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The following pragma forces an implementation to detect potentially blocking operations within a protected operation.
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The form of a pragma Detect_Blocking is as follows:
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pragma Detect_Blocking;
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A pragma Detect_Blocking is a configuration pragma.
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An implementation is required to detect a potentially blocking operation within a protected operation, and to raise Program_Error (see 9.5.1).
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An implementation is allowed to reject a compilation_unit if a potentially blocking operation is present directly within an entry_body or the body of a protected subprogram.
NOTES
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11 An operation that causes a task to be blocked within a foreign language domain is not defined to be potentially blocking, and need not be detected.