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format.pm
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format.pm
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# Copyright (C) 2001-2003, Parrot Foundation.
=head1 NAME
config/auto/format.pm - Sprintf Formats
=head1 DESCRIPTION
Figures out what formats should be used for C<sprintf()>.
=cut
package auto::format;
use strict;
use warnings;
use base qw(Parrot::Configure::Step);
use Parrot::Configure::Step;
sub _init {
my $self = shift;
my %data;
$data{description} = q{What formats should be used for sprintf};
$data{result} = q{};
return \%data;
}
sub runstep {
my ( $self, $conf ) = @_;
_set_intvalfmt($conf);
_set_floatvalfmt_nvsize($conf);
return 1;
}
sub _set_intvalfmt {
my $conf = shift;
my $ivformat;
my $iv = $conf->data->get(qw(iv));
if ( $iv eq "int" ) {
$ivformat = "%d";
}
elsif ( ( $iv eq "long" ) || ( $iv eq "long int" ) ) {
$ivformat = "%ld";
}
elsif ( ( $iv eq "long long" ) || ( $iv eq "long long int" ) ) {
$ivformat = "%lld";
}
else {
die qq{Configure.pl: Can't find a printf-style format specifier for type '$iv'\n};
}
$conf->data->set( intvalfmt => $ivformat );
}
sub _set_floatvalfmt_nvsize {
my $conf = shift;
my ( $nv, $floatsize, $doublesize, $ldsize ) =
$conf->data->get(qw(nv floatsize doublesize hugefloatvalsize));
my ( $nvformat, $nvsize );
$nvsize = $floatsize;
if ( $nv eq "double" ) {
$nvsize = $doublesize;
$nvformat = "%.15g";
}
elsif ( $nv eq "long double" ) {
# Stay way from long double for now (it may be 64 or 80 bits)
# die "long double not supported at this time, use double.";
$nvsize = $ldsize;
my $spri = $conf->data->get('sPRIgldbl_provisional');
if ( defined $spri ) {
$nvformat = "%.15" . $spri;
$nvformat =~ s/"//g; # Perl 5's Config value has embedded double quotes
}
else {
die qq{Configure.pl: Can't find a printf-style format specifier for type '$nv'\n};
}
}
else {
die qq{Configure.pl: Can't find a printf-style format specifier for type '$nv'\n};
}
$conf->data->set(
floatvalfmt => $nvformat,
nvsize => $nvsize
);
}
1;
# Local Variables:
# mode: cperl
# cperl-indent-level: 4
# fill-column: 100
# End:
# vim: expandtab shiftwidth=4: