Blame mpq/init.c

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/* mpq_init -- Make a new rational number with value 0/1.
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Copyright 1991, 1994, 1995, 2000-2002 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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  * the GNU Lesser General Public License as published by the Free
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    Software Foundation; either version 3 of the License, or (at your
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    option) any later version.
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or
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  * the GNU General Public License as published by the Free Software
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    Foundation; either version 2 of the License, or (at your option) any
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    later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library.  If not,
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see https://www.gnu.org/licenses/.  */
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#include "gmp.h"
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#include "gmp-impl.h"
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void
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mpq_init (mpq_t x)
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{
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  ALLOC(NUM(x)) = 1;
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  PTR(NUM(x)) = __GMP_ALLOCATE_FUNC_LIMBS (1);
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  SIZ(NUM(x)) = 0;
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  ALLOC(DEN(x)) = 1;
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  PTR(DEN(x)) = __GMP_ALLOCATE_FUNC_LIMBS (1);
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  PTR(DEN(x))[0] = 1;
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  SIZ(DEN(x)) = 1;
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#ifdef __CHECKER__
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  /* let the low limb look initialized, for the benefit of mpz_get_ui etc */
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  PTR(NUM(x))[0] = 0;
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#endif
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}