/itoa.hpp>
#include <mcl/fp.hpp>
#include "../src/fp_generator.hpp"
#include <iostream>
#include <cybozu/xorshift.hpp>
#include <cybozu/benchmark.hpp>
typedef mcl::FpT<> Fp;
const int MAX_N = 4;
const char *primeTable[] = {
"0x7fffffffffffffffffffffffffffffff", // 127bit(not full)
"0xffffffffffffffffffffffffffffff61", // 128bit(full)
"0xfffffffffffffffffffffffffffffffffffffffeffffee37", // 192bit(full)
"0x2523648240000001ba344d80000000086121000000000013a700000000000013", // 254bit(not full)
};
void strToArray(uint64_t *p, size_t n, const char *pStr)
{
mpz_class x;
mcl::gmp::setStr(x, pStr, 16);
mcl::gmp::getArray(p, n, x);
}
struct Int {
int vn;
uint64_t v[MAX_N];
Int()
: vn(0)
{
}
explicit Int(int vn)
{
if (vn > MAX_N) {
printf("vn(%d) is too large\n", vn);
exit(1);
}
this->vn = vn;
}
void set(const char *str) { setStr(str); }
void set(const Fp& rhs)
{
mcl::gmp::getArray(v, MAX_N, rhs.getMpz());
}
void set(const uint64_t* x)
{
for (int i = 0; i < vn; i++) v[i] = x[i];
}
void setStr(const char *str)
{
strToArray(v, MAX_N, str);
}
std::string getStr() const
{
std::string ret;
for (int i = 0; i < vn; i++) {
ret += cybozu::itohex(v[vn - 1 - i], false);
}
return ret;
}
void put(const char *msg = "") const
{
if (msg) printf("%s=", msg);
printf("%s\n", getStr().c_str());
}
bool operator==(const Int& rhs) const
{
if (vn != rhs.vn) return false;
for (int i = 0; i < vn; i++) {
if (v[i] != rhs.v[i]) return false;
}
return true;
}
bool operator!=(const Int& rhs) const { return !operator==(rhs); }
bool operator==(const Fp& rhs) const
{
Int t(vn);
t.set(rhs);
return operator==(t);
}
bool operator!=(const Fp& rhs) const { return !operator==(rhs); }
};
static inline std::ostream& operator<<(std::ostream& os, const Int& x)
{
return os << x.getStr();
}
void testAddSub(const mcl::fp::Op& op)
{
Fp x, y;
const uint64_t *p = op.p;
Int mx(op.N), my(op.N);
x.setStr("0x8811aabb23427cc");
y.setStr("0x8811aabb23427cc11");
mx.set(x);
my.set(y);
for (int i = 0; i < 30; i++) {
CYBOZU_TEST_EQUAL(mx, x);
x += x;
op.fp_add(mx.v, mx.v, mx.v, p);
}
for (int i = 0; i < 30; i++) {
CYBOZU_TEST_EQUAL(mx, x);
x += y;
op.fp_add(mx.v, mx.v, my.v, p);
}
for (int i = 0; i < 30; i++) {
CYBOZU_TEST_EQUAL(my, y);
y -= x;
op.fp_sub(my.v, my.v, mx.v, p);
}
}
void testNeg(const mcl::fp::Op& op)
{
Fp x;
Int mx(op.N), my(op.N);
const char *tbl[] = {
"0",
"0x12346",
"0x11223344556677881122334455667788",
"0x0abbccddeeffaabb0000000000000000",
};
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
x.setStr(tbl[i]);
mx.set(x);
x = -x;
op.fp_neg(mx.v, mx.v, op.p);
CYBOZU_TEST_EQUAL(mx, x);
}
}
#if 0
void testMulI(const mcl::fp::FpGenerator& fg, int pn)
{
cybozu::XorShift rg;
//printf("pn=%d, %p\n", pn, fg.mulUnit_);
for (int i = 0; i < 100; i++) {
uint64_t x[MAX_N];
uint64_t z[MAX_N + 1];
rg.read(x, pn);
uint64_t y = rg.get64();
mpz_class mx;
mcl::gmp::setArray(mx, x, pn);
mpz_class my;
mcl::gmp::set(my, y);
mx *= my;
uint64_t d = fg.mulUnit_(z, x, y);
z[pn] = d;
mcl::gmp::setArray(my, z, pn + 1);
CYBOZU_TEST_EQUAL(mx, my);
}
{
uint64_t x[MAX_N];
uint64_t z[MAX_N + 1];
rg.read(x, pn);
uint64_t y = rg.get64();
CYBOZU_BENCH_C("mulUnit", 10000000, fg.mulUnit_, z, x, y);
}
}
#endif
void testShr1(const mcl::fp::Op& op, int pn)
{
cybozu::XorShift rg;
for (int i = 0; i < 100; i++) {
uint64_t x[MAX_N];
uint64_t z[MAX_N];
rg.read(x, pn);
mpz_class mx;
mcl::gmp::setArray(mx, x, pn);
mx >>= 1;
op.fp_shr1(z, x);
mpz_class my;
mcl::gmp::setArray(my, z, pn);
CYBOZU_TEST_EQUAL(mx, my);
}
}
void test(const char *pStr)
{
printf("test %s\n", pStr);
Fp::init(pStr, mcl::fp::FP_XBYAK);
const mcl::fp::Op& op = Fp::getOp();
const int pn = (int)op.N;
testAddSub(op);
testNeg(op);
// testMulI(*op.fg, pn);
testShr1(op, pn);
}
CYBOZU_TEST_AUTO(all)
{
if (!mcl::fp::isEnableJIT()) return;
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(primeTable); i++) {
test(primeTable[i]);
}
}
#endif
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