Add signed integers (arithmetics and some testing not implemented yet)

Signed-off-by: Mattias Andrée <m@maandree.se>

1 files changed, 188 insertions, 0 deletions

diff --git a/libj2_j2i_cmp_ji.c b/libj2_j2i_cmp_ji.c
new file mode 100644
index 0000000..371b382
--- /dev/null
+++ b/libj2_j2i_cmp_ji.c
@@ -0,0 +1,188 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+extern inline int libj2_j2i_cmp_ji(const struct libj2_j2i *a, intmax_t b);
+/* TODO Add man page */
+
+
+#else
+
+static int
+cmp_(uintmax_t a_high, uintmax_t a_low, intmax_t b)
+{
+	struct libj2_j2i a, c;
+	int ret;
+
+	a.high = a_high;
+	a.low = a_low;
+
+	ret = libj2_j2i_cmp_ji(&a, b);
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_ji_cmp_j2i(b, &a) == (ret ? -ret : 0));
+
+	EXPECT(libj2_j2i_lt_ji(&a, b) == (ret < 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_j2i_le_ji(&a, b) == (ret <= 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_j2i_gt_ji(&a, b) == (ret > 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_j2i_ge_ji(&a, b) == (ret >= 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_j2i_eq_ji(&a, b) == (ret == 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_j2i_ne_ji(&a, b) == (ret != 0));
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+
+	EXPECT(libj2_ji_lt_j2i(b, &a) == (ret > 0));
+	EXPECT(libj2_ji_le_j2i(b, &a) == (ret >= 0));
+	EXPECT(libj2_ji_gt_j2i(b, &a) == (ret < 0));
+	EXPECT(libj2_ji_ge_j2i(b, &a) == (ret <= 0));
+	EXPECT(libj2_ji_eq_j2i(b, &a) == (ret == 0));
+	EXPECT(libj2_ji_ne_j2i(b, &a) == (ret != 0));
+
+	c = (struct libj2_j2i){111, 222};
+	libj2_j2i_max_ji_to_j2i(&a, b, &c);
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+	if (ret >= 0)
+		EXPECT(libj2_j2i_eq_j2i(&c, &a) == 1);
+	if (ret <= 0)
+		EXPECT(libj2_j2i_eq_ji(&c, b) == 1);
+
+	c = a;
+	libj2_j2i_max_ji(&c, b);
+	if (ret >= 0)
+		EXPECT(libj2_j2i_eq_j2i(&c, &a) == 1);
+	if (ret <= 0)
+		EXPECT(libj2_j2i_eq_ji(&c, b) == 1);
+
+	c = (struct libj2_j2i){111, 222};
+	libj2_j2i_min_ji_to_j2i(&a, b, &c);
+	EXPECT(a.high == a_high);
+	EXPECT(a.low == a_low);
+	if (ret <= 0)
+		EXPECT(libj2_j2i_eq_j2i(&c, &a) == 1);
+	if (ret >= 0)
+		EXPECT(libj2_j2i_eq_ji(&c, b) == 1);
+
+	c = a;
+	libj2_j2i_min_ji(&c, b);
+	if (ret <= 0)
+		EXPECT(libj2_j2i_eq_j2i(&c, &a) == 1);
+	if (ret >= 0)
+		EXPECT(libj2_j2i_eq_ji(&c, b) == 1);
+
+	return ret;
+}
+
+
+static int
+cmp(uintmax_t a_high, uintmax_t a_low, uintmax_t b)
+{
+	struct libj2_j2i a;
