40 lines
637 B
C
40 lines
637 B
C
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/*
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* Copyright 2010, Oliver Tappe, zooey@hirschkaefer.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _ERRNO_MAINTAINER_H
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#define _ERRNO_MAINTAINER_H
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#include <errno.h>
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namespace BPrivate {
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/**
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* A helper class resetting errno to 0 if it has been set during the execution
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* of ICU methods. Any changes of errno shall only be done by our callers.
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*/
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class ErrnoMaintainer {
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public:
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ErrnoMaintainer()
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: fErrnoUponEntry(errno)
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{
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}
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~ErrnoMaintainer()
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{
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if (errno != 0 && fErrnoUponEntry == 0)
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errno = 0;
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}
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private:
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int fErrnoUponEntry;
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};
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} // namespace BPrivate
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#endif // _ERRNO_MAINTAINER_H
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