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#66: prec command says 'out of range', help shows precision range

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Louis Rubet 2017-05-25 21:36:15 +02:00
parent e2a5102ef8
commit e3dc6db25e
1 changed files with 14 additions and 3 deletions
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17
src/rpn-general.hpp
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@ -50,7 +50,13 @@ void help()
printf(" with %d digits\n", number::s_current_precision);
// calc precision and rounding mode
printf("Current floating point precision is %d bits\n", (int)floating_t::s_mpfr_prec);
// MPFR_PREC_MAX mpfr_prec_t depends on _MPFR_PREC_FORMAT macro (see mpfr.h)
// this could not exceed 63 bits max (0x7FFFFFFFFFFFFFFF)
int64_t prec_min = (int64_t)MPFR_PREC_MIN;
int64_t prec_max = (int64_t)MPFR_PREC_MAX;
printf("Current floating point precision is %d bits (min=%ld bits, max=0x%lx bits)\n", (int)floating_t::s_mpfr_prec, prec_min, prec_max);
printf("Current rounding mode is '%s'\n", floating_t::s_mpfr_rnd_str[floating_t::s_mpfr_rnd]);
printf("\n\n");
}
@ -148,9 +154,14 @@ void precision()
MIN_ARGUMENTS(1);
ARG_MUST_BE_OF_TYPE(0, cmd_number);
// MPFR_PREC_MAX mpfr_prec_t depends on _MPFR_PREC_FORMAT macro (see mpfr.h)
// this could not exceed 63 bits max (0x7FFFFFFFFFFFFFFF)
int64_t prec_min = (int64_t)MPFR_PREC_MIN;
int64_t prec_max = (int64_t)MPFR_PREC_MAX;
//set MPFR float precision
long prec = mpfr_get_si(((number*)_stack->pop_back())->_value.mpfr, floating_t::s_mpfr_rnd);
if (prec >= 0)
int64_t prec = mpfr_get_si(((number*)_stack->pop_back())->_value.mpfr, floating_t::s_mpfr_rnd);
if (prec >= prec_min && prec <= prec_max)
{
floating_t::s_mpfr_prec = (mpfr_prec_t)prec;
floating_t::s_mpfr_prec_bytes = mpfr_custom_get_size(prec);