- workaround for older gcc versions (<4.6) sometimes copying temporaries even though they shouldn't.
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@ -90,6 +90,19 @@ public:
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underlying << sin;
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}
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// The problem described here:
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// https://sourceforge.net/tracker/?func=detail&atid=1067632&aid=3358562&group_id=226462
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// can also cause trouble here. Apparently, older gcc versions sometimes copy temporaries
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// being bound to const ref& function parameters. Copying streams is not permitted, though.
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// This workaround avoids this by manually specifying a copy ctor.
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#if !defined(__GNUC__) || !defined(__APPLE__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
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basic_formatter(const basic_formatter& other) {
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underlying << (string)other;
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}
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#endif
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public:
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operator string () const {
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