forked from mirrors/nixpkgs
31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
http://patchwork.ozlabs.org/patch/630200/
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From 28cfdbbcb96a69087c3d21faf69b5eae7bcf6d69 Mon Sep 17 00:00:00 2001
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From: Hodorgasm <nsane457@gmail.com>
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Date: Wed, 11 May 2016 21:42:07 -0400
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Subject: [PATCH] Cast to unsigned while left bit-shifting
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GCC-6 now treats the left bitwise-shift of a negative integer as nonconformant so explicitly cast to an unsigned int while bit-shifting.
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Downloaded from upstream PR:
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https://github.com/mpruett/audiofile/pull/28
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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---
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libaudiofile/modules/SimpleModule.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libaudiofile/modules/SimpleModule.h b/libaudiofile/modules/SimpleModule.h
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index 03c6c69..4014fb2 100644
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--- a/libaudiofile/modules/SimpleModule.h
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+++ b/libaudiofile/modules/SimpleModule.h
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@@ -123,7 +123,7 @@ struct signConverter
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typedef typename IntTypes<Format>::UnsignedType UnsignedType;
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static const int kScaleBits = (Format + 1) * CHAR_BIT - 1;
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- static const int kMinSignedValue = -1 << kScaleBits;
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+ static const int kMinSignedValue = static_cast<signed>(static_cast<unsigned>(-1) << kScaleBits);;
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struct signedToUnsigned : public std::unary_function<SignedType, UnsignedType>
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{
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