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ENH: Added FundamentalType header defining platform-independent fixed size/signedness integer types.
This commit is contained in:
Brad King
parent
a5483acc0e
commit
82a8e9be99
@ -82,6 +82,7 @@ IF(KWSYS_STANDALONE OR CMake_SOURCE_DIR)
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SET(KWSYS_USE_RegularExpression 1)
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SET(KWSYS_USE_SystemTools 1)
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SET(KWSYS_USE_CommandLineArguments 1)
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SET(KWSYS_USE_FundamentalType 1)
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ENDIF(KWSYS_STANDALONE OR CMake_SOURCE_DIR)
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#-----------------------------------------------------------------------------
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@ -243,6 +244,78 @@ IF(UNIX)
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"Checking whether struct stat has st_mtim member" DIRECT)
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ENDIF(UNIX)
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IF(KWSYS_USE_FundamentalType)
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# Determine type sizes.
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INCLUDE(CheckTypeSize)
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CHECK_TYPE_SIZE("char" KWSYS_SIZEOF_CHAR)
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CHECK_TYPE_SIZE("short" KWSYS_SIZEOF_SHORT)
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CHECK_TYPE_SIZE("int" KWSYS_SIZEOF_INT)
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CHECK_TYPE_SIZE("long" KWSYS_SIZEOF_LONG)
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CHECK_TYPE_SIZE("long long" KWSYS_SIZEOF_LONG_LONG)
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CHECK_TYPE_SIZE("__int64" KWSYS_SIZEOF___INT64)
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IF(NOT KWSYS_SIZEOF_LONG_LONG)
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SET(KWSYS_SIZEOF_LONG_LONG 0)
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ENDIF(NOT KWSYS_SIZEOF_LONG_LONG)
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IF(NOT KWSYS_SIZEOF___INT64)
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SET(KWSYS_SIZEOF___INT64 0)
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ENDIF(NOT KWSYS_SIZEOF___INT64)
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# Check uniqueness of types.
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IF(KWSYS_SIZEOF___INT64)
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KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_SAME_LONG_AND___INT64
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"Checking whether long and __int64 are the same type" DIRECT)
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IF(KWSYS_SIZEOF_LONG_LONG)
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KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_SAME_LONG_LONG_AND___INT64
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"Checking whether long long and __int64 are the same type" DIRECT)
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ENDIF(KWSYS_SIZEOF_LONG_LONG)
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ENDIF(KWSYS_SIZEOF___INT64)
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# Enable the "long long" type if it is available. It is standard in
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# C99 and C++03 but not in earlier standards.
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IF(KWSYS_SIZEOF_LONG_LONG)
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SET(KWSYS_USE_LONG_LONG 1)
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ELSE(KWSYS_SIZEOF_LONG_LONG)
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SET(KWSYS_USE_LONG_LONG 0)
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ENDIF(KWSYS_SIZEOF_LONG_LONG)
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# Enable the "__int64" type if it is available and unique. It is not
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# standard.
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SET(KWSYS_USE___INT64 0)
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IF(KWSYS_SIZEOF___INT64)
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IF(NOT KWSYS_CXX_SAME_LONG_AND___INT64)
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IF(NOT KWSYS_CXX_SAME_LONG_LONG_AND___INT64)
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SET(KWSYS_USE___INT64 1)
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ENDIF(NOT KWSYS_CXX_SAME_LONG_LONG_AND___INT64)
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ENDIF(NOT KWSYS_CXX_SAME_LONG_AND___INT64)
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ENDIF(KWSYS_SIZEOF___INT64)
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IF(KWSYS_USE___INT64)
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KWSYS_PLATFORM_CXX_TEST(KWSYS_CAN_CONVERT_UI64_TO_DOUBLE
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"Checking whether unsigned __int64 can convert to double" DIRECT)
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ELSE(KWSYS_USE___INT64)
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SET(KWSYS_CAN_CONVERT_UI64_TO_DOUBLE 1)
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ENDIF(KWSYS_USE___INT64)
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# Check signedness of "char" type.
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IF("KWSYS_CHAR_IS_SIGNED" MATCHES "^KWSYS_CHAR_IS_SIGNED$")
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MESSAGE(STATUS "Checking signedness of char")
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TRY_RUN(KWSYS_CHAR_IS_SIGNED KWSYS_CHAR_IS_SIGNED_COMPILED
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/kwsysPlatformCxxTests.cxx
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COMPILE_DEFINITIONS -DTEST_KWSYS_CHAR_IS_SIGNED)
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IF(KWSYS_CHAR_IS_SIGNED_COMPILED)
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IF(KWSYS_CHAR_IS_SIGNED)
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MESSAGE(STATUS "Checking signedness of char -- signed")
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SET(KWSYS_CHAR_IS_SIGNED 1 CACHE INTERNAL "Whether char is signed.")
