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Merge pull request #6879 from savuor:fix/RNG_corrupts_stack

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Vadim Pisarevsky
2016-07-20 13:13:40 +00:00
parent b34272f8a2 96edb270a6
commit 848c66babd
2 changed files with 24 additions and 7 deletions
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modules/core/test/test_rand.cpp
+17
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@@ -365,3 +365,20 @@ TEST(Core_RNG_MT19937, regression)
ASSERT_EQ(expected[i], actual[i]);
}
}
TEST(Core_Rand, Regression_Stack_Corruption)
{
int bufsz = 128; //enough for 14 doubles
AutoBuffer<uchar> buffer(bufsz);
size_t offset = 0;
cv::Mat_<cv::Point2d> x(2, 3, (cv::Point2d*)(buffer+offset)); offset += x.total()*x.elemSize();
double& param1 = *(double*)(buffer+offset); offset += sizeof(double);
double& param2 = *(double*)(buffer+offset); offset += sizeof(double);
param1 = -9; param2 = 2;
cv::theRNG().fill(x, cv::RNG::NORMAL, param1, param2);
ASSERT_EQ(param1, -9);
ASSERT_EQ(param2, 2);
}