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    <p>Go is designed to be a terse, minimalist language. It therefore started with just values and pointers. Later, by necessity, some reference types (slices, maps, and channels) were added.</p> <hr> <p><a href="http://golang.org/doc/faq#references" rel="noreferrer">The Go Programming Language : Language Design FAQ : Why are maps, slices, and channels references while arrays are values?</a></p> <p>"There's a lot of history on that topic. Early on, maps and channels were syntactically pointers and it was impossible to declare or use a non-pointer instance. Also, we struggled with how arrays should work. Eventually we decided that the strict separation of pointers and values made the language harder to use. Introducing reference types, including slices to handle the reference form of arrays, resolved these issues. Reference types add some regrettable complexity to the language but they have a large effect on usability: Go became a more productive, comfortable language when they were introduced."</p> <hr> <p>Fast compilation is a major design goal of the Go programming language; that has its costs. One of the casualties appears to be the ability to mark variables (except for basic compile time constants) and parameters as immutable. It's been requested, but turned down.</p> <hr> <p><a href="http://groups.google.com/group/golang-nuts/msg/7d7ec2854db125f2" rel="noreferrer">golang-nuts : go language. Some feedback and doubts.</a></p> <p>"Adding const to the type system forces it to appear everywhere, and forces one to remove it everywhere if something changes. While there may be some benefit to marking objects immutable in some way, we don't think a const type qualifier is to way to go."</p>
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    1. POWhat's the point of having pointers in Go?
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    1. USJames Curbo
    1. USpeterSO
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    1. COFWIW, "reference types" in Go are also reassignable. They're more like implicit pointers?
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      1. USMatt Joiner
    2. COThey are just special syntax for structs that contain a pointer (and length, capacity, ...).
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      1. USmk12
 

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