+	int ret;
+
+	ret = cmp_(a_high, a_low, +(intmax_t)b);
+
+	EXPECT(cmp_(a_high, a_low, -(intmax_t)b) == (b ? +1 : ret));
+
+	if (!a_high && !a_low)
+		return ret;
+
+	a.high = a_high;
+	a.low = a_low;
+	libj2_minus_j2i(&a);
+
+	EXPECT(cmp_(a.high, a.low, +(intmax_t)b) == -1);
+	EXPECT(cmp_(a.high, a.low, -(intmax_t)b) == -ret);
+
+	return ret;
+}
+
+
+int
+main(void)
+{
+	const uintmax_t umax = UINTMAX_MAX;
+	const uintmax_t max = (uintmax_t)INTMAX_MAX;
+	const uintmax_t min = (uintmax_t)INTMAX_MIN;
+
+	EXPECT(cmp(0, 0, 0) == 0);
+	EXPECT(cmp(0, 1, 0) == +1);
+	EXPECT(cmp(1, 0, 0) == +1);
+	EXPECT(cmp(1, 1, 0) == +1);
+	EXPECT(cmp(0, umax, 0) == +1);
+	EXPECT(cmp(max, 0, 0) == +1);
+	EXPECT(cmp(max, umax, 0) == +1);
+	EXPECT(cmp(max, umax - 1U, 0) == +1);
+
+	EXPECT(cmp(0, 0, 1) == -1);
+	EXPECT(cmp(0, 1, 1) == 0);
+	EXPECT(cmp(1, 0, 1) == +1);
+	EXPECT(cmp(1, 1, 1) == +1);
+	EXPECT(cmp(0, umax, 1) == +1);
+	EXPECT(cmp(max, 0, 1) == +1);
+	EXPECT(cmp(max, umax, 1) == +1);
+	EXPECT(cmp(max, umax - 1U, 1) == +1);
+
+	EXPECT(cmp(0, 0, 2) == -1);
+	EXPECT(cmp(0, 1, 2) == -1);
+	EXPECT(cmp(1, 0, 2) == +1);
+	EXPECT(cmp(1, 1, 2) == +1);
+	EXPECT(cmp(0, umax, 2) == +1);
+	EXPECT(cmp(max, 0, 2) == +1);
+	EXPECT(cmp(max, umax, 2) == +1);
+	EXPECT(cmp(max, umax - 1U, 2) == +1);
+
+	EXPECT(cmp(0, 0, max) == -1);
+	EXPECT(cmp(0, 1, max) == -1);
+	EXPECT(cmp(1, 0, max) == +1);
+	EXPECT(cmp(1, 1, max) == +1);
+	EXPECT(cmp(0, umax, max) == +1);
+	EXPECT(cmp(0, max, max) == 0);
+	EXPECT(cmp(0, max + 1U, max) == +1);
+	EXPECT(cmp(max, 0, max) == +1);
+	EXPECT(cmp(max, umax, max) == +1);
+	EXPECT(cmp(max, umax - 1U, max) == +1);
+
+	EXPECT(cmp(0, 0, max - 1U) == -1);
+	EXPECT(cmp(0, 1, max - 1U) == -1);
+	EXPECT(cmp(1, 0, max - 1U) == +1);
+	EXPECT(cmp(1, 1, max - 1U) == +1);
+	EXPECT(cmp(0, umax, max - 1U) == +1);
+	EXPECT(cmp(max, 0, max - 1U) == +1);
+	EXPECT(cmp(max, umax, max - 1U) == +1);
+	EXPECT(cmp(max, umax - 1U, max - 1U) == +1);
+
+	EXPECT(cmp_(min, 0, 0) == -1);
+	EXPECT(cmp_(min, 0, 1) == -1);
+	EXPECT(cmp_(min, 0, (intmax_t)max) == -1);
+
+	EXPECT(cmp_(0, 0, (intmax_t)min) == +1);
+	EXPECT(cmp_(0, 1, (intmax_t)min) == +1);
+	EXPECT(cmp_(1, 0, (intmax_t)min) == +1);
+	EXPECT(cmp_(1, 1, (intmax_t)min) == +1);
+	EXPECT(cmp_(max, umax, (intmax_t)min) == +1);
+	EXPECT(cmp_(min, 1, (intmax_t)min) == -1);
+
+	EXPECT(cmp_(min, 0, (intmax_t)min) == -1);
+	EXPECT(cmp_(umax, min, (intmax_t)min) == 0);
+
+	return 0;
+}
+
+#endif