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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - error: no return statement in constexpr function for templated MPI_Datatype"
href="https://bugs.llvm.org/show_bug.cgi?id=48684">48684</a>
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<th>Summary</th>
<td>error: no return statement in constexpr function for templated MPI_Datatype
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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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
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<th>Component</th>
<td>C++14
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>rai.deepali07@gmail.com
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</tr>
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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>Created <span class=""><a href="attachment.cgi?id=24356" name="attach_24356" title="test.out.cpp with mpi.h included in it.">attachment 24356</a> <a href="attachment.cgi?id=24356&action=edit" title="test.out.cpp with mpi.h included in it.">[details]</a></span>
test.out.cpp with mpi.h included in it.
Attached test case when compiled with clang++, gives this error:
test.cpp:5:24: error: no return statement in constexpr function
constexpr MPI_Datatype get_mpi_type() {
^
test.cpp:10:24: error: no function template matches function template
specialization 'get_mpi_type'
constexpr MPI_Datatype get_mpi_type<float>() {
^
test.cpp:5:24: note: candidate template ignored: substitution failure [with num
= float]
constexpr MPI_Datatype get_mpi_type() {
^
test.cpp:15:14: error: no function template matches function template
specialization 'get_mpi_type'
MPI_Datatype get_mpi_type<double>() {
^
test.cpp:5:24: note: candidate template ignored: substitution failure [with num
= double]
constexpr MPI_Datatype get_mpi_type() {
^
3 errors generated.
If any once has any idea on this issue please let me know.</pre>
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