File perl-Math-Ryu.spec of Package perl-Math-Ryu

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File perl-Math-Ryu.spec of Package perl-Math-Ryu

#
# spec file for package perl-Math-Ryu
#
# Copyright (c) 2024 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.

# Please submit bugfixes or comments via https://bugs.opensuse.org/
#

%define cpan_name Math-Ryu
Name:           perl-Math-Ryu
Version:        1.04
Release:        0
License:        Artistic-1.0 OR GPL-1.0-or-later
Summary:        Perl interface to Ryu (sane NV-to-string conversion)
URL:            https://metacpan.org/release/%{cpan_name}
Source0:        https://cpan.metacpan.org/authors/id/S/SI/SISYPHUS/%{cpan_name}-%{version}.tar.gz
BuildRequires:  perl
BuildRequires:  perl-macros
BuildRequires:  perl(Test::More) >= 0.88
Requires:       perl(Test::More) >= 0.88
%{perl_requires}

%description
   Using functionality provided by the Ryu library, we convert an NV to
   a decimal string, such that no information is lost, yet keeping the
   string as short as possible.
   Stringification of NVs provided by perl's print() fuction does not
   always adhere to this principle - that is, the condition
   ( "$nv" == $nv ) is not always true.
   For example:
    $nv = 1.4 / 10; # "$nv" != $nv

We can address this by using (s)printf. For example, on a perl whose
   $Config{nvtype} is 'double', we could do sprintf("%.17g", $nv)
   to provide the stringification. Then we will find that, except for
   NaN, the condition ( sprintf("%.17g", $nv) == $nv ) is always true.
   But this presents another problem in that "%.17g" formatting will
   sometimes provide more significant decimal digits than are needed.
   For example:
    printf("%.17g", 0.1); # prints '0.10000000000000001', even though
                          # the condition ("0.1" == 0.1) is also true.

This module provides the nv2s() function which returns a decimal
   string representation of its (NV) argumennt. Unless $nv is NaN:
    1) the condition ( nv2s($nv) == $nv ) is always true;
      and
    2) the string returned by nv2s($nv) will contain the fewest number of
       siginificant decimal digits needed for that first condition to hold.

The aim is that the formatting of the string returned by nv2s() will
   be the same as provided by python3's print() function.
   (Please report any variances - especially substantive ones.)

%prep
%autosetup  -n %{cpan_name}-%{version}

find . -type f ! -path "*/t/*" ! -name "*.pl" ! -path "*/bin/*" ! -path "*/script/*" ! -path "*/scripts/*" ! -name "configure" -print0 | xargs -0 chmod 644

%build
perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="%{optflags}"
%make_build

%check
make test

%install
%perl_make_install
%perl_process_packlist
%perl_gen_filelist

%files -f %{name}.files
%doc Apache_License.txt Changes README

%changelog

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