bitfloating (Core Functions)


Import

#include <archr/core/bitfloating.h>
#include <archr/core/bitfloating.hpp>
import archr.core
atomsLoads('archr')

Synopsis

 float archr_core_bitfloating_1f32(const float i1);
(1)
 double archr_core_bitfloating_1f64(const double i1);
(2)
 float archr_core_bitfloating_1i8(const int8_t i1);
(3)
 float archr_core_bitfloating_1i16(const int16_t i1);
(4)
 float archr_core_bitfloating_1i32(const int32_t i1);
(5)
 double archr_core_bitfloating_1i64(const int64_t i1);
(6)
 float archr_core_bitfloating_1u8(const uint8_t i1);
(7)
 float archr_core_bitfloating_1u16(const uint16_t i1);
(8)
 float archr_core_bitfloating_1u32(const uint32_t i1);
(9)
 double archr_core_bitfloating_1u64(const uint64_t i1);
(10)
 void archr_core_bitfloating_f32(float *o0, const float *i1, size_t sz);
(11)
 void archr_core_bitfloating_f64(double *o0, const double *i1, size_t sz);
(12)
 void archr_core_bitfloating_i32(float *o0, const int32_t *i1, size_t sz);
(13)
 void archr_core_bitfloating_i64(double *o0, const int64_t *i1, size_t sz);
(14)
 void archr_core_bitfloating_u32(float *o0, const uint32_t *i1, size_t sz);
(15)
 void archr_core_bitfloating_u64(double *o0, const uint64_t *i1, size_t sz);
(16)
 float bitfloating(const float i1);
(1)
 double bitfloating(const double i1);
(2)
 float bitfloating(const int8_t i1);
(3)
 float bitfloating(const int16_t i1);
(4)
 float bitfloating(const int32_t i1);
(5)
 double bitfloating(const int64_t i1);
(6)
 float bitfloating(const uint8_t i1);
(7)
 float bitfloating(const uint16_t i1);
(8)
 float bitfloating(const uint32_t i1);
(9)
 double bitfloating(const uint64_t i1);
(10)
 void bitfloating(const float *i1, size_t sz, float *o0);
(11)
 void bitfloating(const double *i1, size_t sz, double *o0);
(12)
 void bitfloating(const int32_t *i1, size_t sz, float *o0);
(13)
 void bitfloating(const int64_t *i1, size_t sz, double *o0);
(14)
 void bitfloating(const uint32_t *i1, size_t sz, float *o0);
(15)
 void bitfloating(const uint64_t *i1, size_t sz, double *o0);
(16)
subroutine archr_core_bitfloating_1f32(real(4) :: r, real(4), parameter :: i1)
(1)
subroutine archr_core_bitfloating_1f64(real(8) :: r, real(8), parameter :: i1)
(2)
subroutine archr_core_bitfloating_1i8(real(4) :: r, integer(1), parameter :: i1)
(3)
subroutine archr_core_bitfloating_1i16(real(4) :: r, integer(2), parameter :: i1)
(4)
subroutine archr_core_bitfloating_1i32(real(4) :: r, integer(4), parameter :: i1)
(5)
subroutine archr_core_bitfloating_1i64(real(8) :: r, integer(8), parameter :: i1)
(6)
subroutine archr_core_bitfloating_1u8(real(4) :: r, integer(1), parameter :: i1)
(7)
subroutine archr_core_bitfloating_1u16(real(4) :: r, integer(2), parameter :: i1)
(8)
subroutine archr_core_bitfloating_1u32(real(4) :: r, integer(4), parameter :: i1)
(9)
subroutine archr_core_bitfloating_1u64(real(8) :: r, integer(8), parameter :: i1)
(10)
subroutine archr_core_bitfloating_f32(real(4), dimension(*), parameter :: i1, integer(4) :: sz, real(4), dimension(*) :: o0)
(11)
subroutine archr_core_bitfloating_i32(integer(4), dimension(*), parameter :: i1, integer(4) :: sz, real(4), dimension(*) :: o0)
(12)
subroutine archr_core_bitfloating_u32(integer(4), dimension(*), parameter :: i1, integer(4) :: sz, real(4), dimension(*) :: o0)
(13)
def bitfloating(i1):
    return o0
(1)
function o0 = archr_core_bitfloating(i1)
(1)

