[−][src]Module gmp_mpfr_sys::mpfr

Function and type bindings for the MPFR library.

Examples

use core::mem::MaybeUninit;
use gmp_mpfr_sys::mpfr;
let one_third = 1.0_f64 / 3.0;
unsafe {
    let mut f = MaybeUninit::uninit();
    mpfr::init2(f.as_mut_ptr(), 53);
    let mut f = f.assume_init();
    let dir = mpfr::set_d(&mut f, one_third, mpfr::rnd_t::RNDN);
    assert_eq!(dir, 0);
    let d = mpfr::get_d(&f, mpfr::rnd_t::RNDN);
    assert_eq!(d, one_third);
    mpfr::clear(&mut f);
}

The following example is a translation of the MPFR sample found on the MPFR website. The program computes a lower bound on 1 + 1/1! + 1/2! + … + 1/100! using 200-bit precision. The program outputs:

Sum is 2.7182818284590452353602874713526624977572470936999595749669131

use core::mem::MaybeUninit;
use gmp_mpfr_sys::mpfr::{self, rnd_t};
use libc::{self, c_char, c_int, STDOUT_FILENO};

fn main() {
    unsafe {
        let mut t = MaybeUninit::uninit();
        mpfr::init2(t.as_mut_ptr(), 200);
        let mut t = t.assume_init();
        mpfr::set_d(&mut t, 1.0, rnd_t::RNDD);

        let mut s = MaybeUninit::uninit();
        mpfr::init2(s.as_mut_ptr(), 200);
        let mut s = s.assume_init();
        mpfr::set_d(&mut s, 1.0, rnd_t::RNDD);

        let mut u = MaybeUninit::uninit();
        mpfr::init2(u.as_mut_ptr(), 200);
        let mut u = u.assume_init();

        for i in 1..=100 {
            mpfr::mul_ui(&mut t, &t, i, rnd_t::RNDU);
            mpfr::set_d(&mut u, 1.0, rnd_t::RNDD);
            mpfr::div(&mut u, &u, &t, rnd_t::RNDD);
            mpfr::add(&mut s, &s, &u, rnd_t::RNDD);
        }

        let stdout = libc::fdopen(STDOUT_FILENO, b"w\0".as_ptr() as *const c_char);
        libc::fputs(b"Sum is \0".as_ptr() as *const c_char, stdout);
        mpfr::out_str(stdout, 10, 0, &s, rnd_t::RNDD);
        libc::fputc(b'\n' as c_int, stdout);
        libc::fclose(stdout);

        mpfr::clear(&mut s);
        mpfr::clear(&mut t);
        mpfr::clear(&mut u);
        mpfr::free_cache();
    }
}

Structs

mpfr_t

See: mpfr_t and Internals

Enums

rnd_t

See: mpfr_rnd_t

Constants

FREE_GLOBAL_CACHE	See: `mpfr_free_cache2`
FREE_LOCAL_CACHE	See: `mpfr_free_cache2`
INF_KIND	See: `mpfr_custom_init_set`
NAN_KIND	See: `mpfr_custom_init_set`
PREC_MAX	See: Nomenclature and Types
PREC_MIN	See: Nomenclature and Types
REGULAR_KIND	See: `mpfr_custom_init_set`
VERSION	See: `MPFR_VERSION`
VERSION_MAJOR	See: `MPFR_VERSION_MAJOR`
VERSION_MINOR	See: `MPFR_VERSION_MINOR`
VERSION_PATCHLEVEL	See: `MPFR_VERSION_PATCHLEVEL`
VERSION_STRING	See: `MPFR_VERSION_STRING`
ZERO_KIND	See: `mpfr_custom_init_set`

