mirror of
https://github.com/vale981/arb
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47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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Copyright (C) 2014 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 "mag.h"
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void
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mag_randtest_special(mag_t x, flint_rand_t state, slong expbits)
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{
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switch (n_randint(state, 32))
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{
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case 0:
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mag_zero(x);
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break;
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case 1:
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mag_inf(x);
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break;
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case 2:
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MAG_MAN(x) = (LIMB_ONE << MAG_BITS) - 1;
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fmpz_randtest(MAG_EXPREF(x), state, expbits);
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break;
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case 3:
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MAG_MAN(x) = LIMB_ONE << (MAG_BITS - 1);
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fmpz_randtest(MAG_EXPREF(x), state, expbits);
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break;
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default:
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MAG_MAN(x) = (n_randtest(state) >> (FLINT_BITS - MAG_BITS));
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MAG_MAN(x) |= (LIMB_ONE << (MAG_BITS - 1));
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fmpz_randtest(MAG_EXPREF(x), state, expbits);
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}
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}
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void
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mag_randtest(mag_t x, flint_rand_t state, slong expbits)
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{
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mag_randtest_special(x, state, expbits);
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if (mag_is_inf(x))
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mag_zero(x);
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}
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