MPFR_HOT_FUNCTION_ATTR void
mpfr_clear (mpfr_ptr m)
{
(*__gmp_free_func) (MPFR_GET_REAL_PTR (m),
MPFR_MALLOC_SIZE (MPFR_GET_ALLOC_SIZE (m)));
MPFR_MANT (m) = (mp_limb_t *) 0;
}
MPFR_HOT_FUNCTION_ATTR void
mpfr_set_prec (mpfr_ptr x, mpfr_prec_t p)
{
mp_size_t xsize, xoldsize;
mpfr_limb_ptr tmp;
/* first, check if p is correct */
MPFR_ASSERTN (MPFR_PREC_COND (p));
/* Calculate the new number of limbs */
xsize = MPFR_PREC2LIMBS (p);
/* Realloc only if the new size is greater than the old */
xoldsize = MPFR_GET_ALLOC_SIZE (x);
if (MPFR_UNLIKELY (xsize > xoldsize))
{
tmp = (mpfr_limb_ptr) (*__gmp_reallocate_func)
(MPFR_GET_REAL_PTR(x), MPFR_MALLOC_SIZE(xoldsize), MPFR_MALLOC_SIZE(xsize));
MPFR_SET_MANT_PTR(x, tmp);
MPFR_SET_ALLOC_SIZE(x, xsize);
}
MPFR_PREC (x) = p;
MPFR_SET_NAN (x); /* initializes to NaN */
}
