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bitops.h: sextract64() return type should be int64_t, not uint64_t

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The documentation for sextract64() claims that the return type is
an int64_t, but the code itself disagrees. Fix the return type to
conform to the documentation and to bring it into line with
sextract32(), which returns int32_t.

Backports commit 4f9950520a115acf9c0a209f0befa45758ad0215 from qemu
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Lioncash 2018-02-12 16:08:12 -05:00
parent aed1972af9
commit c55c8b24f9
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qemu/include/qemu/bitops.h
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@ -344,7 +344,7 @@ static inline int32_t sextract32(uint32_t value, int start, int length)
* Returns: the sign extended value of the bit field extracted from the * Returns: the sign extended value of the bit field extracted from the
* input value. * input value.
*/ */
static inline uint64_t sextract64(uint64_t value, int start, int length) static inline int64_t sextract64(uint64_t value, int start, int length)
{ {
assert(start >= 0 && length > 0 && length <= 64 - start); assert(start >= 0 && length > 0 && length <= 64 - start);
/* Note that this implementation relies on right shift of signed /* Note that this implementation relies on right shift of signed