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fmt: tweak the explanation of Stringer to be more correct and less specific

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The String method is called whenever the printing operation wants a string,
not just for %s and %v.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/8638043
This commit is contained in:
Rob Pike 2013-04-10 14:05:34 -07:00
parent d06313e8ce
commit bb195f6793
1 changed files with 3 additions and 2 deletions
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5
src/pkg/fmt/print.go
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@ -47,7 +47,7 @@ type State interface {
}
// Formatter is the interface implemented by values with a custom formatter.
// The implementation of Format may call Sprintf or Fprintf(f) etc.
// The implementation of Format may call Sprint(f) or Fprint(f) etc.
// to generate its output.
type Formatter interface {
Format(f State, c rune)
@ -56,7 +56,8 @@ type Formatter interface {
// Stringer is implemented by any value that has a String method,
// which defines the ``native'' format for that value.
// The String method is used to print values passed as an operand
// to a %s or %v format or to an unformatted printer such as Print.
// to any format that accepts a string or to an unformatted printer
// such as Print.
type Stringer interface {
String() string
}