a2dc2b6549
On OSX, Lean was often crashing when using trace messages. I identified a problem in the thread finalization process. In OSX, the `silent_ios_helper` at `library/trace.cpp` was being finalized after the `null_streambuf` at `util/null_ostream.cpp`. There was also a memory corruption problem also related to `null_streambuf`. This commit fixes this problem by using the following recipe for creating null output stream buffers in C++. https://stackoverflow.com/questions/11826554/standard-no-op-output-stream
17 lines
371 B
C++
17 lines
371 B
C++
/*
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Copyright (c) 2015 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include <iostream>
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#define LEAN_NULL_AUX_BUFFER_SIZE 64
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namespace lean {
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class null_streambuf : public std::streambuf {
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protected:
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virtual int overflow(int c) override { return c; }
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};
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}
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