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* [Bug analyzer/97614] New: MinGW-w64 pointer to long conversion loses precision error
@ 2020-10-28 9:56 brechtsanders at users dot sourceforge.net
2020-10-28 20:12 ` [Bug analyzer/97614] " dmalcolm at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: brechtsanders at users dot sourceforge.net @ 2020-10-28 9:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97614
Bug ID: 97614
Summary: MinGW-w64 pointer to long conversion loses precision
error
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: brechtsanders at users dot sourceforge.net
Target Milestone: ---
When compiling GCC 11-20201025 with MinGW-w64 I got the following error:
../../gcc/analyzer/store.h: In member function 'hashval_t
ana::symbolic_binding::hash() const':
../../gcc/analyzer/store.h:272:41: error: cast from 'const ana::region*' to
'long int' loses precision [-fpermissive]
272 | return (binding_key::impl_hash () ^ (long)m_region);
| ^~~~~~~~~~~~~~
This is typically caused by the false assumption that pointer and long have the
same size, which is not true on Windows/MinGW.
Usually the solution is to cast to something like intptr_t instead of long.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug analyzer/97614] MinGW-w64 pointer to long conversion loses precision error
2020-10-28 9:56 [Bug analyzer/97614] New: MinGW-w64 pointer to long conversion loses precision error brechtsanders at users dot sourceforge.net
@ 2020-10-28 20:12 ` dmalcolm at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: dmalcolm at gcc dot gnu.org @ 2020-10-28 20:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97614
David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Thanks for filing this; looks like a duplicate of PR 96608.
*** This bug has been marked as a duplicate of bug 96608 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-10-28 9:56 [Bug analyzer/97614] New: MinGW-w64 pointer to long conversion loses precision error brechtsanders at users dot sourceforge.net
2020-10-28 20:12 ` [Bug analyzer/97614] " dmalcolm at gcc dot gnu.org
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