ByteBuffer.Truncate(n int)
R=r
DELTA=22 (17 added, 0 deleted, 5 changed)
OCL=28781
CL=28815
diff --git a/src/lib/io/bytebuffer.go b/src/lib/io/bytebuffer.go
index 011166e..88371c4 100644
--- a/src/lib/io/bytebuffer.go
+++ b/src/lib/io/bytebuffer.go
@@ -39,9 +39,17 @@
return len(b.buf) - b.off
}
+// Truncates the buffer so it contains n bytes.
+// It preserves the data in the buffer at positions [0 : n].
+// It is an error to call b.Truncate(n) with n > b.Len().
+func (b *ByteBuffer) Truncate(n int) {
+ b.buf = b.buf[0 : b.off + n];
+}
+
// Reset resets the buffer so it has no content.
+// b.Reset() is the same as b.Truncate(0).
func (b *ByteBuffer) Reset() {
- b.off = len(b.buf)
+ b.buf = b.buf[0 : b.off];
}
// Write appends the contents of p to the buffer. The return
