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fmt: add Errorf helper function

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This crops up in a lot of places.
It's just a one-liner, but doesn't add any dependancies.
Seems worth it.

R=r, r2
CC=golang-dev
https://golang.org/cl/2344041
This commit is contained in:
Andrew Gerrand 2010-10-01 14:04:55 +10:00
parent 57858b70fb
commit 558477eeb1
1 changed files with 6 additions and 0 deletions
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6
src/pkg/fmt/print.go
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@ -159,6 +159,12 @@ func Sprintf(format string, a ...interface{}) string {
return s
}
// Errorf formats according to a format specifier and returns the string
// converted to an os.ErrorString, which satisfies the os.Error interface.
func Errorf(format string, a ...interface{}) os.Error {
return os.ErrorString(Sprintf(format, a...))
}
// These routines do not take a format string
// Fprint formats using the default formats for its operands and writes to w.