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Add some explanatory comments to ErrnoGuard
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@ -9,8 +9,12 @@
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namespace Catch {
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//! Simple RAII class that stores the value of `errno`
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//! at construction and restores it at destruction.
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class ErrnoGuard {
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public:
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// Keep these outlined to avoid dragging in macros from <cerrno>
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ErrnoGuard();
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~ErrnoGuard();
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private:
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