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#!/usr/bin/env perl
# Generate a .c file showing printf and mpfr_printf output with:
# * a missing precision field;
# * a precision field with just a period (".");
# * a precision field with an explicit precision 0 (".0").
use strict;
use warnings;
my @fct = qw/printf mpfr_printf/;
my @cm = qw/C M/;
my @lm = ('', 'R', '', 'M', 'P');
my @v = qw/d x 0 m p/;
my %n = (d => 6, e => 18, f => 18);
my $p = ".0";
# Add tests_start_mpfr / tests_end_mpfr calls when this script is run
# from the MPFR tests directory.
my ($header,$start,$end) = -e "mpfr-test.h" ?
('"mpfr-test.h"',
"\n tests_start_mpfr ();\n",
"\n tests_end_mpfr ();\n") :
('<mpfr.h>', '', '');
sub gen_print ($$$)
{
my ($m,$l,$f) = @_;
my $lmf = $lm[$l].$f;
printf " %s (\"%-8s: \");\n", $fct[$m], "$cm[$m](%%$lmf)";
foreach my $i (0..2)
{
print " n = $fct[$m] (\" [%".substr($p,0,$i)."$lmf]\", $v[$l]);\n";
print " if (n < 0 || n > $n{$f}) exit (1);\n";
print " $fct[$m] (\"%*s\", $n{$f} - n, \"\");\n";
}
print " $fct[$m] (\"\\n\");\n\n";
}
(my $proc = $0) =~ s:.*/::;
print <<EOF;
/* Generated by $proc */
#include <stdio.h>
#include <stdlib.h>
#include $header
static void tst (double d)
{
mpfr_t x;
int n;
mpfr_init2 (x, 24);
mpfr_set_d (x, d, MPFR_RNDN);
EOF
foreach my $i (qw/e f/)
{
print " puts (\"\");\n\n";
gen_print 0, 0, $i;
gen_print 1, 0, $i;
gen_print 1, 1, $i;
}
print <<EOF;
mpfr_clear (x);
}
int main (void)
{
const char *patches = mpfr_get_patches ();
mp_limb_t m = 0;
mpfr_prec_t p = 0;
int n;
$start
EOF
print <<'EOF';
printf ("GMP ..... Library: %-12s Header: %d.%d.%d\n",
gmp_version, __GNU_MP_VERSION, __GNU_MP_VERSION_MINOR,
__GNU_MP_VERSION_PATCHLEVEL);
printf ("MPFR .... Library: %-12s Header: %s (based on %d.%d.%d)\n",
mpfr_get_version (), MPFR_VERSION_STRING, MPFR_VERSION_MAJOR,
MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL);
printf ("MPFR patches: %s\n\n", patches[0] ? patches : "[none]");
EOF
gen_print 0, 2, 'd';
gen_print 1, 2, 'd';
gen_print 1, 3, 'd';
gen_print 1, 4, 'd';
print <<EOF;
tst (1.2345678);
tst (0.0);
$end
return 0;
}
EOF
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