34 lines
666 B
Go
34 lines
666 B
Go
package mysql
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import (
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"unsafe"
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)
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// SignUint8 converts uint8 into int8.
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func SignUint8(v uint8) int8 {
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return *(*int8)(unsafe.Pointer(&v))
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}
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// SignUint16 converts uint16 into int16.
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func SignUint16(v uint16) int16 {
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return *(*int16)(unsafe.Pointer(&v))
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}
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// SignUint24 converts 3-byte uint32 into int32.
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func SignUint24(v uint32) int32 {
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if v&0x00800000 != 0 {
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v |= 0xFF000000
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}
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return *(*int32)(unsafe.Pointer(&v))
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}
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// SignUint32 converts uint32 into int32.
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func SignUint32(v uint32) int32 {
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return *(*int32)(unsafe.Pointer(&v))
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}
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// SignUint64 converts uint64 into int64.
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func SignUint64(v uint64) int64 {
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return *(*int64)(unsafe.Pointer(&v))
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}
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