int main() { slong iter; flint_rand_t state; flint_printf("mul_2exp_si...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++) { fmpr_t x, y, z; mag_t xb, yb; slong e; fmpr_init(x); fmpr_init(y); fmpr_init(z); mag_init(xb); mag_init(yb); mag_randtest_special(xb, state, 100); e = z_randtest(state); mag_get_fmpr(x, xb); mag_mul_2exp_si(yb, xb, e); fmpr_mul_2exp_si(y, x, e); mag_get_fmpr(z, yb); MAG_CHECK_BITS(yb) if (!fmpr_equal(z, y)) { flint_printf("FAIL\n\n"); flint_printf("x = "); fmpr_printd(x, 15); flint_printf("\n\n"); flint_printf("y = "); fmpr_printd(y, 15); flint_printf("\n\n"); flint_printf("z = "); fmpr_printd(z, 15); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); mag_clear(xb); mag_clear(yb); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("set_fmpq...."); fflush(stdout); flint_randinit(state); /* test exact roundtrip R -> Q -> R */ for (iter = 0; iter < 100000; iter++) { slong bits, res; fmpr_t x, z; fmpq_t y; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(z); fmpq_init(y); fmpr_randtest(x, state, bits, 10); fmpr_randtest(z, state, bits, 10); fmpr_get_fmpq(y, x); res = fmpr_set_fmpq(z, y, bits, FMPR_RND_DOWN); if (!fmpr_equal(x, z) || !fmpr_check_ulp(z, res, bits)) { flint_printf("FAIL\n\n"); flint_printf("bits: %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpq_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(z); fmpq_clear(y); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("set_fmpz_2exp...."); fflush(stdout); flint_randinit(state); /* test exact roundtrip R -> Q -> R */ for (iter = 0; iter < 100000; iter++) { slong bits; fmpr_t x, z; fmpz_t y, e; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(z); fmpz_init(y); fmpz_init(e); fmpr_randtest(x, state, bits, 10); fmpr_randtest(z, state, bits, 10); fmpr_get_fmpz_2exp(y, e, x); fmpr_set_fmpz_2exp(z, y, e); if (!fmpr_equal(x, z)) { flint_printf("FAIL\n\n"); flint_printf("bits: %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpz_print(y); flint_printf("\n\n"); flint_printf("e = "); fmpz_print(e); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(z); fmpz_clear(y); fmpz_clear(e); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int fmpr_cmpabs(const fmpr_t x, const fmpr_t y) { int res, xsign, ysign; fmpr_t t; if (fmpr_equal(x, y)) return 0; if (fmpr_is_special(x) || fmpr_is_special(y)) { if (fmpr_is_nan(x) || fmpr_is_nan(y)) return 0; if (fmpr_is_zero(x)) return -1; if (fmpr_is_zero(y)) return 1; if (fmpr_is_inf(x)) return fmpr_is_inf(y) ? 0 : 1; if (fmpr_is_inf(y)) return -1; return -1; } /* Reduces to integer comparison if bottom exponents are the same */ if (fmpz_equal(fmpr_expref(x), fmpr_expref(y))) { res = fmpz_cmpabs(fmpr_manref(x), fmpr_manref(y)); if (res != 0) res = (res < 0) ? -1 : 1; } else { /* TODO: compare position of top exponents to avoid subtraction */ xsign = fmpr_sgn(x); ysign = fmpr_sgn(y); fmpr_init(t); if (xsign == ysign) fmpr_sub(t, x, y, 2, FMPR_RND_DOWN); else fmpr_add(t, x, y, 2, FMPR_RND_DOWN); res = fmpr_sgn(t) * xsign; fmpr_clear(t); } return res; }
