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_j2u_to_j2i.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 libj2_j2u_to_j2i.c (limited to 'libj2_j2u_to_j2i.c') diff --git a/libj2_j2u_to_j2i.c b/libj2_j2u_to_j2i.c new file mode 100644 index 0000000..041c79c --- /dev/null +++ b/libj2_j2u_to_j2i.c @@ -0,0 +1,77 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" +#ifndef TEST + +extern inline void libj2_j2u_to_j2i(const struct libj2_j2u *a, struct libj2_j2i *res); +/* TODO Add man page */ + + +#else + +int +main(void) +{ + struct libj2_j2u u; + struct libj2_j2i v; + uintmax_t a, b, i; + + for (i = 0; i < 10U; i++) { + v = (struct libj2_j2i){111, 222}; + u.high = a = UINTMAX_MAX - i; + u.low = b = i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + + v = (struct libj2_j2i){111, 222}; + u.high = a = i; + u.low = b = UINTMAX_MAX - i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + + v = (struct libj2_j2i){111, 222}; + u.high = a = (uintmax_t)INTMAX_MAX + i; + u.low = b = i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + + v = (struct libj2_j2i){111, 222}; + u.high = a = (uintmax_t)INTMAX_MIN + i; + u.low = b = i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + + v = (struct libj2_j2i){111, 222}; + u.high = a = (uintmax_t)INTMAX_MAX - i; + u.low = b = i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + + v = (struct libj2_j2i){111, 222}; + u.high = a = (uintmax_t)INTMAX_MIN - i; + u.low = b = i; + libj2_j2u_to_j2i(&u, &v); + EXPECT(v.high == a); + EXPECT(v.low == b); + EXPECT(u.high == a); + EXPECT(u.low == b); + } + + return 0; +} + +#endif -- cgit v1.2.3-70-g09d2