diff options
Diffstat (limited to 'libgo/go/builtin/builtin.go')
| -rw-r--r-- | libgo/go/builtin/builtin.go | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libgo/go/builtin/builtin.go b/libgo/go/builtin/builtin.go index 91d263a6234..128a1b5f8fc 100644 --- a/libgo/go/builtin/builtin.go +++ b/libgo/go/builtin/builtin.go @@ -13,6 +13,12 @@ package builtin // bool is the set of boolean values, true and false. type bool bool +// true and false are the two untyped boolean values. +const ( + true = 0 == 0 // Untyped bool. + false = 0 != 0 // Untyped bool. +) + // uint8 is the set of all unsigned 8-bit integers. // Range: 0 through 255. type uint8 uint8 @@ -85,6 +91,15 @@ type byte byte // used, by convention, to distinguish character values from integer values. type rune rune +// iota is a predeclared identifier representing the untyped integer ordinal +// number of the current const specification in a (usually parenthesized) +// const declaration. It is zero-indexed. +const iota = 0 // Untyped int. + +// nil is a predeclared identifier representing the zero value for a +// pointer, channel, func, interface, map, or slice type. +var nil Type // Type must be a pointer, channel, func, interface, map, or slice type + // Type is here for the purposes of documentation only. It is a stand-in // for any Go type, but represents the same type for any given function // invocation. @@ -114,6 +129,8 @@ type ComplexType complex64 // result of append, often in the variable holding the slice itself: // slice = append(slice, elem1, elem2) // slice = append(slice, anotherSlice...) +// As a special case, it is legal to append a string to a byte slice, like this: +// slice = append([]byte("hello "), "world"...) func append(slice []Type, elems ...Type) []Type // The copy built-in function copies elements from a source slice into a |