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C Library Functions  - anyscalar_to_real (3)

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NAME

anyscalar_to_real(3f) - [M_anything] convert integer or real parameter of any kind to real (LICENSE:MIT)

CONTENTS

Synopsis
Description
Options
Results
Examples
Author
License

SYNOPSIS

pure elemental function anyscalar_to_real(valuein) result(r_out)

    class(*),intent(in)  :: valuein
    real                 :: r_out

DESCRIPTION

This function uses polymorphism to allow input arguments of different types. It is used to create other procedures that can take many scalar arguments as input options.

OPTIONS

VALUEIN
	input argument of a procedure to convert to type REAL. May be of KIND kind=int8, kind=int16, kind=int32, kind=int64, kind=real32, kind=real64, or kind=real128.

RESULTS

R_OUT	The value of VALUIN converted to real (assuming it is actually in the range of type REAL).

EXAMPLES

Sample program

    program demo_anyscalar_to_real
    use, intrinsic :: iso_fortran_env, only : int8, int16, int32, int64
    use, intrinsic :: iso_fortran_env, only : real32, real64, real128
    implicit none
       ! call same function with many scalar input types
       write(*,*)squarei(2_int8)
       write(*,*)squarei(2_int16)
       write(*,*)squarei(2_int32)
       write(*,*)squarei(2_int64)
       write(*,*)squarei(2.0_real32)
       write(*,*)squarei(2.0_real64)
       write(*,*)squarei(2.0_real128)
    contains

    function squarei(invalue) result (dvalue)
    use M_anything, only : anyscalar_to_real
    class(*),intent(in)  :: invalue
    real                 :: invalue_local
    real                 :: dvalue
       invalue_local=anyscalar_to_real(invalue)
       dvalue=invalue_local*invalue_local
    end function squarei

    end program demo_anyscalar_to_real

AUTHOR

John S. Urban

LICENSE

    MIT

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Nemo Release 3.1

anyscalar_to_real (3)

February 23, 2025

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