Functions

VERSION_NUM	See: `MPFR_VERSION_NUM`
abs ^⚠	See: `mpfr_abs`
acos ^⚠	See: `mpfr_acos`
acosh ^⚠	See: `mpfr_acosh`
add ^⚠	See: `mpfr_add`
add_d ^⚠	See: `mpfr_add_d`
add_q ^⚠	See: `mpfr_add_q`
add_si ^⚠	See: `mpfr_add_si`
add_ui ^⚠	See: `mpfr_add_ui`
add_z ^⚠	See: `mpfr_add_z`
agm ^⚠	See: `mpfr_agm`
ai ^⚠	See: `mpfr_ai`
asin ^⚠	See: `mpfr_asin`
asinh ^⚠	See: `mpfr_asinh`
asprintf ^⚠	See: `mpfr_asprintf`
atan ^⚠	See: `mpfr_atan`
atan2 ^⚠	See: `mpfr_atan2`
atanh ^⚠	See: `mpfr_atanh`
beta ^⚠	See: `mpfr_beta`
buildopt_decimal_p ^⚠	See: `mpfr_buildopt_decimal_p`
buildopt_float128_p ^⚠	See: `mpfr_buildopt_float128_p`
buildopt_gmpinternals_p ^⚠	See: `mpfr_buildopt_gmpinternals_p`
buildopt_sharedcache_p ^⚠	See: `mpfr_buildopt_sharedcache_p`
buildopt_tls_p ^⚠	See: `mpfr_buildopt_tls_p`
buildopt_tune_case ^⚠	See: `mpfr_buildopt_tune_case`
can_round ^⚠	See: `mpfr_can_round`
cbrt ^⚠	See: `mpfr_cbrt`
ceil ^⚠	See: `mpfr_ceil`
check_range ^⚠	See: `mpfr_check_range`
clear ^⚠	See: `mpfr_clear`
clear_divby0 ^⚠	See: `mpfr_clear_divby0`
clear_erangeflag ^⚠	See: `mpfr_clear_erangeflag`
clear_flags ^⚠	See: `mpfr_clear_flags`
clear_inexflag ^⚠	See: `mpfr_clear_inexflag`
clear_nanflag ^⚠	See: `mpfr_clear_nanflag`
clear_overflow ^⚠	See: `mpfr_clear_overflow`
clear_underflow ^⚠	See: `mpfr_clear_underflow`
clears ^⚠	See: `mpfr_clears`
cmp ^⚠	See: `mpfr_cmp`
cmp_d ^⚠	See: `mpfr_cmp_d`
cmp_f ^⚠	See: `mpfr_cmp_f`
cmp_q ^⚠	See: `mpfr_cmp_q`
cmp_si ^⚠	See: `mpfr_cmp_si`
cmp_si_2exp ^⚠	See: `mpfr_cmp_si_2exp`
cmp_ui ^⚠	See: `mpfr_cmp_ui`
cmp_ui_2exp ^⚠	See: `mpfr_cmp_ui_2exp`
cmp_z ^⚠	See: `mpfr_cmp_z`
cmpabs ^⚠	See: `mpfr_cmpabs`
const_catalan ^⚠	See: `mpfr_const_catalan`
const_euler ^⚠	See: `mpfr_const_euler`
const_log2 ^⚠	See: `mpfr_const_log2`
const_pi ^⚠	See: `mpfr_const_pi`
copysign ^⚠	See: `mpfr_copysign`
cos ^⚠	See: `mpfr_cos`
cosh ^⚠	See: `mpfr_cosh`
cot ^⚠	See: `mpfr_cot`
coth ^⚠	See: `mpfr_coth`
csc ^⚠	See: `mpfr_csc`
csch ^⚠	See: `mpfr_csch`
custom_get_exp ^⚠	See: `mpfr_custom_get_exp`
custom_get_kind ^⚠	See: `mpfr_custom_get_kind`
custom_get_significand ^⚠	See: `mpfr_custom_get_significand`
custom_get_size ^⚠	See: `mpfr_custom_get_size`
custom_init ^⚠	See: `mpfr_custom_init`
custom_init_set ^⚠	See: `mpfr_custom_init_set`
custom_move ^⚠	See: `mpfr_custom_move`
d_div ^⚠	See: `mpfr_d_div`
d_sub ^⚠	See: `mpfr_d_sub`
digamma ^⚠	See: `mpfr_digamma`
dim ^⚠	See: `mpfr_dim`
div ^⚠	See: `mpfr_div`
div_2exp ^⚠	See: `mpfr_div_2exp`
div_2ui ^⚠	See: `mpfr_div_2ui`
