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32 lines
1.2 KiB
Diff
32 lines
1.2 KiB
Diff
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From 004f415c5d04dd1f616a953eb8ad078a20b72c58 Mon Sep 17 00:00:00 2001
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From: "Steven G. Johnson" <stevenj@mit.edu>
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Date: Sat, 9 May 2020 13:56:40 -0400
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Subject: [PATCH] suppress MS compiler complaint about negating unsigned
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(closes #330)
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---
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src/util/sobolseq.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/src/util/sobolseq.c b/src/util/sobolseq.c
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index 6626f51..848ff68 100644
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--- a/src/util/sobolseq.c
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+++ b/src/util/sobolseq.c
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@@ -93,7 +93,12 @@ static unsigned rightzero32(uint32_t n)
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const uint32_t a = 0x05f66a47; /* magic number, found by brute force */
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static const unsigned decode[32] = { 0, 1, 2, 26, 23, 3, 15, 27, 24, 21, 19, 4, 12, 16, 28, 6, 31, 25, 22, 14, 20, 18, 11, 5, 30, 13, 17, 10, 29, 9, 8, 7 };
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n = ~n; /* change to rightmost-one problem */
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- n = a * (n & (-n)); /* store in n to make sure mult. is 32 bits */
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+#ifdef _MSC_VER
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+#pragma warning(suppress:4146)
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+ n = a * (n & (-n)); /* same as below, but suppress spurious warning/error with MS compiler about negating unsigned int */
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+#else
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+ n = a * (n & (-n)); /* store in n to make sure mult. is 32 bits */
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+#endif
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return decode[n >> 27];
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#endif
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}
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--
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2.26.2.windows.1
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