30 lines
728 B
Go
30 lines
728 B
Go
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package common
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import (
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"reflect"
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"unsafe"
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)
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// b2s converts byte slice to a string without memory allocation.
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// See https://groups.google.com/forum/#!msg/Golang-Nuts/ENgbUzYvCuU/90yGx7GUAgAJ .
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//
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// Note it may break if string and/or slice header will change
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// in the future go versions.
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func b2s(b []byte) string {
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return *(*string)(unsafe.Pointer(&b))
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}
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// s2b converts string to a byte slice without memory allocation.
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//
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// Note it may break if string and/or slice header will change
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// in the future go versions.
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func s2b(s string) []byte {
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sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
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bh := reflect.SliceHeader{
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Data: sh.Data,
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Len: sh.Len,
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Cap: sh.Len,
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}
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return *(*[]byte)(unsafe.Pointer(&bh))
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}
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