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ELSE(KWSYS_CHAR_IS_SIGNED)
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MESSAGE(STATUS "Checking signedness of char -- unsigned")
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SET(KWSYS_CHAR_IS_SIGNED 0 CACHE INTERNAL "Whether char is signed.")
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ENDIF(KWSYS_CHAR_IS_SIGNED)
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ELSE(KWSYS_CHAR_IS_SIGNED_COMPILED)
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MESSAGE(FATAL_ERROR "Checking signedness of char -- failed")
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ENDIF(KWSYS_CHAR_IS_SIGNED_COMPILED)
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ENDIF("KWSYS_CHAR_IS_SIGNED" MATCHES "^KWSYS_CHAR_IS_SIGNED$")
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ENDIF(KWSYS_USE_FundamentalType)
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IF(KWSYS_NAMESPACE MATCHES "^kwsys$")
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SET(KWSYS_NAME_IS_KWSYS 1)
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ELSE(KWSYS_NAMESPACE MATCHES "^kwsys$")
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@ -343,7 +416,7 @@ FOREACH(c Directory RegularExpression SystemTools CommandLineArguments)
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ENDFOREACH(c)
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# Add selected C components.
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FOREACH(c Process Base64)
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FOREACH(c Process Base64 FundamentalType)
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IF(KWSYS_USE_${c})
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SET(KWSYS_H_FILES ${KWSYS_H_FILES} ${c})
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ENDIF(KWSYS_USE_${c})
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143
Source/kwsys/FundamentalType.h.in
Normal file
143
Source/kwsys/FundamentalType.h.in
Normal file
@ -0,0 +1,143 @@
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/*=========================================================================
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Program: KWSys - Kitware System Library
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Module: $RCSfile$
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Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef @KWSYS_NAMESPACE@_FundamentalType_h
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#define @KWSYS_NAMESPACE@_FundamentalType_h
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#include <@KWSYS_NAMESPACE@/Configure.h>
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/* Redefine all public interface symbol names to be in the proper
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namespace. These macros are used internally to kwsys only, and are
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not visible to user code. Use kwsysHeaderDump.pl to reproduce
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these macros after making changes to the interface. */
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#if !defined(KWSYS_NAMESPACE)
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# define kwsys_ns(x) @KWSYS_NAMESPACE@##x
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# define kwsysEXPORT @KWSYS_NAMESPACE@_EXPORT
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#endif
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#define kwsysFundamentalType kwsys_ns(FundamentalType)
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#define kwsysFundamentalType_Int8 kwsys_ns(FundamentalType_Int8)
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#define kwsysFundamentalType_UInt8 kwsys_ns(FundamentalType_UInt8)
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#define kwsysFundamentalType_Int16 kwsys_ns(FundamentalType_Int16)
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#define kwsysFundamentalType_UInt16 kwsys_ns(FundamentalType_UInt16)
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#define kwsysFundamentalType_Int32 kwsys_ns(FundamentalType_Int32)
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#define kwsysFundamentalType_UInt32 kwsys_ns(FundamentalType_UInt32)
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#define kwsysFundamentalType_Int64 kwsys_ns(FundamentalType_Int64)
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#define kwsysFundamentalType_UInt64 kwsys_ns(FundamentalType_UInt64)
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/* The size of fundamental types. Types that do not exist have size 0. */
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#define @KWSYS_NAMESPACE@_SIZEOF_CHAR @KWSYS_SIZEOF_CHAR@
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#define @KWSYS_NAMESPACE@_SIZEOF_SHORT @KWSYS_SIZEOF_SHORT@
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#define @KWSYS_NAMESPACE@_SIZEOF_INT @KWSYS_SIZEOF_INT@
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#define @KWSYS_NAMESPACE@_SIZEOF_LONG @KWSYS_SIZEOF_LONG@
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#define @KWSYS_NAMESPACE@_SIZEOF_LONG_LONG @KWSYS_SIZEOF_LONG_LONG@
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#define @KWSYS_NAMESPACE@_SIZEOF___INT64 @KWSYS_SIZEOF___INT64@
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/* Whether types "long long" and "__int64" are enabled. If a type is
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enabled then it is a unique fundamental type. */
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#define @KWSYS_NAMESPACE@_USE_LONG_LONG @KWSYS_USE_LONG_LONG@
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#define @KWSYS_NAMESPACE@_USE___INT64 @KWSYS_USE___INT64@
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/* Whether type "char" is signed (it may be signed or unsigned). */
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#define @KWSYS_NAMESPACE@_CHAR_IS_SIGNED @KWSYS_CHAR_IS_SIGNED@
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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/* Select an 8-bit integer type. */
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#if @KWSYS_NAMESPACE@_SIZEOF_CHAR == 1
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typedef signed char kwsysFundamentalType_Int8;
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typedef unsigned char kwsysFundamentalType_UInt8;
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#else
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# error "No native data type can represent an 8-bit integer."