div_2si ^⚠	See: `mpfr_div_2si`
div_d ^⚠	See: `mpfr_div_d`
div_q ^⚠	See: `mpfr_div_q`
div_si ^⚠	See: `mpfr_div_si`
div_ui ^⚠	See: `mpfr_div_ui`
div_z ^⚠	See: `mpfr_div_z`
divby0_p ^⚠	See: `mpfr_divby0_p`
dump ^⚠	See: `mpfr_dump`
eint ^⚠	See: `mpfr_eint`
eq ^⚠	See: `mpfr_eq`
equal_p ^⚠	See: `mpfr_equal_p`
erandom ^⚠	See: `mpfr_erandom`
erangeflag_p ^⚠	See: `mpfr_erangeflag_p`
erf ^⚠	See: `mpfr_erf`
erfc ^⚠	See: `mpfr_erfc`
exp ^⚠	See: `mpfr_exp`
exp2 ^⚠	See: `mpfr_exp2`
exp10 ^⚠	See: `mpfr_exp10`
expm1 ^⚠	See: `mpfr_expm1`
fac_ui ^⚠	See: `mpfr_fac_ui`
fits_intmax_p ^⚠	See: `mpfr_fits_intmax_p`
fits_sint_p ^⚠	See: `mpfr_fits_sint_p`
fits_slong_p ^⚠	See: `mpfr_fits_slong_p`
fits_sshort_p ^⚠	See: `mpfr_fits_sshort_p`
fits_uint_p ^⚠	See: `mpfr_fits_uint_p`
fits_uintmax_p ^⚠	See: `mpfr_fits_uintmax_p`
fits_ulong_p ^⚠	See: `mpfr_fits_ulong_p`
fits_ushort_p ^⚠	See: `mpfr_fits_ushort_p`
flags_clear ^⚠	See: `mpfr_flags_clear`
flags_restore ^⚠	See: `mpfr_flags_restore`
flags_save ^⚠	See: `mpfr_flags_save`
flags_set ^⚠	See: `mpfr_flags_set`
flags_test ^⚠	See: `mpfr_flags_test`
floor ^⚠	See: `mpfr_floor`
fma ^⚠	See: `mpfr_fma`
fmma ^⚠	See: `mpfr_fmma`
fmms ^⚠	See: `mpfr_fmms`
fmod ^⚠	See: `mpfr_fmod`
fmodquo ^⚠	See: `mpfr_fmodquo`
fms ^⚠	See: `mpfr_fms`
fpif_export ^⚠	See: `mpfr_fpif_export`
fpif_import ^⚠	See: `mpfr_fpif_import`
fprintf ^⚠	See: `mpfr_fprintf`
frac ^⚠	See: `mpfr_frac`
free_cache ^⚠	See: `mpfr_free_cache`
free_cache2 ^⚠	See: `mpfr_free_cache2`
free_str ^⚠	See: `mpfr_free_str`
frexp ^⚠	See: `mpfr_frexp`
gamma ^⚠	See: `mpfr_gamma`
gamma_inc ^⚠	See: `mpfr_gamma_inc`
get_d ^⚠	See: `mpfr_get_d`
get_d_2exp ^⚠	See: `mpfr_get_d_2exp`
get_default_prec ^⚠	See: `mpfr_get_default_prec`
get_default_rounding_mode ^⚠	See: `mpfr_get_default_rounding_mode`
get_emax ^⚠	See: `mpfr_get_emax`
get_emax_max ^⚠	See: `mpfr_get_emax_max`
get_emax_min ^⚠	See: `mpfr_get_emax_min`
get_emin ^⚠	See: `mpfr_get_emin`
get_emin_max ^⚠	See: `mpfr_get_emin_max`
get_emin_min ^⚠	See: `mpfr_get_emin_min`
get_exp ^⚠	See: `mpfr_get_exp`
get_f ^⚠	See: `mpfr_get_f`
get_flt ^⚠	See: `mpfr_get_flt`
get_patches ^⚠	See: `mpfr_get_patches`
get_prec ^⚠	See: `mpfr_get_prec`
get_q ^⚠	See: `mpfr_get_q`
get_si ^⚠	See: `mpfr_get_si`
get_sj ^⚠	See: `mpfr_get_sj`
get_str ^⚠	See: `mpfr_get_str`
get_ui ^⚠	See: `mpfr_get_ui`
get_uj ^⚠	See: `mpfr_get_uj`
get_version ^⚠	See: `mpfr_get_version`
get_z ^⚠	See: `mpfr_get_z`
get_z_2exp ^⚠	See: `mpfr_get_z_2exp`
grandom ^⚠	Deprecated See: `mpfr_grandom`
