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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - istream getline sets eof prematurely"
href="http://llvm.org/bugs/show_bug.cgi?id=16162">16162</a>
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<th>Summary</th>
<td>istream getline sets eof prematurely
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
</td>
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<th>Assignee</th>
<td>hhinnant@apple.com
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<th>Reporter</th>
<td>stephan.bergmann.secondary@googlemail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>At least on Mac OS X 10.7.5 with Xcode 4.6.2 (clang --version "Apple LLVM
version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)"), libc++ getline sets
eofbit already when it reads a delim-terminated line that will be followed by
eof (which getline should not yet inspect, according to [istream.unformatted]
in both the C++03 and C++11 standards). That is, with a test.cc
<span class="quote">> #include <cstdlib>
> #include <iostream>
>
> int main() {
> char b[100];
> std::cin.getline(b, sizeof b);
> return std::cin.eof() ? EXIT_FAILURE : EXIT_SUCCESS;
> }</span >
and a Makefile
<span class="quote">> .PHONY: TEST1 TEST2
>
> TEST1: test1 oneline
> ./test1 <oneline
>
> TEST2: test2 oneline
> ./test2 <oneline
>
> test1: test.cc
> clang++ -stdlib=libc++ test.cc -o $@
>
> test2: test.cc
> clang++ test.cc -o $@
>
> oneline:
> printf 'oneline\n' >$@</span >
"make TEST1" fails while "make TEST2" (using libstdc++ instead) succeeds.</pre>
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