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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Compiler error when using lambda inside if initializer"
href="https://bugs.llvm.org/show_bug.cgi?id=46242">46242</a>
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<th>Summary</th>
<td>Compiler error when using lambda inside if initializer
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>10.0
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++17
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>danijel.zlaus@gmail.com
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>Hi, I have discovered a slight bug (?). The following code does not compile
when the lambda is used inside an if initializer
//Compiler error, error: redefinition of 'foo'
if(int foo = [&](){
int foo = 0;
return foo;
}();
foo)
{
...
}
While if the same code is used outside of an initilizer statement it works as
expected.
int foo = [&](){
int foo = 0;
return foo;
}();
if(foo)
{
return 1;
}
GCC compiles both cases fine, so I suspect this is a bug in the clang frontend.
Example on compiler explorer here:
<a href="https://godbolt.org/z/hcUZrx">https://godbolt.org/z/hcUZrx</a></pre>
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