greater_p ^⚠	See: `mpfr_greater_p`
greaterequal_p ^⚠	See: `mpfr_greaterequal_p`
hypot ^⚠	See: `mpfr_hypot`
inexflag_p ^⚠	See: `mpfr_inexflag_p`
inf_p ^⚠	See: `mpfr_inf_p`
init ^⚠	See: `mpfr_init`
init2 ^⚠	See: `mpfr_init2`
init_set ^⚠	See: `mpfr_init_set`
init_set_d ^⚠	See: `mpfr_init_set_d`
init_set_f ^⚠	See: `mpfr_init_set_f`
init_set_q ^⚠	See: `mpfr_init_set_q`
init_set_si ^⚠	See: `mpfr_init_set_si`
init_set_str ^⚠	See: `mpfr_init_set_str`
init_set_ui ^⚠	See: `mpfr_init_set_ui`
init_set_z ^⚠	See: `mpfr_init_set_z`
inits ^⚠	See: `mpfr_inits`
inits2 ^⚠	See: `mpfr_inits2`
inp_str ^⚠	See: `mpfr_inp_str`
integer_p ^⚠	See: `mpfr_integer_p`
j0 ^⚠	See: `mpfr_j0`
j1 ^⚠	See: `mpfr_j1`
jn ^⚠	See: `mpfr_jn`
less_p ^⚠	See: `mpfr_less_p`
lessequal_p ^⚠	See: `mpfr_lessequal_p`
lessgreater_p ^⚠	See: `mpfr_lessgreater_p`
lgamma ^⚠	See: `mpfr_lgamma`
li2 ^⚠	See: `mpfr_li2`
lngamma ^⚠	See: `mpfr_lngamma`
log ^⚠	See: `mpfr_log`
log1p ^⚠	See: `mpfr_log1p`
log2 ^⚠	See: `mpfr_log2`
log10 ^⚠	See: `mpfr_log10`
log_ui ^⚠	See: `mpfr_log_ui`
max ^⚠	See: `mpfr_max`
min ^⚠	See: `mpfr_min`
min_prec ^⚠	See: `mpfr_min_prec`
modf ^⚠	See: `mpfr_modf`
mul ^⚠	See: `mpfr_mul`
mul_2exp ^⚠	See: `mpfr_mul_2exp`
mul_2ui ^⚠	See: `mpfr_mul_2ui`
mul_2si ^⚠	See: `mpfr_mul_2si`
mul_d ^⚠	See: `mpfr_mul_d`
mul_q ^⚠	See: `mpfr_mul_q`
mul_si ^⚠	See: `mpfr_mul_si`
mul_ui ^⚠	See: `mpfr_mul_ui`
mul_z ^⚠	See: `mpfr_mul_z`
nan_p ^⚠	See: `mpfr_nan_p`
nanflag_p ^⚠	See: `mpfr_nanflag_p`
neg ^⚠	See: `mpfr_neg`
nextabove ^⚠	See: `mpfr_nextabove`
nextbelow ^⚠	See: `mpfr_nextbelow`
nexttoward ^⚠	See: `mpfr_nexttoward`
nrandom ^⚠	See: `mpfr_nrandom`
number_p ^⚠	See: `mpfr_number_p`
out_str ^⚠	See: `mpfr_out_str`
overflow_p ^⚠	See: `mpfr_overflow_p`
pow ^⚠	See: `mpfr_pow`
pow_si ^⚠	See: `mpfr_pow_si`
pow_ui ^⚠	See: `mpfr_pow_ui`
pow_z ^⚠	See: `mpfr_pow_z`
prec_round ^⚠	See: `mpfr_prec_round`
print_rnd_mode ^⚠	See: `mpfr_print_rnd_mode`
printf ^⚠	See: `mpfr_printf`
rec_sqrt ^⚠	See: `mpfr_rec_sqrt`
regular_p ^⚠	See: `mpfr_regular_p`
reldiff ^⚠	See: `mpfr_reldiff`
remainder ^⚠	See: `mpfr_remainder`
remquo ^⚠	See: `mpfr_remquo`
rint ^⚠	See: `mpfr_rint`
rint_ceil ^⚠	See: `mpfr_rint_ceil`
rint_floor ^⚠	See: `mpfr_rint_floor`
rint_round ^⚠	See: `mpfr_rint_round`
rint_roundeven ^⚠	See: `mpfr_rint_roundeven`
rint_trunc ^⚠	See: `mpfr_rint_trunc`
root ^⚠	Deprecated See: `mpfr_root`
rootn_ui ^⚠	See: `mpfr_rootn_ui`
round ^⚠	See: `mpfr_round`
roundeven ^⚠	See: `mpfr_roundeven`
sec ^⚠	See: `mpfr_sec`
