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Diffstat (limited to 'nuttx/libxx/libxx_newa.cxx')
-rw-r--r-- | nuttx/libxx/libxx_newa.cxx | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/nuttx/libxx/libxx_newa.cxx b/nuttx/libxx/libxx_newa.cxx new file mode 100644 index 000000000..855160c41 --- /dev/null +++ b/nuttx/libxx/libxx_newa.cxx @@ -0,0 +1,102 @@ +//*************************************************************************** +// libxx/libxx_newa.cxx +// +// Copyright (C) 2009 Gregory Nutt. All rights reserved. +// Author: Gregory Nutt <spudmonkey@racsa.co.cr> +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in +// the documentation and/or other materials provided with the +// distribution. +// 3. Neither the name NuttX nor the names of its contributors may be +// used to endorse or promote products derived from this software +// without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +//*************************************************************************** + +//*************************************************************************** +// Included Files +//*************************************************************************** + +#include <nuttx/config.h> +#include <cstddef> +#include <cstdlib> +#include <debug.h> + +//*************************************************************************** +// Definitions +//*************************************************************************** + +//*************************************************************************** +// Private Data +//*************************************************************************** + +//*************************************************************************** +// Operators +//*************************************************************************** + +//*************************************************************************** +// Name: new +// +// NOTE: +// This should take a type of size_t. But size_t has an unknown underlying +// type. In the nuttx sys/types.h header file, size_t is typed as uint32_t +// (which is determined by architecture-specific logic). But the C++ +// compiler may believe that size_t is of a different type resulting in +// compilation errors in the operator. Using the underlying integer type +// instead of size_t seems to resolve the compilation issues. Need to +// REVISIT this. +// +//*************************************************************************** + +//void *operator new[](size_t size) +#ifdef CONFIG_CXX_NEWLONG +void *operator new[](unsigned long nbytes) +#else +void *operator new[](unsigned int nbytes) +#endif +{ + // We have to allocate something + + if (nbytes < 1) + { + nbytes = 1; + } + + // Perform the allocation + + void *alloc = malloc(nbytes); + +#ifdef CONFIG_DEBUG + if (alloc == 0) + { + // Oh my.. we are required to return a valid pointer and + // we cannot throw an exception! We are bad. + + dbg("Failed to allocate\n"); + } +#endif + + // Return the allocated value + + return alloc; +} |