int main() { slong iter; flint_rand_t state; flint_printf("get_mpfr...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++) { slong bits; fmpr_t x, z; mpfr_t y; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(z); mpfr_init2(y, bits); fmpr_randtest_special(x, state, bits, 10); fmpr_get_mpfr(y, x, MPFR_RNDN); fmpr_set_mpfr(z, y); if (!fmpr_equal(x, z)) { flint_printf("FAIL\n\n"); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_abort(); } fmpr_clear(x); fmpr_clear(z); mpfr_clear(y); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int fmpr_cmp(const fmpr_t x, const fmpr_t y) { int res, xsign, ysign; fmpr_t t; if (fmpr_equal(x, y)) return 0; if (fmpr_is_special(x) || fmpr_is_special(y)) { if (fmpr_is_nan(x) || fmpr_is_nan(y)) return 0; if (fmpr_is_zero(y)) return fmpr_sgn(x); if (fmpr_is_zero(x)) return -fmpr_sgn(y); if (fmpr_is_pos_inf(x)) return 1; if (fmpr_is_neg_inf(y)) return 1; return -1; } xsign = fmpr_sgn(x); ysign = fmpr_sgn(y); if (xsign != ysign) return (xsign < 0) ? -1 : 1; /* Reduces to integer comparison if bottom exponents are the same */ if (fmpz_equal(fmpr_expref(x), fmpr_expref(y))) return fmpz_cmp(fmpr_manref(x), fmpr_manref(y)) < 0 ? -1 : 1; /* TODO: compare position of top exponents to avoid subtraction */ fmpr_init(t); fmpr_sub(t, x, y, 2, FMPR_RND_DOWN); res = fmpr_sgn(t); fmpr_clear(t); return res; }
int main() { slong iter; flint_rand_t state; flint_printf("sub...."); fflush(stdout); flint_randinit(state); /* test exact subtraction: (x - y) - z == (x - z) - y */ for (iter = 0; iter < 100000; iter++) { slong bits, res1, res2, res3, res4; fmpr_t x, y, z, t, u; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(t); fmpr_init(u); fmpr_randtest_special(x, state, bits, 10); fmpr_randtest_special(y, state, bits, 10); fmpr_randtest_special(z, state, bits, 10); fmpr_randtest_special(t, state, bits, 10); fmpr_randtest_special(u, state, bits, 10); res1 = fmpr_sub(t, x, y, FMPR_PREC_EXACT, FMPR_RND_DOWN); res2 = fmpr_sub(t, t, z, FMPR_PREC_EXACT, FMPR_RND_DOWN); res3 = fmpr_sub(u, x, z, FMPR_PREC_EXACT, FMPR_RND_DOWN); res4 = fmpr_sub(u, u, y, FMPR_PREC_EXACT, FMPR_RND_DOWN); if (!fmpr_equal(t, u) || res1 != FMPR_RESULT_EXACT || res2 != FMPR_RESULT_EXACT || res3 != FMPR_RESULT_EXACT || res4 != FMPR_RESULT_EXACT) { flint_printf("FAIL\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("t = "); fmpr_print(t); flint_printf("\n\n"); flint_printf("u = "); fmpr_print(u); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(t); fmpr_clear(u); } /* compare rounding with mpfr */ for (iter = 0; iter < 100000; iter++) { slong bits, res; int mpfr_res; fmpr_t x, y, z, w; mpfr_t X, Y, Z; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(w); mpfr_init2(X, bits + 100); mpfr_init2(Y, bits + 100); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(y, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(z, state, bits, 10); fmpr_get_mpfr(X, x, MPFR_RNDN); fmpr_get_mpfr(Y, y, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: mpfr_res = mpfr_sub(Z, X, Y, MPFR_RNDZ); res = fmpr_sub(z, x, y, bits, FMPR_RND_DOWN); break; case 1: mpfr_res = mpfr_sub(Z, X, Y, MPFR_RNDA); res = fmpr_sub(z, x, y, bits, FMPR_RND_UP); break; case 2: mpfr_res = mpfr_sub(Z, X, Y, MPFR_RNDD); res = fmpr_sub(z, x, y, bits, FMPR_RND_FLOOR); break; default: mpfr_res = mpfr_sub(Z, X, Y, MPFR_RNDU); res = fmpr_sub(z, x, y, bits, FMPR_RND_CEIL); break; } fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w) || (res == FMPR_RESULT_EXACT) != (mpfr_res == 0) || !fmpr_check_ulp(z, res, bits)) { flint_printf("FAIL\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("w = "); fmpr_print(w); flint_printf("\n\n"); flint_printf("returned: %wd, %d\n", res, mpfr_res); abort(); } /* check error bound */ if (!fmpr_is_nan(z) && !fmpr_is_inf(z)) { fmpr_t z_exact, error_bound, true_error; fmpr_init(z_exact); fmpr_init(error_bound); fmpr_init(true_error); fmpr_set_error_result(error_bound, z, res); fmpr_sub(z_exact, x, y, FMPR_PREC_EXACT, FMPR_RND_DOWN); fmpr_sub(true_error, z, z_exact, FMPR_PREC_EXACT, FMPR_RND_DOWN); fmpr_abs(true_error, true_error); if (fmpr_is_zero(error_bound) != fmpr_is_zero(true_error) || fmpr_cmp(true_error, error_bound) > 0) { flint_printf("FAIL: error bound\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("z_exact = "); fmpr_print(z_exact); flint_printf("\n\n"); flint_printf("true_error = "); fmpr_print(true_error); flint_printf("\n\n"); flint_printf("error_bound = "); fmpr_print(error_bound); flint_printf("\n\n"); abort(); } fmpr_clear(z_exact); fmpr_clear(error_bound); fmpr_clear(true_error); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Y); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("add...."); fflush(stdout); flint_randinit(state); /* test exact addition: (x + y) + z == x + (y + z) */ for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++) { slong bits, res1, res2, res3, res4; fmpr_t x, y, z, t, u; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(t); fmpr_init(u); fmpr_randtest_special(x, state, bits, 10); fmpr_randtest_special(y, state, bits, 10); fmpr_randtest_special(z, state, bits, 10); fmpr_randtest_special(t, state, bits, 10); fmpr_randtest_special(u, state, bits, 10); res1 = fmpr_add(t, x, y, FMPR_PREC_EXACT, FMPR_RND_DOWN); res2 = fmpr_add(t, t, z, FMPR_PREC_EXACT, FMPR_RND_DOWN); res3 = fmpr_add(u, y, z, FMPR_PREC_EXACT, FMPR_RND_DOWN); res4 = fmpr_add(u, x, u, FMPR_PREC_EXACT, FMPR_RND_DOWN); if (!fmpr_equal(t, u) || res1 != FMPR_RESULT_EXACT || res2 != FMPR_RESULT_EXACT || res3 != FMPR_RESULT_EXACT || res4 != FMPR_RESULT_EXACT) { flint_printf("FAIL\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("t = "); fmpr_print(t); flint_printf("\n\n"); flint_printf("u = "); fmpr_print(u); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(t); fmpr_clear(u); } /* compare with add_naive */ for (iter = 0; iter < 1000000 * arb_test_multiplier(); iter++) { slong prec, ret1, ret2; fmpr_t x, y, z, w; fmpr_rnd_t rnd; fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(w); fmpr_randtest_special(x, state, 1 + n_randint(state, 1000), 1 + n_randint(state, 200)); fmpr_randtest_special(y, state, 1 + n_randint(state, 1000), 1 + n_randint(state, 200)); fmpr_randtest_special(z, state, 1 + n_randint(state, 1000), 1 + n_randint(state, 200)); prec = 2 + n_randint(state, 1000); if (n_randint(state, 10) == 0 && fmpz_bits(fmpr_expref(x)) < 10 && fmpz_bits(fmpr_expref(y)) < 10) prec = FMPR_PREC_EXACT; switch (n_randint(state, 4)) { case 0: rnd = FMPR_RND_DOWN; break; case 1: rnd = FMPR_RND_UP; break; case 2: rnd = FMPR_RND_FLOOR; break; default: rnd = FMPR_RND_CEIL; break; } ret1 = fmpr_add(z, x, y, prec, rnd); ret2 = fmpr_add_naive(w, x, y, prec, rnd); if (!fmpr_equal(z, w) || ret1 != ret2 || !fmpr_check_ulp(z, ret1, prec) || !fmpr_check_ulp(w, ret2, prec)) { flint_printf("FAIL\n\n"); flint_printf("iter %wd\n", iter); flint_printf("prec = %wd\n", prec); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("w = "); fmpr_print(w); flint_printf("\n\n"); flint_printf("ret1 = %wd, ret2 = %wd\n", ret1, ret2); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(w); } /* compare rounding with mpfr */ for (iter = 0; iter < 1000000 * arb_test_multiplier(); iter++) { slong bits, res; int mpfr_res; fmpr_t x, y, z, w; mpfr_t X, Y, Z; bits = 2 + n_randint(state, 500); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(w); mpfr_init2(X, bits + 500); mpfr_init2(Y, bits + 500); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 500), 10); fmpr_randtest_special(y, state, bits + n_randint(state, 500), 10); fmpr_randtest_special(z, state, bits, 10); fmpr_get_mpfr(X, x, MPFR_RNDN); fmpr_get_mpfr(Y, y, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: mpfr_res = mpfr_add(Z, X, Y, MPFR_RNDZ); res = fmpr_add(z, x, y, bits, FMPR_RND_DOWN); break; case 1: mpfr_res = mpfr_add(Z, X, Y, MPFR_RNDA); res = fmpr_add(z, x, y, bits, FMPR_RND_UP); break; case 2: mpfr_res = mpfr_add(Z, X, Y, MPFR_RNDD); res = fmpr_add(z, x, y, bits, FMPR_RND_FLOOR); break; default: mpfr_res = mpfr_add(Z, X, Y, MPFR_RNDU); res = fmpr_add(z, x, y, bits, FMPR_RND_CEIL); break; } fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w) || (res == FMPR_RESULT_EXACT) != (mpfr_res == 0) || !fmpr_check_ulp(z, res, bits)) { flint_printf("FAIL\n\n"); flint_printf("iter %wd\n", iter); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("w = "); fmpr_print(w); flint_printf("\n\n"); flint_printf("returned: %wd, %d\n", res, mpfr_res); abort(); } /* check error bound */ if (!fmpr_is_nan(z) && !fmpr_is_inf(z)) { fmpr_t z_exact, error_bound, true_error; fmpr_init(z_exact); fmpr_init(error_bound); fmpr_init(true_error); fmpr_set_error_result(error_bound, z, res); fmpr_add(z_exact, x, y, FMPR_PREC_EXACT, FMPR_RND_DOWN); fmpr_sub(true_error, z, z_exact, FMPR_PREC_EXACT, FMPR_RND_DOWN); fmpr_abs(true_error, true_error); if (fmpr_is_zero(error_bound) != fmpr_is_zero(true_error) || fmpr_cmp(true_error, error_bound) > 0) { flint_printf("FAIL: error bound\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("z_exact = "); fmpr_print(z_exact); flint_printf("\n\n"); flint_printf("true_error = "); fmpr_print(true_error); flint_printf("\n\n"); flint_printf("error_bound = "); fmpr_print(error_bound); flint_printf("\n\n"); abort(); } fmpr_clear(z_exact); fmpr_clear(error_bound); fmpr_clear(true_error); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Y); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("mul_naive...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++) { slong bits; fmpr_t x, y, z, w; mpfr_t X, Y, Z; slong r; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(w); mpfr_init2(X, bits + 100); mpfr_init2(Y, bits + 100); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(y, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(z, state, bits + n_randint(state, 100), 10); fmpr_get_mpfr(X, x, MPFR_RNDN); fmpr_get_mpfr(Y, y, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: mpfr_mul(Z, X, Y, MPFR_RNDZ); r = fmpr_mul_naive(z, x, y, bits, FMPR_RND_DOWN); break; case 1: mpfr_mul(Z, X, Y, MPFR_RNDA); r = fmpr_mul_naive(z, x, y, bits, FMPR_RND_UP); break; case 2: mpfr_mul(Z, X, Y, MPFR_RNDD); r = fmpr_mul_naive(z, x, y, bits, FMPR_RND_FLOOR); break; default: mpfr_mul(Z, X, Y, MPFR_RNDU); r = fmpr_mul_naive(z, x, y, bits, FMPR_RND_CEIL); break; } fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w) || !fmpr_check_ulp(z, r, bits)) { flint_printf("FAIL\n\n"); flint_printf("bits = %wd\n", bits); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = "); fmpr_print(y); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("w = "); fmpr_print(w); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Y); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { long iter; flint_rand_t state; printf("set_round_ui_2exp_fmpz...