From cb4b8137902b7c89872f8face7b47704f932b807 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Mon, 29 Jan 2024 07:32:29 +0100 Subject: Add to*, *diff, *abs, *uabs, and random_{bits,float,signed,unsigned} MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- random_unsigned.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 random_unsigned.c (limited to 'random_unsigned.c') diff --git a/random_unsigned.c b/random_unsigned.c new file mode 100644 index 0000000..f39392d --- /dev/null +++ b/random_unsigned.c @@ -0,0 +1,40 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" +#ifndef TEST + + +uintmax_t +libsimple_random_unsigned(uintmax_t (*rng)(size_t bits, void *user), void *user, uintmax_t min, uintmax_t max) /* TODO add test */ +{ + uintmax_t range, offset, t, r; + size_t bits = 0; + + if (min < max) { + range = max - min; + offset = min; + } else { + range = min - max; + offset = max; + } + + for (t = range; t; t >>= 1) + bits += 1; + + do { + r = (*rng)(bits, user); + } while (r > range); + + return r + offset; +} + + +#else +#include "test.h" + +int +main(void) +{ + return 0; +} + +#endif -- cgit v1.2.3-70-g09d2