lambda_blocks.h

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/*
* Copyright (c) 2008-2009 Apple Inc. All rights reserved.
* Copyright (c) 2011-2012 MLBA-Team. All rights reserved.
*
* @MLBA_OPEN_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 
*     http://www.apache.org/licenses/LICENSE-2.0
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @MLBA_OPEN_LICENSE_HEADER_END@
*/


/* When building on 10.6 with gcc 4.5.1 we can bypass
    Apple's lambda functions implementation in C++ as we have lambdas.
       This prevents a lot of errors from occuring
       */

#ifndef XDISPATCH_LAMBDA_BLOCKS_H_
#define XDISPATCH_LAMBDA_BLOCKS_H_

#ifndef __XDISPATCH_INDIRECT__
#error "Please #include <xdispatch/dispatch.h> instead of this file directly."
#endif

#ifndef XDISPATCH_DOXYGEN_RUN

// clang 2.0, gcc 4.3 from mac os 10.6
#ifdef __BLOCKS__
# include <Block.h>
# include <stddef.h>
# define XDISPATCH_BLOCK ^
# ifndef XDISPATCH_NO_KEYWORDS
#  define $ ^
# endif // XDISPATCH_NO_KEYWORDS
  //typedef void (^dispatch_block_t)(void);
 typedef void (^dispatch_iteration_block_t)(size_t);
# define XDISPATCH_HAS_BLOCKS 1
# if defined(__cplusplus) && !defined(__clang__)
#  warning "Sadly blocks are currently broken in C++ on this platform, we recommend using gcc 4.5.1 or clang 2.0 instead"
# endif
#endif // __BLOCKS__

// visual studio 2010
#if _MSC_VER >= 1600

# include <functional>
# define XDISPATCH_BLOCK [=]
# ifndef XDISPATCH_NO_KEYWORDS
#  define $ [=]
# endif

__XDISPATCH_BEGIN_NAMESPACE
 typedef ::std::tr1::function< void (void) > lambda_function;
 typedef ::std::tr1::function< void (size_t) > iteration_lambda_function;
__XDISPATCH_END_NAMESPACE

# define XDISPATCH_HAS_LAMBDAS 1
# define XDISPATCH_HAS_FUNCTION 1

// visual studio 2008 sp1
#elif _MSC_VER >= 1500

# include <functional>

__XDISPATCH_BEGIN_NAMESPACE
 typedef ::std::tr1::function< void (void) > lambda_function;
 typedef ::std::tr1::function< void (size_t) > iteration_lambda_function;
__XDISPATCH_END_NAMESPACE

# define XDISPATCH_HAS_FUNCTION 1

// g++,clang++ / gnu compiler collection
#elif defined(__GNUC__) || defined(__clang__)

// gcc 4.5 with c++0x enabled
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
#  ifndef XDISPATCH_HAS_BLOCKS
#   define XDISPATCH_BLOCK [=]
#   ifndef XDISPATCH_NO_KEYWORDS
#    define $ [=]
#   endif // XDISPATCH_NO_KEYWORDS
#  endif // XDISPATCH_HAS_BLOCKS
#  define XDISPATCH_HAS_LAMBDAS 1
# endif // __GXX_EXPERIMENTAL_CXX0X__

#  include <tr1/functional>

__XDISPATCH_BEGIN_NAMESPACE
 typedef ::std::tr1::function< void (void) > lambda_function;
 typedef ::std::tr1::function< void (size_t) > iteration_lambda_function;
__XDISPATCH_END_NAMESPACE

# define XDISPATCH_HAS_FUNCTION 1

#else

# error "Unsupported compiler version"

#endif

#endif /* XDISPATCH_DOXYGEN_RUN */

#ifdef XDISPATCH_DOXYGEN_RUN
# define $ [=]
#endif

#endif /* XDISPATCH_LAMBDA_BLOCKS_H_ */