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Silence 'unused typedef' warning for STATIC_ASSERT()
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@ -38,9 +38,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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C(const C &); \
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C(const C &); \
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C &operator=(const C &)
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C &operator=(const C &)
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#ifndef _MSC_VER
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#define UNUSED_ATTRIBUTE __attribute__ ((unused))
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#else
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#define UNUSED_ATTRIBUTE
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#endif
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// Fail compilation if condition expr is not met.
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// Fail compilation if condition expr is not met.
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// Note that 'msg' must follow the format of a valid identifier, e.g.
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// Note that 'msg' must follow the format of a valid identifier, e.g.
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// STATIC_ASSERT(sizeof(foobar_t) == 40), foobar_t_is_wrong_size);
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// STATIC_ASSERT(sizeof(foobar_t) == 40), foobar_t_is_wrong_size);
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#define STATIC_ASSERT(expr, msg) typedef char msg[!!(expr) * 2 - 1]
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#define STATIC_ASSERT(expr, msg) \
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UNUSED_ATTRIBUTE typedef char msg[!!(expr) * 2 - 1]
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#endif
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#endif
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