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<body><span class="vcard"><a class="email" href="mailto:pinskia@gcc.gnu.org" title="Andrew Pinski <pinskia@gcc.gnu.org>"> <span class="fn">Andrew Pinski</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - bogus "format string is not a string literal" warnings"
href="http://llvm.org/bugs/show_bug.cgi?id=22701">bug 22701</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>RESOLVED
</td>
<td>REOPENED
</td>
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<td style="text-align:right;">CC</td>
<td>
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<td>pinskia@gcc.gnu.org
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<td style="text-align:right;">Resolution</td>
<td>INVALID
</td>
<td>---
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - bogus "format string is not a string literal" warnings"
href="http://llvm.org/bugs/show_bug.cgi?id=22701#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - bogus "format string is not a string literal" warnings"
href="http://llvm.org/bugs/show_bug.cgi?id=22701">bug 22701</a>
from <span class="vcard"><a class="email" href="mailto:pinskia@gcc.gnu.org" title="Andrew Pinski <pinskia@gcc.gnu.org>"> <span class="fn">Andrew Pinski</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=22701#c7">comment #7</a>)
<span class="quote">>
> This is *precisely* the problem that -Wformat-nonliteral is supposed to
> detect -- your format string is not a string literal -- so, no, this is the
> right flag. GCC's warning is broken and fails to fire in this case; that's
> their bug, not ours.</span >
Where is -Wformat-nonliteral documented? Because GCC documents it as:
-Wformat-nonliteral
If -Wformat is specified, also warn if the format string is not a string
literal and so cannot be checked, unless the format function takes its format
arguments as a va_list.
Notice the last part of the sentence; this conflicts with the way clang
implements this warning. I can't seem to find clang's documentation for half
of the options that clang implemented in the user guide.</pre>
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