https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89507
Bug ID: 89507
Summary: bogus "size of array exceeds maximum object size"
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: sbergman at redhat dot com
CC: caolanm at redhat dot com, msebor at gcc dot gnu.org
Target Milestone: ---
With current trunk (towards GCC 9),
> $ cat test.cc
> unsigned char const n = 128;
> int * p = new int[n];
>
> $ g++ -c test.cc
> test.cc:2:20: error: size ‘128’ of array exceeds maximum object size
> ‘9223372036854775807’
> 2 | int * p = new int[n];
> | ^
This looks like a regression introduced with
<https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=268774> "PR c++/87996 -
size of array is negative error when SIZE_MAX/2 < sizeof(array) <= SIZE_MAX".
(This breaks the build of LibreOffice,
> [CXX] i18npool/source/characterclassification/cclass_unicode_parser.cxx
> i18npool/source/characterclassification/cclass_unicode_parser.cxx: In member
> function ‘void i18npool::cclass_Unicode::initParserTable(const
> com::sun::star::lang::Locale&, sal_Int32, const rtl::OUString&, sal_Int32,
> const rtl::OUString&)’:
> i18npool/source/characterclassification/cclass_unicode_parser.cxx:417:45:
> error: size ‘128’ of array exceeds maximum object size ‘9223372036854775807’
> 417 | pTable.reset(new ParserFlags[nDefCnt]);
> | ^
.)