Description

Computes the bitfloating:

Parameters

i1_first, i1_last

The range of input elements

o0

The beginning of the destination range, may be equal to i1

i1

The scalar/contiguous data input element

Example


#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <archr/core/bitfloating.h>

double rand_in(double min, double max) {
  return min + ((double)(max - min) * ((double)rand() / RAND_MAX));
}

int main() {
  time_t t;
  size_t i;
  size_t sz = 10;
  int32_t* i1 = (int32_t*)malloc(sz * sizeof(int32_t));
  float* o1 = (float*)malloc(sz * sizeof(float));

  srand((unsigned int)time(&t));
  for (i = 0; i < sz; ++i) {
    i1[i] = (int32_t)rand_in((int32_t)-10, (int32_t)10);
  }
  archr_core_bitfloating_i32(o1, i1, sz);
  for (i = 0; i < sz; ++i) {
    printf("%4lu: bitfloating(%d) = %f\n", i, i1[i], (double)o1[i]);
  }
}

Possible Output

   0: bitfloating(9) = 0.000000
   1: bitfloating(1) = 0.000000
   2: bitfloating(-3) = -0.000000
   3: bitfloating(-7) = -0.000000
   4: bitfloating(-5) = -0.000000
   5: bitfloating(-8) = -0.000000
   6: bitfloating(4) = 0.000000
   7: bitfloating(9) = 0.000000
   8: bitfloating(5) = 0.000000
   9: bitfloating(6) = 0.000000

#include <ctime>
#include <cstdio>
#include <cstdlib>
#include <cstdint>
#include <cstddef>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <iostream>
#include <archr/core/bitfloating.hpp>

double rand_in(double min, double max) {
  return min + (double(max - min) * (double(std::rand()) / RAND_MAX));
}

int main() {
  std::size_t i;
  std::size_t sz = 10;
  std::vector<std::int32_t> i1(sz);
  std::vector<float> o1(sz);

  std::srand(std::time(0));
  std::generate(i1.begin(), i1.end(), []() { return rand_in(std::int32_t(-10), std::int32_t(10)); });
  archr::core::bitfloating(i1.data(), sz, o1.data());
  for (i = 0; i < sz; ++i) {
    std::cout << std::setw(4) << i << ": " << "bitfloating" << "(" << i1[i] << ")" << " = " << o1[i] << std::endl;
  }
}

Possible Output

   0: bitfloating(-7) = -9.80909e-45
   1: bitfloating(-6) = -8.40779e-45
   2: bitfloating(-9) = -1.26117e-44
   3: bitfloating(5) = 7.00649e-45
   4: bitfloating(6) = 8.40779e-45
   5: bitfloating(7) = 9.80909e-45
   6: bitfloating(-2) = -2.8026e-45
   7: bitfloating(-6) = -8.40779e-45
   8: bitfloating(8) = 1.12104e-44
   9: bitfloating(-5) = -7.00649e-45

program main
  integer(4), parameter  :: sz = 10
  real(4), dimension(sz) :: o0
  integer(4), dimension(sz) :: i0
  real(8)                :: r0, r1
  real(8)                :: min0, max0
  real(8)                :: min1, max1
  real(8)                :: min2, max2
  ! Init:
    min0 = -10
    max0 = 10
  do i=1,sz
    r0 = random_in(min0, max0)
    i0(i) = int(r0)
  end do
  ! Example:
  call archr_core_bitfloating_i32(o0, i0, size(i0))
  ! Output:
  do i=1,sz
    print *, i, ": ", o0(i)
  end do
contains
  ! Generate a random number within a range
  function random_in(mn, mx) result(r)
    real(8) :: r
    real(8), intent(in) :: mn, mx
    r = mn + (rand() * (mx - mn))
  end function random_in
end program

Possible Output

           1 :   -1.26116862E-44
           2 :   -9.80908925E-45
           3 :    7.00649232E-45
           4 :    0.00000000    
           5 :    0.00000000    
           6 :   -7.00649232E-45
           7 :   -1.26116862E-44
           8 :    4.20389539E-45
           9 :    4.20389539E-45
          10 :    1.12103877E-44