Expand description
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 = {
let mut f = MaybeUninit::uninit();
mpfr::init2(f.as_mut_ptr(), 53);
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 2.7182818284590452353602874713526624977572470936999595749669131e0
use core::ffi::c_int;
use core::mem::MaybeUninit;
use gmp_mpfr_sys::mpfr;
use gmp_mpfr_sys::mpfr::rnd_t;
use libc::STDOUT_FILENO;
fn main() {
unsafe {
let mut t = {
let mut t = MaybeUninit::uninit();
mpfr::init2(t.as_mut_ptr(), 200);
t.assume_init()
};
mpfr::set_d(&mut t, 1.0, rnd_t::RNDD);
let mut s = {
let mut s = MaybeUninit::uninit();
mpfr::init2(s.as_mut_ptr(), 200);
s.assume_init()
};
mpfr::set_d(&mut s, 1.0, rnd_t::RNDD);
let mut u = {
let mut u = MaybeUninit::uninit();
mpfr::init2(u.as_mut_ptr(), 200);
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().cast());
libc::fputs(b"Sum is \0".as_ptr().cast(), 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§
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 - acospi⚠
- See:
mpfr_acospi - acosu⚠
- See:
mpfr_acosu - 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 - asinpi⚠
- See:
mpfr_asinpi - asinu⚠
- See:
mpfr_asinu - asprintf⚠
- See:
mpfr_asprintf - atan⚠
- See:
mpfr_atan - atan2⚠
- See:
mpfr_atan2 - atan2pi⚠
- See:
mpfr_atan2pi - atan2u⚠
- See:
mpfr_atan2u - atanh⚠
- See:
mpfr_atanh - atanpi⚠
- See:
mpfr_atanpi - atanu⚠
- See:
mpfr_atanu - 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 - cmpabs_
ui ⚠ - See:
mpfr_cmpabs_ui - compound_
si ⚠ - See:
mpfr_compound_si - 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 - cospi⚠
- See:
mpfr_cospi - cosu⚠
- See:
mpfr_cosu - 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_2si⚠
- See:
mpfr_div_2si - div_2ui⚠
- See:
mpfr_div_2ui - 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 - dot⚠
- See:
mpfr_dot - 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 - exp2m1⚠
- See:
mpfr_exp2m1 - exp10⚠
- See:
mpfr_exp10 - exp10m1⚠
- See:
mpfr_exp10m1 - 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 - fmod_ui⚠
- See:
mpfr_fmod_ui - 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_
pool ⚠ - See:
mpfr_free_pool - 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_
str_ ⚠ndigits - See:
mpfr_get_str_ndigits - 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 - log2⚠
- See:
mpfr_log2 - log1p⚠
- See:
mpfr_log1p - log2p1⚠
- See:
mpfr_log2p1 - log10⚠
- See:
mpfr_log10 - log10p1⚠
- See:
mpfr_log10p1 - log_ui⚠
- See:
mpfr_log_ui - max⚠
- See:
mpfr_max - min⚠
- See:
mpfr_min - min_
prec ⚠ - See:
mpfr_min_prec - modf⚠
- See:
mpfr_modf - mp_
memory_ ⚠cleanup - See:
mpfr_mp_memory_cleanup - mul⚠
- See:
mpfr_mul - mul_
2exp ⚠ - See:
mpfr_mul_2exp - mul_2si⚠
- See:
mpfr_mul_2si - mul_2ui⚠
- See:
mpfr_mul_2ui - 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_sj⚠
- See:
mpfr_pow_sj - pow_ui⚠
- See:
mpfr_pow_ui - pow_uj⚠
- See:
mpfr_pow_uj - pow_z⚠
- See:
mpfr_pow_z - pown⚠
- See:
mpfr_pown - powr⚠
- See:
mpfr_powr - 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_
si ⚠ - See:
mpfr_rootn_si - 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 - sinpi⚠
- See:
mpfr_sinpi - sinu⚠
- See:
mpfr_sinu - snprintf⚠
- See:
mpfr_snprintf - sprintf⚠
- See:
mpfr_sprintf - sqr⚠
- See:
mpfr_sqr - sqrt⚠
- See:
mpfr_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 - tanpi⚠
- See:
mpfr_tanpi - tanu⚠
- See:
mpfr_tanu - total_
order_ ⚠p - See:
mpfr_total_order_p - 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