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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang does not warn about nodiscard in a range-based for loop"
href="https://bugs.llvm.org/show_bug.cgi?id=39837">39837</a>
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<th>Summary</th>
<td>clang does not warn about nodiscard in a range-based for loop
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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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>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>blastrock@free.fr
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>clang does not issue a warning when compiling the following program:
#include <initializer_list>
struct [[nodiscard]] X {};
X f() { return {}; }
int main(int argc, char *argv[]) {
for (int const& i : {1})
f(); // Should warn here!
return 0;
}
Godbolt link: <a href="https://godbolt.org/z/7sAfXU">https://godbolt.org/z/7sAfXU</a>
It does issue a warning if we put explicit braces in the for-loop body though.</pre>
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