c('PL_uninstantiation_error')

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PL_uninstantiation_error()

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Availability:C-language interface function

bool PL_uninstantiation_error(term_t culprit)

Raise uninstantiation_error(culprit). This should be called if an argument that must be unbound at entry is bound to culprit. This error is typically raised for a pure output arguments such as a newly created stream handle (e.g., the third argument of open/3).