зеркало из https://github.com/mozilla/gecko-dev.git
26 строки
1.2 KiB
Diff
26 строки
1.2 KiB
Diff
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diff --git a/mfbt/double-conversion/utils.h b/mfbt/double-conversion/utils.h
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--- a/mfbt/double-conversion/utils.h
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+++ b/mfbt/double-conversion/utils.h
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@@ -275,19 +275,18 @@ class StringBuilder {
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// There is an additional use for BitCast.
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// Recent gccs will warn when they see casts that may result in breakage due to
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// the type-based aliasing rule. If you have checked that there is no breakage
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// you can use BitCast to cast one pointer type to another. This confuses gcc
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// enough that it can no longer see that you have cast one pointer type to
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// another thus avoiding the warning.
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template <class Dest, class Source>
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inline Dest BitCast(const Source& source) {
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- // Compile time assertion: sizeof(Dest) == sizeof(Source)
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- // A compile error here means your Dest and Source have different sizes.
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- typedef char VerifySizesAreEqual[sizeof(Dest) == sizeof(Source) ? 1 : -1];
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+ static_assert(sizeof(Dest) == sizeof(Source),
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+ "BitCast's source and destination types must be the same size");
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Dest dest;
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memmove(&dest, &source, sizeof(dest));
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return dest;
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}
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template <class Dest, class Source>
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inline Dest BitCast(Source* source) {
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