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Make lbfgs() to return LBFGSERR_CANCELED when callback function returns non-zero value#38

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msakai:return-cancel-when-callback-returns-non-zero
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Make lbfgs() to return LBFGSERR_CANCELED when callback function returns non-zero value#38
msakai wants to merge 1 commit intochokkan:masterfrom
msakai:return-cancel-when-callback-returns-non-zero

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@msakai msakai commented Jun 22, 2023

The second option to resolve #36

…ns non-zero value

Currently, lbfgs() returns the value returned by the callback function
in such cases. But this behavior is undocumented and it may lead
lbfgs() to return a value that is not a pre-defined status code.
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Non-zero return value of a callback function is used as a return value of lbfgs()

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