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1 : // Copyright 2018 The Cockroach Authors. 2 : // 3 : // Licensed under the Apache License, Version 2.0 (the "License"); 4 : // you may not use this file except in compliance with the License. 5 : // You may obtain a copy of the License at 6 : // 7 : // http://www.apache.org/licenses/LICENSE-2.0 8 : // 9 : // Unless required by applicable law or agreed to in writing, software 10 : // distributed under the License is distributed on an "AS IS" BASIS, 11 : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 12 : // implied. See the License for the specific language governing 13 : // permissions and limitations under the License. 14 : 15 : package rawalloc 16 : 17 : // New returns a new byte slice of the specified length and capacity where the 18 : // backing memory is uninitialized. This differs from make([]byte) which 19 : // guarantees that the backing memory for the slice is initialized to zero. Use 20 : // carefully. 21 2 : func New(len, cap int) []byte { 22 2 : ptr := mallocgc(uintptr(cap), nil, false) 23 2 : return (*[maxArrayLen]byte)(ptr)[:len:cap] 24 2 : }