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core: add "namespace cv" in CV_StaticAssert fallback implementation

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This commit is contained in:
Alexander Alekhin 2019-12-11 00:35:13 +00:00
parent e47f3e5bcc
commit 76b5e19eb3
1 changed files with 2 additions and 0 deletions
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2
modules/core/include/opencv2/core/cvdef.h
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@ -118,9 +118,11 @@ namespace cv { namespace debug_build_guard { } using namespace debug_build_guard
# if !defined(__clang__) && defined(__GNUC__) && (__GNUC__*100 + __GNUC_MINOR__ > 302)
# define CV_StaticAssert(condition, reason) ({ extern int __attribute__((error("CV_StaticAssert: " reason " " #condition))) CV_StaticAssert(); ((condition) ? 0 : CV_StaticAssert()); })
# else
namespace cv {
template <bool x> struct CV_StaticAssert_failed;
template <> struct CV_StaticAssert_failed<true> { enum { val = 1 }; };
template<int x> struct CV_StaticAssert_test {};
}
# define CV_StaticAssert(condition, reason)\
typedef cv::CV_StaticAssert_test< sizeof(cv::CV_StaticAssert_failed< static_cast<bool>(condition) >) > CVAUX_CONCAT(CV_StaticAssert_failed_at_, __LINE__)
# endif