examples/looks_like_mpi: Fix build errors - #468
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meta-codesync[bot] merged 2 commits intoOct 21, 2025
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These MPI-like functions have int return types, but never return. This throws warnings at build time, for example: gloo/examples/looks_like_mpi.cc: In function ‘int MPI_Barrier(MPI_Comm)’: gloo/examples/looks_like_mpi.cc:62:1: warning: control reaches end of non-void function [-Wreturn-type] 62 | } Fix these warnings by simply returning MPI_SUCCESS (0) from these functions. It seems failure cases are already covered by assertions for this example.
The Store API was changed to use shared_ptrs in 9ba706d. However, the looks_like_mpi example app was not updated for this new API, and fails to build. Fix this by using shared_ptrs for the {File,Prefix}Store in looks_like_mpi.
jackbondpreston-arm
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Gloo is currently hitting two compilation issues when trying to compile examples/looks_like_mpi. These are addressed by two commits in this PR:
int, but don't return anything. Fix this by just always returningMPI_SUCCESS(0), since this example handles error cases withASSERTstatements.shared_ptr-based API for gloo Stores (9ba706d) is not being used. Fixed by using the new API.