36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
package base64x
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import (
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`reflect`
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`unsafe`
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)
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func mem2str(v []byte) (s string) {
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(*reflect.StringHeader)(unsafe.Pointer(&s)).Len = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Len
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(*reflect.StringHeader)(unsafe.Pointer(&s)).Data = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Data
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return
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}
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func str2mem(s string) (v []byte) {
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(*reflect.SliceHeader)(unsafe.Pointer(&v)).Cap = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
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(*reflect.SliceHeader)(unsafe.Pointer(&v)).Len = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
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(*reflect.SliceHeader)(unsafe.Pointer(&v)).Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
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return
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}
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func mem2addr(v []byte) unsafe.Pointer {
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return *(*unsafe.Pointer)(unsafe.Pointer(&v))
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}
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// NoEscape hides a pointer from escape analysis. NoEscape is
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// the identity function but escape analysis doesn't think the
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// output depends on the input. NoEscape is inlined and currently
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// compiles down to zero instructions.
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// USE CAREFULLY!
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//go:nosplit
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//goland:noinspection GoVetUnsafePointer
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func noEscape(p unsafe.Pointer) unsafe.Pointer {
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x := uintptr(p)
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return unsafe.Pointer(x ^ 0)
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}
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