sech ^⚠	See: `mpfr_sech`
set ^⚠	See: `mpfr_set`
set_d ^⚠	See: `mpfr_set_d`
set_default_prec ^⚠	See: `mpfr_set_default_prec`
set_default_rounding_mode ^⚠	See: `mpfr_set_default_rounding_mode`
set_divby0 ^⚠	See: `mpfr_set_divby0`
set_emax ^⚠	See: `mpfr_set_emax`
set_emin ^⚠	See: `mpfr_set_emin`
set_erangeflag ^⚠	See: `mpfr_set_erangeflag`
set_exp ^⚠	See: `mpfr_set_exp`
set_f ^⚠	See: `mpfr_set_f`
set_flt ^⚠	See: `mpfr_set_flt`
set_inexflag ^⚠	See: `mpfr_set_inexflag`
set_inf ^⚠	See: `mpfr_set_inf`
set_nan ^⚠	See: `mpfr_set_nan`
set_nanflag ^⚠	See: `mpfr_set_nanflag`
set_overflow ^⚠	See: `mpfr_set_overflow`
set_prec ^⚠	See: `mpfr_set_prec`
set_prec_raw ^⚠	See: `mpfr_set_prec_raw`
set_q ^⚠	See: `mpfr_set_q`
set_si ^⚠	See: `mpfr_set_si`
set_si_2exp ^⚠	See: `mpfr_set_si_2exp`
set_sj ^⚠	See: `mpfr_set_sj`
set_sj_2exp ^⚠	See: `mpfr_set_sj_2exp`
set_str ^⚠	See: `mpfr_set_str`
set_ui ^⚠	See: `mpfr_set_ui`
set_ui_2exp ^⚠	See: `mpfr_set_ui_2exp`
set_uj ^⚠	See: `mpfr_set_uj`
set_uj_2exp ^⚠	See: `mpfr_set_uj_2exp`
set_underflow ^⚠	See: `mpfr_set_underflow`
set_z ^⚠	See: `mpfr_set_z`
set_z_2exp ^⚠	See: `mpfr_set_z_2exp`
set_zero ^⚠	See: `mpfr_set_zero`
setsign ^⚠	See: `mpfr_setsign`
sgn ^⚠	See: `mpfr_sgn`
si_div ^⚠	See: `mpfr_si_div`
si_sub ^⚠	See: `mpfr_si_sub`
signbit ^⚠	See: `mpfr_signbit`
sin ^⚠	See: `mpfr_sin`
sin_cos ^⚠	See: `mpfr_sin_cos`
sinh ^⚠	See: `mpfr_sinh`
sinh_cosh ^⚠	See: `mpfr_sinh_cosh`
snprintf ^⚠	See: `mpfr_snprintf`
sprintf ^⚠	See: `mpfr_sprintf`
sqr ^⚠	See: `mpfr_sqr`
sqrt ^⚠	See: `mpfr_rec_sqrt`
sqrt_ui ^⚠	See: `mpfr_sqrt_ui`
strtofr ^⚠	See: `mpfr_strtofr`
sub ^⚠	See: `mpfr_sub`
sub_d ^⚠	See: `mpfr_sub_d`
sub_q ^⚠	See: `mpfr_sub_q`
sub_si ^⚠	See: `mpfr_sub_si`
sub_ui ^⚠	See: `mpfr_sub_ui`
sub_z ^⚠	See: `mpfr_sub_z`
subnormalize ^⚠	See: `mpfr_subnormalize`
sum ^⚠	See: `mpfr_sum`
swap ^⚠	See: `mpfr_swap`
tan ^⚠	See: `mpfr_tan`
tanh ^⚠	See: `mpfr_tanh`
trunc ^⚠	See: `mpfr_trunc`
ui_div ^⚠	See: `mpfr_ui_div`
ui_pow ^⚠	See: `mpfr_ui_pow`
ui_pow_ui ^⚠	See: `mpfr_ui_pow_ui`
ui_sub ^⚠	See: `mpfr_ui_sub`
underflow_p ^⚠	See: `mpfr_underflow_p`
unordered_p ^⚠	See: `mpfr_unordered_p`
urandom ^⚠	See: `mpfr_urandom`
urandomb ^⚠	See: `mpfr_urandomb`
y0 ^⚠	See: `mpfr_y0`
y1 ^⚠	See: `mpfr_y1`
yn ^⚠	See: `mpfr_yn`
z_sub ^⚠	See: `mpfr_z_sub`
zero_p ^⚠	See: `mpfr_zero_p`
zeta ^⚠	See: `mpfr_zeta`
zeta_ui ^⚠	See: `mpfr_zeta_ui`

Type Definitions

exp_t	See: Exception Related Functions
flags_t	See: `mpfr_flags_t`
prec_t	See: `mpfr_prec_t`