mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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Copyright (C) 2012 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "acb.h"
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#ifndef __compar_fn_t
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#if defined(_MSC_VER)
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typedef int(*__compar_fn_t) (const void *, const void *);
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#else
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typedef int(*__compar_fn_t) (__const void *, __const void *);
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#endif
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#endif
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int acb_cmp_pretty(const acb_t a, const acb_t b)
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{
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arb_t t, u, v;
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int res;
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arb_init(t);
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arb_init(u);
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arb_init(v);
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arb_abs(u, acb_imagref(a));
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arb_abs(v, acb_imagref(b));
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arb_sub(t, u, v, MAG_BITS);
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res = 0;
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if (arb_contains_zero(t))
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{
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arb_sub(t, acb_realref(a), acb_realref(b), MAG_BITS);
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res = arb_is_positive(t) ? 1 : -1;
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}
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else
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{
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res = arb_is_positive(t) ? 1 : -1;
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}
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arb_clear(t);
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arb_clear(u);
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arb_clear(v);
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return res;
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}
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void _acb_vec_sort_pretty(acb_ptr vec, slong len)
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{
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qsort(vec, len, sizeof(acb_struct), (__compar_fn_t) acb_cmp_pretty);
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}
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