[PATCH] D49503: [test-suite] Added Image Processing Kernels Using Benchmark Library: Dither Algorithms

[Pankaj via Phabricator via llvm-commits]

proton added inline comments.


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Comment at: MicroBenchmarks/ImageProcessing/Dither/main.cpp:36
+
+  initializeRandomImage((int *)*inputImage, HEIGHT, WIDTH);
+
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Meinersbur wrote:
> Does this work? It dereferences the pointer returned by malloc (which should be the //uninitialized// first bytes of the memory allocated be malloc) and then casts it to a pointer. Id' expect this to result in a segfault.
Yes, It works properly because the pointer returned by malloc is casted as **int (*) [][]**. So to access the array we have to first dereference the pointer (use it as (*inputImage)[i][j]).


https://reviews.llvm.org/D49503