template byaddr(lhs, typ, ex)
Allows a syntax for lvalue reference, exact analog to auto& a = ex; in C++
Example:
var s = @[10,11,12]
var a {.byaddr.} = s[0]
a+=100
doAssert s == @[110,11,12]
doAssert a is int
var b {.byaddr.}: int = s[0]
doAssert a.addr == b.addr
Source
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