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math/big: correct umax 

Change-Id: I208c8ac44d1a8882d8fdeb18347dc20941e20374
Reviewed-on: https://go-review.googlesource.com/4250
Reviewed-by: Alan Donovan <adonovan@google.com>
This commit is contained in:
Robert Griesemer 2015-02-09 11:26:56 -08:00
parent f8176f8111
commit 04ce9dbf35
1 changed files with 3 additions and 4 deletions
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7
src/math/big/float.go
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@ -439,7 +439,7 @@ func (z *Float) SetInt64(x int64) *Float {
return z
}
// SetInt64 sets z to the (possibly rounded) value of x and returns z.
// SetFloat64 sets z to the (possibly rounded) value of x and returns z.
// If z's precision is 0, it is changed to 53 (and rounding will have
// no effect).
// If x is denormalized or NaN, the result is unspecified.
@ -525,8 +525,7 @@ func (z *Float) SetRat(x *Rat) *Float {
a.SetInt(x.Num())
b.SetInt(x.Denom())
if z.prec == 0 {
// TODO(gri) think about a.prec type to avoid excessive conversions
z.prec = uint(max(int(a.prec), int(b.prec)))
z.prec = umax(a.prec, b.prec)
}
return z.Quo(&a, &b)
}
@ -1072,7 +1071,7 @@ func (x *Float) Sign() int {
}
func umax(x, y uint) uint {
if x < y {
if x > y {
return x
}
return y