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#endif
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/* Select a 16-bit integer type. */
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#if @KWSYS_NAMESPACE@_SIZEOF_SHORT == 2
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typedef short kwsysFundamentalType_Int16;
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typedef unsigned short kwsysFundamentalType_UInt16;
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#elif @KWSYS_NAMESPACE@_SIZEOF_INT == 2
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typedef int kwsysFundamentalType_Int16;
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typedef unsigned int kwsysFundamentalType_UInt16;
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#else
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# error "No native data type can represent a 16-bit integer."
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#endif
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/* Select a 32-bit integer type. */
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#if @KWSYS_NAMESPACE@_SIZEOF_INT == 4
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typedef int kwsysFundamentalType_Int32;
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typedef unsigned int kwsysFundamentalType_UInt32;
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#elif @KWSYS_NAMESPACE@_SIZEOF_LONG == 4
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typedef long kwsysFundamentalType_Int32;
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typedef unsigned long kwsysFundamentalType_UInt32;
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#else
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# error "No native data type can represent a 32-bit integer."
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#endif
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/* Select a 64-bit integer type. */
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#if @KWSYS_NAMESPACE@_SIZEOF_LONG == 8
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typedef signed long kwsysFundamentalType_Int64;
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typedef unsigned long kwsysFundamentalType_UInt64;
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/* Whether UInt64 can be converted to double. */
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# define @KWSYS_NAMESPACE@_CAN_CONVERT_UI64_TO_DOUBLE 1
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#elif @KWSYS_NAMESPACE@_USE_LONG_LONG && @KWSYS_NAMESPACE@_SIZEOF_LONG_LONG == 8
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typedef signed long long kwsysFundamentalType_Int64;
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typedef unsigned long long kwsysFundamentalType_UInt64;
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/* Whether UInt64 can be converted to double. */
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# define @KWSYS_NAMESPACE@_CAN_CONVERT_UI64_TO_DOUBLE 1
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#elif @KWSYS_NAMESPACE@_USE___INT64 && @KWSYS_NAMESPACE@_SIZEOF___INT64 == 8
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typedef signed __int64 kwsysFundamentalType_Int64;
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typedef unsigned __int64 kwsysFundamentalType_UInt64;
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/* Whether UInt64 can be converted to double. */
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# define @KWSYS_NAMESPACE@_CAN_CONVERT_UI64_TO_DOUBLE @KWSYS_CAN_CONVERT_UI64_TO_DOUBLE@
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#else
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# error "No native data type can represent a 64-bit integer."
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#endif
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#if defined(__cplusplus)
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} /* extern "C" */
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#endif
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/* If we are building a kwsys .c or .cxx file, let it use these macros.
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Otherwise, undefine them to keep the namespace clean. */
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#if !defined(KWSYS_NAMESPACE)
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# undef kwsys_ns
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# undef kwsysEXPORT
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# undef kwsysFundamentalType
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# undef kwsysFundamentalType_Int8
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# undef kwsysFundamentalType_UInt8
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# undef kwsysFundamentalType_Int16
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# undef kwsysFundamentalType_UInt16
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# undef kwsysFundamentalType_Int32
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# undef kwsysFundamentalType_UInt32
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# undef kwsysFundamentalType_Int64
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# undef kwsysFundamentalType_UInt64
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#endif
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/* If building a C or C++ file in kwsys itself, give the source file
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access to the configured macros without a configured namespace. */
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#if defined(KWSYS_NAMESPACE)
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# define KWSYS_SIZEOF_CHAR @KWSYS_NAMESPACE@_SIZEOF_CHAR
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# define KWSYS_SIZEOF_SHORT @KWSYS_NAMESPACE@_SIZEOF_SHORT
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# define KWSYS_SIZEOF_INT @KWSYS_NAMESPACE@_SIZEOF_INT
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# define KWSYS_SIZEOF_LONG @KWSYS_NAMESPACE@_SIZEOF_LONG
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# define KWSYS_SIZEOF_LONG_LONG @KWSYS_NAMESPACE@_SIZEOF_LONG_LONG
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# define KWSYS_SIZEOF___INT64 @KWSYS_NAMESPACE@_SIZEOF___INT64
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# define KWSYS_USE_LONG_LONG @KWSYS_NAMESPACE@_USE_LONG_LONG
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# define KWSYS_USE___INT64 @KWSYS_NAMESPACE@_USE___INT64
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# define KWSYS_CHAR_IS_SIGNED @KWSYS_NAMESPACE@_CHAR_IS_SIGNED
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# define KWSYS_CAN_CONVERT_UI64_TO_DOUBLE @KWSYS_NAMESPACE@_CAN_CONVERT_UI64_TO_DOUBLE
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#endif
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#endif
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