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000; iter++) { long prec, ret1, ret2; fmpz_t man, exp; fmpr_t x, y; mp_limb_t lo; fmpr_rnd_t rnd; int negative; fmpz_init(man); fmpz_init(exp); fmpr_init(x); fmpr_init(y); prec = 2 + n_randint(state, 1000); if (n_randint(state, 10) == 0) prec = FMPR_PREC_EXACT; negative = n_randint(state, 2); lo = n_randtest(state); fmpz_randtest(exp, state, 1 + n_randint(state, 100)); if (negative) fmpz_neg_ui(man, lo); else fmpz_set_ui(man, lo); switch (n_randint(state, 4)) { case 0: rnd = FMPR_RND_DOWN; break; case 1: rnd = FMPR_RND_UP; break; case 2: rnd = FMPR_RND_FLOOR; break; default: rnd = FMPR_RND_CEIL; break; } ret1 = fmpr_set_round_ui_2exp_fmpz(x, lo, exp, negative, prec, rnd); fmpr_set_fmpz_2exp(y, man, exp); ret2 = fmpr_set_round(y, y, prec, rnd); if (!fmpr_equal(x, y) || ret1 != ret2 || !fmpr_check_ulp(x, ret1, prec) || !fmpr_check_ulp(y, ret2, prec)) { printf("FAIL\n\n"); printf("prec: %ld\n", prec); printf("man = "); fmpz_print(man); printf("\n\n"); printf("exp = "); fmpz_print(exp); printf("\n\n"); printf("x = "); fmpr_print(x); printf("\n\n"); printf("y = "); fmpr_print(y); printf("\n\n"); printf("ret1 = %ld, ret2 = %ld\n\n", ret1, ret2); abort(); } fmpz_clear(man); fmpz_clear(exp); fmpr_clear(x); fmpr_clear(y); } flint_randclear(state); flint_cleanup(); printf("PASS\n"); return EXIT_SUCCESS; }
int main() { long iter; flint_rand_t state; printf("rsqrt...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000; iter++) { long bits, res; fmpr_t x, z, w; mpfr_t X, Z; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(z); fmpr_init(w); mpfr_init2(X, 2 * (bits + 100)); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(z, state, bits + n_randint(state, 100), 10); fmpr_get_mpfr(X, x, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: mpfr_rec_sqrt(Z, X, MPFR_RNDZ); res = fmpr_rsqrt(z, x, bits, FMPR_RND_DOWN); break; case 1: mpfr_rec_sqrt(Z, X, MPFR_RNDA); res = fmpr_rsqrt(z, x, bits, FMPR_RND_UP); break; case 2: mpfr_rec_sqrt(Z, X, MPFR_RNDD); res = fmpr_rsqrt(z, x, bits, FMPR_RND_FLOOR); break; default: mpfr_rec_sqrt(Z, X, MPFR_RNDU); res = fmpr_rsqrt(z, x, bits, FMPR_RND_CEIL); break; } fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w) || !fmpr_check_ulp(z, res, bits)) { printf("FAIL\n\n"); printf("bits = %ld\n", bits); printf("x = "); fmpr_print(x); printf("\n\n"); printf("z = "); fmpr_print(z); printf("\n\n"); printf("w = "); fmpr_print(w); printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); printf("PASS\n"); return EXIT_SUCCESS; }
