Common integer representation over variable casting?

Common integer representation over variable casting?

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Common integer representation over variable casting?
Tag : php , By : christiandsg
Date : November 25 2020, 01:01 AM

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Casting an Integer to a Single, preserving bit representation

Tag : vb.net , By : WellBeing
Date : March 29 2020, 07:55 AM
wish helps you Is there a fast way in VB.NET to take a 32-bit int and cast to a 32-bit float while preserving the underlying bit structure? BitConverter will do this, but I'd like to cast it directly without involving byte arrays. , Damn, how could I possibly forget about The C-style Union?
<Runtime.InteropServices.StructLayout(Runtime.InteropServices.LayoutKind.Explicit)> _
Public Structure IntFloatUnion
    <Runtime.InteropServices.FieldOffset(0)> Public i As Integer
    <Runtime.InteropServices.FieldOffset(0)> Public f As Single
End Structure

Sub Main()
    Dim u As IntFloatUnion

    u.i = 42

End Sub
public static class FancyConverter
    public static unsafe float FloatFromBytes(int i)
        return *((float*)(void*)(&i));

Floating point representation can support larger values in comparision to integer representation

Tag : java , By : Vorinowsky
Date : March 29 2020, 07:55 AM
I wish this helpful for you Suppose you assume this convention: the last two digits of your integer denote the power-of-10 of the remainder. Then you can store numbers up to 21474835 * 10^99 in a single integer. (You would also need to program all arithmetic methods to use it a such.)
To use floating point numbers in the same way, you can use the same convention. Since a signed integer stores 9 decimals (10, but the first one can only be 0, 1 or 2), you could say that the decimal period is behind the first decimal. So to store "1234.56" you would use

casting a integer variable to float

Tag : development , By : TomL
Date : March 29 2020, 07:55 AM
hope this fix your issue After spending a few hours reading up on synthesizing loops and trying to translate the to_float with integer arg I had a thought:
library ieee;
library ieee_proposed;
use ieee_proposed.float_pkg.all;
use ieee.numeric_std.all;

entity SM is
end entity;

architecture foo of SM is

-- From float_pkg_c.vhdl line 391/3927 (package float_pkg):

    -- -- to_float (signed)
    -- function to_float (
    --   arg                     : SIGNED;
    --   constant exponent_width : NATURAL    := float_exponent_width;  -- length of FP output exponent
    --   constant fraction_width : NATURAL    := float_fraction_width;  -- length of FP output fraction
    --   constant round_style    : round_type := float_round_style)  -- rounding option
    --   return UNRESOLVED_float is

    variable denum : integer; 
    variable num : integer; 
    variable dividend : float (4 downto -27); 
        denum := 42;
        num := 21;
        dividend := to_float(TO_SIGNED(num,32), 4, 27) / to_float(TO_SIGNED(denum,32), 4, 27);
        assert dividend /= 0.5
        report "dividend = " & to_string(dividend)
        severity NOTE;
    end process;

end architecture;

Turn integer representation of a price to a double representation

Tag : mysql , By : Gianluca Riccardi
Date : March 29 2020, 07:55 AM
should help you out I have a table called products. It stores the name of products and their price. The price is stored as cents in the format of an integer. , How about
SELECT name, price/100 as price FROM products

get the integer representation value of a float type variable in C

Tag : c , By : FarmerDave
Date : March 29 2020, 07:55 AM
With these it helps I have the number 20 (0x14) stored in a 32-bit register. The register is allocated to a C float variable representing the value 2.8e-44. Now I want to get the hexadecimal representation of the float variable back and stored it into an integer variable in order to restore the original meaning of the information. Is there a better way to do that, apart from doing some pointer business? Here is the code: , You can achieve your need with a union:
#include <stdio.h>

int main()
  union { int i; float f; } fi;
  fi.f = 2.802597e-44;
  return 0;
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