3 files changed, 17 insertions, 23 deletions
diff --git a/src/pkg/container/vector/defs.go b/src/pkg/container/vector/defs.go
index 0607a50c6..7502865c9 100644
--- a/src/pkg/container/vector/defs.go
+++ b/src/pkg/container/vector/defs.go
@@ -62,7 +62,7 @@ func (p *Vector) Do(f func(elem interface{})) {
 
 // Do calls function f for each element of the vector, in order.
 // The behavior of Do is undefined if f changes *p.
-func (p *IntVector) Do(f func(elem interface{})) {
+func (p *IntVector) Do(f func(elem int)) {
 	for _, e := range *p {
 		f(e)
 	}
@@ -71,7 +71,7 @@ func (p *IntVector) Do(f func(elem interface{})) {
 
 // Do calls function f for each element of the vector, in order.
 // The behavior of Do is undefined if f changes *p.
-func (p *StringVector) Do(f func(elem interface{})) {
+func (p *StringVector) Do(f func(elem string)) {
 	for _, e := range *p {
 		f(e)
 	}
diff --git a/src/pkg/container/vector/intvector_test.go b/src/pkg/container/vector/intvector_test.go
index aa536cd16..b8900478b 100644
--- a/src/pkg/container/vector/intvector_test.go
+++ b/src/pkg/container/vector/intvector_test.go
@@ -279,9 +279,8 @@ func TestIntDo(t *testing.T) {
 		a.Set(i, int2IntValue(salt*i))
 	}
 	count := 0
-	a.Do(func(e interface{}) {
-		i := intf2IntValue(e)
-		if i != int2IntValue(count*salt) {
+	a.Do(func(i int) {
+		if i != count*salt {
 			t.Error(tname(a), "value at", count, "should be", count*salt, "not", i)
 		}
 		count++
@@ -295,9 +294,8 @@ func TestIntDo(t *testing.T) {
 		(*b)[i] = int2IntValue(salt * i)
 	}
 	count = 0
-	b.Do(func(e interface{}) {
-		i := intf2IntValue(e)
-		if i != int2IntValue(count*salt) {
+	b.Do(func(i int) {
+		if i != count*salt {
 			t.Error(tname(b), "b) value at", count, "should be", count*salt, "not", i)
 		}
 		count++
@@ -312,9 +310,8 @@ func TestIntDo(t *testing.T) {
 		c[i] = int2IntValue(salt * i)
 	}
 	count = 0
-	c.Do(func(e interface{}) {
-		i := intf2IntValue(e)
-		if i != int2IntValue(count*salt) {
+	c.Do(func(i int) {
+		if i != count*salt {
 			t.Error(tname(c), "c) value at", count, "should be", count*salt, "not", i)
 		}
 		count++
diff --git a/src/pkg/container/vector/stringvector_test.go b/src/pkg/container/vector/stringvector_test.go
index 2a02a7642..5bc8a626b 100644
--- a/src/pkg/container/vector/stringvector_test.go
+++ b/src/pkg/container/vector/stringvector_test.go
@@ -279,10 +279,9 @@ func TestStrDo(t *testing.T) {
 		a.Set(i, int2StrValue(salt*i))
 	}
 	count := 0
-	a.Do(func(e interface{}) {
-		i := intf2StrValue(e)
-		if i != int2StrValue(count*salt) {
-			t.Error(tname(a), "value at", count, "should be", count*salt, "not", i)
+	a.Do(func(s string) {
+		if s != int2StrValue(count*salt) {
+			t.Error(tname(a), "value at", count, "should be", count*salt, "not", s)
 		}
 		count++
 	})
@@ -295,10 +294,9 @@ func TestStrDo(t *testing.T) {
 		(*b)[i] = int2StrValue(salt * i)
 	}
 	count = 0
-	b.Do(func(e interface{}) {
-		i := intf2StrValue(e)
-		if i != int2StrValue(count*salt) {
-			t.Error(tname(b), "b) value at", count, "should be", count*salt, "not", i)
+	b.Do(func(s string) {
+		if s != int2StrValue(count*salt) {
+			t.Error(tname(b), "b) value at", count, "should be", count*salt, "not", s)
 		}
 		count++
 	})
@@ -312,10 +310,9 @@ func TestStrDo(t *testing.T) {
 		c[i] = int2StrValue(salt * i)
 	}
 	count = 0
-	c.Do(func(e interface{}) {
-		i := intf2StrValue(e)
-		if i != int2StrValue(count*salt) {
-			t.Error(tname(c), "c) value at", count, "should be", count*salt, "not", i)
+	c.Do(func(s string) {
+		if s != int2StrValue(count*salt) {
+			t.Error(tname(c), "c) value at", count, "should be", count*salt, "not", s)
 		}
 		count++
 	})