int main() { long iter; flint_rand_t state; printf("div...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000; iter++) { long bits, r1, r2; fmpr_t x, y, z, w; mpfr_t X, Y, Z; bits = 2 + n_randint(state, 200); fmpr_init(x); fmpr_init(y); fmpr_init(z); fmpr_init(w); mpfr_init2(X, bits + 100); mpfr_init2(Y, bits + 100); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(y, state, bits + n_randint(state, 100), 10); fmpr_randtest_special(z, state, bits + n_randint(state, 100), 10); fmpr_get_mpfr(X, x, MPFR_RNDN); fmpr_get_mpfr(Y, y, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: r1 = mpfr_div(Z, X, Y, MPFR_RNDZ); r2 = fmpr_div(z, x, y, bits, FMPR_RND_DOWN); break; case 1: r1 = mpfr_div(Z, X, Y, MPFR_RNDA); r2 = fmpr_div(z, x, y, bits, FMPR_RND_UP); break; case 2: r1 = mpfr_div(Z, X, Y, MPFR_RNDD); r2 = fmpr_div(z, x, y, bits, FMPR_RND_FLOOR); break; default: r1 = mpfr_div(Z, X, Y, MPFR_RNDU); r2 = fmpr_div(z, x, y, bits, FMPR_RND_CEIL); break; } /* we use slightly different semantics for special values (?) */ if (mpfr_zero_p(Y)) mpfr_set_nan(Z); if (mpfr_inf_p(X) && mpfr_zero_p(Y)) mpfr_set_nan(Z); fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w) || ((r1 == 0) != (r2 == FMPR_RESULT_EXACT)) || !fmpr_check_ulp(z, r2, bits)) { printf("FAIL\n\n"); printf("bits = %ld\n", bits); printf("r1 = %ld, r2 = %ld\n", r1, r2); printf("x = "); fmpr_print(x); printf("\n\n"); printf("y = "); fmpr_print(y); printf("\n\n"); printf("z = "); fmpr_print(z); printf("\n\n"); printf("w = "); fmpr_print(w); printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(y); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Y); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("sum...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 1000000 * arb_test_multiplier(); iter++) { slong i, len, prec, bits, expbits, res1, res2; fmpr_t s1, s2, s3, err, err_bound; fmpr_struct terms[20]; fmpr_rnd_t rnd; len = n_randint(state, 20); bits = 2 + n_randint(state, 1000); prec = 2 + n_randint(state, 1000); expbits = n_randint(state, 14); fmpr_init(s1); fmpr_init(s2); fmpr_init(s3); fmpr_init(err); fmpr_init(err_bound); for (i = 0; i < len; i++) { fmpr_init(terms + i); fmpr_randtest_special(terms + i, state, bits, expbits); } switch (n_randint(state, 4)) { case 0: rnd = FMPR_RND_DOWN; break; case 1: rnd = FMPR_RND_UP; break; case 2: rnd = FMPR_RND_FLOOR; break; default: rnd = FMPR_RND_CEIL; break; } res1 = fmpr_sum(s1, terms, len, prec, rnd); fmpr_zero(s2); for (i = 0; i < len; i++) fmpr_add(s2, s2, terms + i, FMPR_PREC_EXACT, FMPR_RND_DOWN); res2 = fmpr_set_round(s3, s2, prec, rnd); if (!fmpr_equal(s1, s3) || res1 != res2 || !fmpr_check_ulp(s1, res1, prec) || !fmpr_check_ulp(s3, res2, prec)) { flint_printf("FAIL (%wd)\n\n", iter); flint_printf("prec = %wd\n\n", prec); for (i = 0; i < len; i++) { flint_printf("terms[%wd] = ", i); fmpr_print(terms + i); flint_printf("\n\n"); } flint_printf("s1 = "); fmpr_print(s1); flint_printf("\n\n"); flint_printf("s2 = "); fmpr_print(s2); flint_printf("\n\n"); flint_printf("s3 = "); fmpr_print(s3); flint_printf("\n\n"); flint_printf("res1 = %wd, res2 = %wd\n\n", res1, res2); abort(); } fmpr_sub(err, s1, s2, FMPR_PREC_EXACT, FMPR_RND_DOWN); fmpr_abs(err, err); fmpr_set_error_result(err_bound, s1, res1); if (fmpr_cmp(err, err_bound) > 0) { flint_printf("FAIL (error bound)!\n"); flint_printf("prec = %wd\n\n", prec); for (i = 0; i < len; i++) { flint_printf("terms[%wd] = ", i); fmpr_print(terms + i); flint_printf("\n\n"); } flint_printf("s1 = "); fmpr_print(s1); flint_printf("\n\n"); flint_printf("s2 = "); fmpr_print(s2); flint_printf("\n\n"); flint_printf("s3 = "); fmpr_print(s3); flint_printf("\n\n"); flint_printf("error: "); fmpr_print(err); flint_printf("\n\n"); flint_printf("error bound: "); fmpr_print(err_bound); flint_printf("\n\n"); flint_printf("res1 = %wd, res2 = %wd\n\n", res1, res2); abort(); } fmpr_clear(s1); fmpr_clear(s2); fmpr_clear(s3); fmpr_clear(err); fmpr_clear(err_bound); for (i = 0; i < len; i++) fmpr_clear(terms + i); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter, iter2; flint_rand_t state; flint_printf("mul_si...