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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - suggest including stdbool.h in C mode when missing definition of true/false, etc."
href="https://bugs.llvm.org/show_bug.cgi?id=51214">51214</a>
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<th>Summary</th>
<td>suggest including stdbool.h in C mode when missing definition of true/false, etc.
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>hans@chromium.org
</td>
</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>(From <a href="https://twitter.com/hansw2000/status/1419275810163331074">https://twitter.com/hansw2000/status/1419275810163331074</a>)
Consider:
$ cat /tmp/a.c
#include <stdlib.h>
int foo();
int main() {
while (true) { if (foo() == 42) break; }
}
$ clang -c /tmp/a.c
/tmp/a.c:6:10: error: use of undeclared identifier 'true'; did you mean 'free'?
while (true) { if (foo() == 42) break; }
^~~~
free
/usr/include/stdlib.h:565:13: note: 'free' declared here
extern void free (void *__ptr) __THROW;
^
1 error generated.
The "did you mean 'free'" hint is amusing, but it would be more helpful if
clang suggested including stdbool.h here, like it does with many standard
library functions.</pre>
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