From 50bb696a6b4d75a097f22274834f67961fa9e440 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Thu, 11 Dec 2025 18:32:27 +0100 Subject: Add signed integers (arithmetics and some testing not implemented yet) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libj2_ji_to_j2i.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libj2_ji_to_j2i.c (limited to 'libj2_ji_to_j2i.c') diff --git a/libj2_ji_to_j2i.c b/libj2_ji_to_j2i.c new file mode 100644 index 0000000..25618ca --- /dev/null +++ b/libj2_ji_to_j2i.c @@ -0,0 +1,54 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" +#ifndef TEST + +extern inline void libj2_ji_to_j2i(intmax_t a, struct libj2_j2i *res); +/* TODO Add man page */ + + +#else + +int +main(void) +{ + struct libj2_j2i value; + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(0, &value); + EXPECT(value.high == 0); + EXPECT(value.low == 0); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(5, &value); + EXPECT(value.high == 0); + EXPECT(value.low == 5); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(10, &value); + EXPECT(value.high == 0); + EXPECT(value.low == 10); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(INTMAX_MAX, &value); + EXPECT(value.high == 0); + EXPECT(value.low == (uintmax_t)INTMAX_MAX); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(-1, &value); + EXPECT(value.high == UINTMAX_MAX); + EXPECT(value.low == UINTMAX_MAX); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(-2, &value); + EXPECT(value.high == UINTMAX_MAX); + EXPECT(value.low == UINTMAX_MAX - 1U); + + value = (struct libj2_j2i){1, 2}; + libj2_ji_to_j2i(INTMAX_MIN, &value); + EXPECT(value.high == UINTMAX_MAX); + EXPECT(value.low == ~(uintmax_t)INTMAX_MAX); + + return 0; +} + +#endif -- cgit v1.2.3-70-g09d2