https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100805
Bug ID: 100805
Summary: __int128 should be disabled for non-extended -std=
options
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dje at gcc dot gnu.org
Target Milestone: ---
The __int128 extended type should not be enabled in strict standard mode, e.g.,
not gnu extended standard.
auto typechk = 0 ? 9223372036854775808 : -1;
unsigned long &typechk_p = &typeck;
64 bit mode:
error: cannot convert `__int128*' to `long unsigned int*' in initialization
32 bit mode:
error: invalid conversion from `long long int*' to `long long unsigned int*'
[-fpermissive]
using a signed type that is too small to preserve the value.
It seems that promoting the value to a type that is an extension is incorrect
in strict standard mode.
