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| author | Pádraig Brady <P@draigBrady.com> | 2015-06-21 04:04:29 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2015-06-22 02:02:05 +0100 |
| commit | a3c3e1e9e6d2d953692f1eb24efa9ac7c7448044 (patch) | |
| tree | 511d87148bec56ccc4ea3a3d4006a313fec32439 /tests/misc | |
| parent | 0a279f619055cc165bb3cfa3bb737cdd28ed4d70 (diff) | |
| download | coreutils-a3c3e1e9e6d2d953692f1eb24efa9ac7c7448044.tar.xz | |
numfmt: avoid integer overflow when rounding
Due to existing limits this is usually triggered
with an increased precision. We also add further
restrictions to the output of increased precision numbers.
* src/numfmt.c (simple_round): Avoid intmax_t overflow.
(simple_strtod_int): Count digits consistently
for precision loss and overflow detection.
(prepare_padded_number): Include the precision
when excluding numbers to output, since the precision
determines the ultimate values used in the rounding scheme
in double_to_human().
* tests/misc/numfmt.pl: Add previously failing test cases.
* NEWS: Mention the fix.
Diffstat (limited to 'tests/misc')
| -rwxr-xr-x | tests/misc/numfmt.pl | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/misc/numfmt.pl b/tests/misc/numfmt.pl index 4ed1d666d..25bba61b2 100755 --- a/tests/misc/numfmt.pl +++ b/tests/misc/numfmt.pl @@ -21,6 +21,8 @@ use strict; (my $program_name = $0) =~ s|.*/||; my $prog = 'numfmt'; +my $limits = getlimits (); + # TODO: add localization tests with "grouping" # Turn off localization of executable's output. @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3; @@ -534,6 +536,11 @@ my @Tests = {ERR => "$prog: value too large to be printed: '1e+19' " . "(consider using --to)\n"}, {EXIT=>2}], + ['large-4','1000000000000000000.0', + {ERR => "$prog: value/precision too large to be printed: " . + "'1e+18/1' (consider using --to)\n"}, + {EXIT=>2}], + # Test input: # Up to 27 digits is OK. @@ -648,6 +655,10 @@ my @Tests = "(cannot handle values > 999Y)\n"}, {EXIT => 2}], + # intmax_t overflow when rounding caused this to fail before 8.24 + ['large-15',$limits->{INTMAX_OFLOW}, {OUT=>$limits->{INTMAX_OFLOW}}], + ['large-16','9.300000000000000000', {OUT=>'9.300000000000000000'}], + # precision override ['precision-1','--format=%.4f 9991239123 --to=si', {OUT=>"9.9913G"}], ['precision-2','--format=%.1f 9991239123 --to=si', {OUT=>"10.0G"}], |