95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
//***************************************************************************
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// libs/libxx/libcxxmini/libxx_newa.cxx
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership. The
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// ASF licenses this file to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance with the
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// License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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//
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//***************************************************************************
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//***************************************************************************
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// Included Files
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//***************************************************************************
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#include <nuttx/config.h>
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#include <assert.h>
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#include <cstddef>
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#include <debug.h>
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#include <nuttx/lib/lib.h>
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//***************************************************************************
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// Pre-processor Definitions
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//***************************************************************************
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//***************************************************************************
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// Private Data
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//***************************************************************************
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//***************************************************************************
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// Operators
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//***************************************************************************
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//***************************************************************************
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// Name: new
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//
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// NOTE:
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// This should take a type of size_t. But size_t has an unknown underlying
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// type. In the nuttx sys/types.h header file, size_t is typed as uint32_t
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// (which is determined by architecture-specific logic). But the C++
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// compiler may believe that size_t is of a different type resulting in
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// compilation errors in the operator. Using the underlying integer type
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// instead of size_t seems to resolve the compilation issues. Need to
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// REVISIT this.
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//
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//***************************************************************************
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FAR void *operator new[](std::size_t nbytes)
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{
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// We have to allocate something
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if (nbytes < 1)
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{
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nbytes = 1;
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}
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// Perform the allocation
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FAR void *alloc = lib_malloc(nbytes);
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#ifdef CONFIG_DEBUG_ERROR
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if (alloc == 0)
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{
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// Oh my.. we are required to return a valid pointer and
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// we cannot throw an exception! We are bad.
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_err("ERROR: Failed to allocate\n");
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}
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#endif
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DEBUGASSERT(alloc != nullptr);
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// Return the allocated value
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return alloc;
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}
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FAR void *operator new[](std::size_t nbytes, FAR void *ptr)
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{
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DEBUGASSERT(ptr != nullptr);
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// Return the ptr pointer
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return ptr;
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}
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