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flag: fix docs on flag.Var.

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R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4539067
This commit is contained in:
David Symonds 2011-05-19 14:53:26 +10:00
parent 24b2f48a4a
commit bddd092dc3
1 changed files with 6 additions and 2 deletions
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8
src/pkg/flag/flag.go
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@ -405,8 +405,12 @@ func Float64(name string, value float64, usage string) *float64 {
return p
}
// Var defines a user-typed flag with specified name, default value, and usage string.
// The argument p points to a Value variable in which to store the value of the flag.
// Var defines a flag with the specified name and usage string. The type and
// value of the flag are represented by the first argument, of type Value, which
// typically holds a user-defined implementation of Value. For instance, the
// caller could create a flag that turns a comma-separated string into a slice
// of strings by giving the slice the methods of Value; in particular, Set would
// decompose the comma-separated string into the slice.
func Var(value Value, name string, usage string) {
// Remember the default value as a string; it won't change.
f := &Flag{name, usage, value, value.String()}