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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang-format damages "alternative representations" for operators"
href="https://bugs.llvm.org/show_bug.cgi?id=43531">43531</a>
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<th>Summary</th>
<td>clang-format damages "alternative representations" for operators
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Formatter
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>sfinae@hotmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>compl 5 means ~5. When clang-format sees this, it's so eager to smash away the
space, that it emits compl5 which damages the code.
C:\Temp>type woof.cpp
#include <ciso646>
#include <cstdio>
int main()
{
unsigned int x = 7;
x &= ~5;
printf("Should be 2: %u\n", x);
unsigned int y = 7;
y and_eq compl 5;
printf("Should be 2: %u\n", y);
}
C:\Temp>cl /EHsc /nologo /W4 woof.cpp && woof
woof.cpp
Should be 2: 2
Should be 2: 2
C:\Temp>clang-cl -m64 /EHsc /nologo /W4 woof.cpp && woof
Should be 2: 2
Should be 2: 2
C:\Temp>clang-format -i woof.cpp
C:\Temp>type woof.cpp
#include <ciso646>
#include <cstdio>
int main() {
unsigned int x = 7;
x &= ~5;
printf("Should be 2: %u\n", x);
unsigned int y = 7;
y and_eq compl5;
printf("Should be 2: %u\n", y);
}
C:\Temp>cl /EHsc /nologo /W4 woof.cpp && woof
woof.cpp
woof.cpp(10): error C2065: 'compl5': undeclared identifier
C:\Temp>clang-cl -m64 /EHsc /nologo /W4 woof.cpp && woof
woof.cpp(10,12): error: use of undeclared identifier 'compl5'
y and_eq compl5;
^
1 error generated.
C:\Temp>clang-format -version
clang-format version 8.0.1 (tags/RELEASE_801/final)</pre>
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