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7a73b80b90
system. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7014 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
//===-- include/Support/DataTypes.h - Define fixed size types ----*- C++ -*--=//
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//
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// This file contains definitions to figure out the size of _HOST_ data types.
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// This file is important because different host OS's define different macros,
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// which makes portability tough. This file exports the following definitions:
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//
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// ENDIAN_LITTLE : is #define'd if the host is little endian
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// int64_t : is a typedef for the signed 64 bit system type
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// uint64_t : is a typedef for the unsigned 64 bit system type
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// INT64_MAX : is a #define specifying the max value for int64_t's
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//
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// No library is required when using these functinons.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SUPPORT_DATATYPES_H
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#define SUPPORT_DATATYPES_H
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#include "Config/config.h"
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#define __STDC_LIMIT_MACROS 1
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if (defined(ENDIAN_LITTLE) && defined(ENDIAN_BIG))
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#error "Cannot define both ENDIAN_LITTLE and ENDIAN_BIG!"
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#endif
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#if (!defined(ENDIAN_LITTLE) && !defined(ENDIAN_BIG)) || !defined(INT64_MAX)
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#error "include/Support/DataTypes.h could not determine endianness!"
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#endif
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#endif /* SUPPORT_DATATYPES_H */
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