[Bug 38962] New: expr.c:234 and 235 attempted computation of 1 << 31 should be 1u << 31
wine-bugs at winehq.org
wine-bugs at winehq.org
Wed Jul 22 08:51:11 CDT 2015
https://bugs.winehq.org/show_bug.cgi?id=38962
Bug ID: 38962
Summary: expr.c:234 and 235 attempted computation of 1 << 31
should be 1u << 31
Product: Wine
Version: 1.7.47
Hardware: x86-64
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tools
Assignee: wine-bugs at winehq.org
Reporter: vitti570 at gmail.com
Distribution: ---
Running widl, in tools/widl/expr.c lines 234 and 235:
cast_mask = ((1 << (cast_type_bits - 1)) - 1) |
1 << (cast_type_bits - 1);
cast_type_bits is 32 thus causing computation of 1 << 31 which cannot be
represented in type 'int'.
This is illegal and undefined.
It should be
cast_mask = ((1u << (cast_type_bits - 1)) - 1) |
1u << (cast_type_bits - 1);
instead.
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