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 3000; iter++) { fmpr_t x, z, v; slong y; slong prec, r1, r2; fmpr_rnd_t rnd; fmpr_init(x); fmpr_init(z); fmpr_init(v); for (iter2 = 0; iter2 < 30; iter2++) { fmpr_randtest_special(x, state, 2000, 200); y = z_randtest(state); prec = 2 + n_randint(state, 2000); switch (n_randint(state, 4)) { case 0: rnd = FMPR_RND_DOWN; break; case 1: rnd = FMPR_RND_UP; break; case 2: rnd = FMPR_RND_FLOOR; break; default: rnd = FMPR_RND_CEIL; break; } switch (n_randint(state, 2)) { case 0: r1 = fmpr_mul_si(z, x, y, prec, rnd); r2 = fmpr_mul_si_naive(v, x, y, prec, rnd); if (!fmpr_equal(z, v) || r1 != r2 || !fmpr_check_ulp(z, r1, prec)) { flint_printf("FAIL!\n"); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = %wd\n\n", y); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("v = "); fmpr_print(v); flint_printf("\n\n"); flint_printf("r1 = %wd, r2 = %wd\n", r1, r2); abort(); } break; default: fmpr_set(v, x); fmpr_set(z, x); r1 = fmpr_mul_si(z, z, y, prec, rnd); r2 = fmpr_mul_si_naive(v, v, y, prec, rnd); if (!fmpr_equal(z, v) || r1 != r2 || !fmpr_check_ulp(z, r1, prec)) { flint_printf("FAIL (aliasing 1)!\n"); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("y = %wd\n\n", y); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("v = "); fmpr_print(v); flint_printf("\n\n"); flint_printf("r1 = %wd, r2 = %wd\n", r1, r2); abort(); } break; } } fmpr_clear(x); fmpr_clear(z); fmpr_clear(v); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }
int main() { slong iter; flint_rand_t state; flint_printf("root...."); fflush(stdout); flint_randinit(state); for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++) { slong bits; ulong k; fmpr_t x, z, w; mpfr_t X, Z; bits = 2 + n_randint(state, 200); k = 1 + n_randint(state, 20); fmpr_init(x); fmpr_init(z); fmpr_init(w); mpfr_init2(X, k * (bits + 100)); mpfr_init2(Z, bits); fmpr_randtest_special(x, state, bits + n_randint(state, 100), 10); fmpr_abs(x, x); fmpr_randtest_special(z, state, bits + n_randint(state, 100), 10); /* occasionally produce perfect powers */ if (n_randint(state, 4) == 0) fmpr_mul(x, x, x, k * bits, FMPR_RND_DOWN); fmpr_get_mpfr(X, x, MPFR_RNDN); switch (n_randint(state, 4)) { case 0: mpfr_root(Z, X, k, MPFR_RNDZ); fmpr_root(z, x, k, bits, FMPR_RND_DOWN); break; case 1: mpfr_root(Z, X, k, MPFR_RNDA); fmpr_root(z, x, k, bits, FMPR_RND_UP); break; case 2: mpfr_root(Z, X, k, MPFR_RNDD); fmpr_root(z, x, k, bits, FMPR_RND_FLOOR); break; case 3: mpfr_root(Z, X, k, MPFR_RNDU); fmpr_root(z, x, k, bits, FMPR_RND_CEIL); break; } fmpr_set_mpfr(w, Z); if (!fmpr_equal(z, w)) { flint_printf("FAIL\n\n"); flint_printf("bits = %wd, k = %wu\n", bits, k); flint_printf("x = "); fmpr_print(x); flint_printf("\n\n"); flint_printf("z = "); fmpr_print(z); flint_printf("\n\n"); flint_printf("w = "); fmpr_print(w); flint_printf("\n\n"); abort(); } fmpr_clear(x); fmpr_clear(z); fmpr_clear(w); mpfr_clear(X); mpfr_clear(Z); } flint_randclear(state); flint_cleanup(); flint_printf("PASS\n"); return EXIT_SUCCESS; }