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Commitdf837d0

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Use the libc++ detection instead of clang detection around std:isinfinite (#52164)
Summary:Fixes#52163The libc++ vs libstdc++ detection in the pre-processor is taken fromhttps://stackoverflow.com/questions/31657499/how-to-detect-stdlib-libc-in-the-preprocessorNote that in our case `std:isinfinite` presents means that we don't need to import any additional headers to guarantee the `_LIBCPP_VERSION` presents for the `libc++`.Pull Requestresolved:#52164Reviewed By: albanDDifferential Revision: D26413108Pulled By: malfetfbshipit-source-id: 515e258d6758222c910ababf5172c3a275aff08f
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‎aten/src/ATen/native/cpu/MultinomialKernel.cpp‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -47,9 +47,9 @@ void multinomial_with_replacement_apply(
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for (int64_t j =0; j < n_categories; j++) {
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val = self_ptr[i * self_stride_0 + j * self_stride_1];
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TORCH_CHECK(val >=0,"invalid multinomial distribution (encountering probability entry < 0)");
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// NB: std::isfinite doesn't bode well withclang for half datatypes,
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// NB: std::isfinite doesn't bode well withlibc++ for half datatypes,
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// so we manually cast it to a double and perform the check.
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#if defined(__clang__)
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#if defined(_LIBCPP_VERSION)
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TORCH_CHECK(std::isfinite(static_cast<double>(val)),
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"invalid multinomial distribution (encountering probability entry = infinity or NaN)");
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#else

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