[bug #16788] 'ORDINARY_MTIME_MAX' macro causes integral constant overflow

[anonymous]

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

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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) &lt;&lt;
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) \
                             &lt;&lt; FILE_TIMESTAMP_LO_BITS) \
                            + ORDINARY_MTIME_MIN - 1 + FILE_TIMESTAMPS_PER_S)
</location>
</remedy>
</bug-report>






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