URL:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=16788>
Summary: 'ORDINARY_MTIME_MAX' macro causes integral constant
overflow
Project: make
Submitted by: None
Submitted on: Thursday 06/08/06 at 19:09 UTC
Severity: 3 - Normal
Item Group: Enhancement
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Component Version: 3.81
Operating System: MS Windows
Fixed Release: None
_______________________________________________________
Details:
Abstract: The macro causes a compiler warning. Workaround: rearrange the
additions. The details are attached in XML below.
<bug-report>
<behaviour>
<location path="make-3.81/file.c" line="775">
FILE_TIMESTAMP_S (ORDINARY_MTIME_MAX)
</location>
<output>
warning C4307: '+' : integral constant overflow
</output>
</behaviour>
<reason>
The warning is caused by the addition (FILE_TIMESTAMP_S (NEW_MTIME) <<
FILE_TIMESTAMP_LO_BITS) + ORDINARY_MTIME_MIN + FILE_TIMESTAMPS_PER_S
</reason>
<remedy>
<location path="make-3.81/filedef.h" line="188">
#define ORDINARY_MTIME_MAX ((FILE_TIMESTAMP_S (NEW_MTIME) \
<< FILE_TIMESTAMP_LO_BITS) \
+ ORDINARY_MTIME_MIN - 1 + FILE_TIMESTAMPS_PER_S)
</location>
</remedy>
</bug-report>
_______________________________________________________
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