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#include <mcl/gmp_util.hpp>
#include <vector>
#include <cybozu/test.hpp>
CYBOZU_TEST_AUTO(testBit)
{
const size_t maxBit = 100;
const size_t tbl[] = {
3, 9, 5, 10, 50, maxBit
};
mpz_class a;
std::vector<bool> b(maxBit + 1);
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
a |= mpz_class(1) << tbl[i];
b[tbl[i]] = 1;
}
for (size_t i = 0; i <= maxBit; i++) {
bool c1 = mcl::gmp::testBit(a, i);
bool c2 = b[i] != 0;
CYBOZU_TEST_EQUAL(c1, c2);
}
}
CYBOZU_TEST_AUTO(getStr)
{
const struct {
int x;
const char *dec;
const char *hex;
} tbl[] = {
{ 0, "0", "0" },
{ 1, "1", "1" },
{ 10, "10", "a" },
{ 16, "16", "10" },
{ 123456789, "123456789", "75bcd15" },
{ -1, "-1", "-1" },
{ -10, "-10", "-a" },
{ -16, "-16", "-10" },
{ -100000000, "-100000000", "-5f5e100" },
{ -987654321, "-987654321", "-3ade68b1" },
{ -2147483647, "-2147483647", "-7fffffff" },
};
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
mpz_class x = tbl[i].x;
char buf[32];
size_t n, len;
len = strlen(tbl[i].dec);
n = mcl::gmp::getStr(buf, len, x, 10);
CYBOZU_TEST_EQUAL(n, 0);
n = mcl::gmp::getStr(buf, len + 1, x, 10);
CYBOZU_TEST_EQUAL(n, len);
CYBOZU_TEST_EQUAL_ARRAY(buf, tbl[i].dec, n);
len = strlen(tbl[i].hex);
n = mcl::gmp::getStr(buf, len, x, 16);
CYBOZU_TEST_EQUAL(n, 0);
n = mcl::gmp::getStr(buf, len + 1, x, 16);
CYBOZU_TEST_EQUAL(n, len);
CYBOZU_TEST_EQUAL_ARRAY(buf, tbl[i].hex, n);
}
}
CYBOZU_TEST_AUTO(getRandPrime)
{
for (int i = 0; i < 10; i++) {
mpz_class z;
mcl::gmp::getRandPrime(z, i * 10 + 3);
CYBOZU_TEST_ASSERT(mcl::gmp::isPrime(z));
}
}
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