proton-c/include/proton/type_compat.h

#ifndef PROTON_TYPE_COMPAT_H
#define PROTON_TYPE_COMPAT_H 1

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 *
 */

// Get Boolean
#if !defined(__cplusplus) && !defined(__bool_true_false_are_defined)
# if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 || _MSC_VER >=1800
#  include <stdbool.h>
# else
// Need to get bool/true/false manually
#  if _MSC_VER
#   define bool char
#   define false 0
#   define true 1
#   define __bool_true_false_are_defined
#  else
#   error "No definitions for bool/true/false"
#  endif
# endif
#endif
/*
 * Handle special cases for stdint.h and the definition for ssize_t.
 * Third party libraries (e.g. Boost) may provide competing solutions.
 *
 * The effects of this include file may be controlled by overrides:
 *  PN_DEFINE_STDINT/PN_NODEFINE_STDINT   : turn on/off definition of int64_t etc.
 *  PN_DEFINE_SSIZE_T/PN_NODEFINE_SSIZE_T : turn on/off definition of ssize_t
 *  PN_INCLUDE_STDINT/PN_NOINCLUDE_STDINT : include (or not) stdint.h
 */

// Honor positive overrides
#if defined(PN_DEFINE_STDINT)
# define PNI_DEFINE_STDINT
#endif
#if defined(PN_INCLUDE_STDINT)
# define PNI_INCLUDE_STDINT)
#endif
#if defined(PN_DEFINE_SSIZE_T)
# define PNI_DEFINE_SSIZE_T
#endif

// Determinine default action
#ifndef _MSC_VER
// Not Windows and not using Visual Studio

/* MBED_BUILD_TIMESTAMP is used to detect whether Proton is being built on www.mbed.org with
the ARM compiler. In that case ssize_t needs to be defined in this file. */
#if defined(MBED_BUILD_TIMESTAMP)
#  define PNI_DEFINE_SSIZE_T
#else
#include <sys/types.h>
#endif /* defined(MBED_LIBRARY_VERSION) */

# ifndef PNI_INCLUDE_STDINT
#  define PNI_INCLUDE_STDINT
# endif
#else
// all versions of Visual Studio
# ifndef PNI_DEFINE_SSIZE_T
// ssize_t def is needed, unless third party definition interferes, e.g. python/swig
#  ifndef Py_CONFIG_H
#   define PNI_DEFINE_SSIZE_T
#  endif
# endif

# if (_MSC_VER < 1600)
// VS 2008 and earlier
#  ifndef PNI_DEFINE_STDINT
#   define PNI_DEFINE_STDINT
#  endif
# else
// VS 2010 and newer
#  ifndef PNI_INCLUDE_STDINT
#   define PNI_INCLUDE_STDINT
#  endif

# endif // (_MSC_VER < 1600)
#endif //_MSC_VER

// Honor negative overrides
#ifdef PN_NODEFINE_SSIZE_T
# undef PNI_DEFINE_SSIZE_T
#endif
#ifdef PN_NODEFINE_STDINT
# undef PNI_DEFINE_STDINT
#endif
#ifdef PN_NOINCLUDE_STDINT
# undef PNI_INCLUDE_STDINT
#endif

#ifdef PNI_INCLUDE_STDINT
# include <stdint.h>
#endif

#ifdef PNI_DEFINE_SSIZE_T
# ifdef _MSC_VER
#  include <BaseTsd.h>
typedef SSIZE_T ssize_t;
# else
typedef intptr_t ssize_t;
# endif
#endif // PNI_DEFINE_SSIZE_T

#ifdef PNI_DEFINE_STDINT
# ifdef _MSC_VER

typedef signed __int8 int8_t;
typedef signed __int16 int16_t;
typedef signed __int32 int32_t;
typedef signed __int64 int64_t;

typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;

# else // _MSC_VER
#  error stdint.h definitions not kown
# endif
#endif // PNI_DEFINE_SSIZE_T

#endif /* type_compat.h */