py/obj: Verify floating point type is correct for OBJ_REPR_C. #9649
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Prevents double-precision floats being enabled on 32-bit architectures where they will not fit into the mp_obj_t encoding. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Yes, there's a longer discussion here: #8547 (comment) We don't need double precision, but we do need |
Actually I'm sending a PR to update the board config, will set it to single. |
Using repr C is incompatible with double-precision floats on 32-bit arch. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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OK sure thing. I've updated the branch, but can drop the commit later in the rebase if necessary. |
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It's fixed here too along with misc small fixes #9657 |
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@dpgeorge Could you please merge this, because it includes a critical fix for Portenta board. |
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Prevents double-precision floats being enabled on 32-bit architectures where they will not fit into the mp_obj_t encoding.
Also reverts the Portenta board to the default representation as it uses double-precision floats.
@iabdalkader -- I'm not sure why the Portenta was set to OBJ_REPR_C, assuming to avoid heap-allocation of floats. If you want to keep that I guess we could switch the Portenta to use single-precision float instead?