mirror of
https://github.com/processhacker/phnt
synced 2026-06-08 16:49:04 +00:00
Johnny Shaw
567 lines
10 KiB
C
567 lines
10 KiB
C
/*
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* Integer literal/constant support macros for typesafe integer types.
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*
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* This file is part of System Informer.
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*/
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//
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// Typed integer literal macros with MSVC compiler extensions and C99 portable fallbacks.
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//
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// MSVC: Employs Microsoft integer literal suffixes (i8/ui8, i16/ui16, i32/ui32,
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// i64/ui64, i128/ui128) to enforce type correctness at compile time.
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// Example: UINT16_C(42) produces a uint16_t constant.
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//
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// Non-MSVC: Standard typed literal syntax unavailable. Macros are pass-through for
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// smaller types (relying on type inference) or use standard C suffixes
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// (U, ULL, LL) for larger types. Trade-off: reduced type checking; casts
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// may suppress compile-time diagnostics for overflow/truncation.
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//
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// Naming: "_C" suffix conforms to C99 conventions (INT32_C, UINT64_C, etc.)
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//
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// Organization (sorted by size, then logical grouping):
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//
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// 1. Boolean type - (1 byte) (C89/C99)
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// 2. Character types - (1-2 bytes) (C89/C99)
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// 3. Short types - (2 bytes) (C89/C99)
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// 4. Half-pointer types - (2-4 bytes) (Windows-specific)
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// 5. Int types - (4 bytes) (C89/C99)
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// 6. Long types - (4-8 bytes) (C89/C99)
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// 7. Floating-point types - (4-8 bytes) (C89/C99)
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// 8. NT cardinal types - (2-4 bytes) (Windows NT-specific)
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// 9. Pointer-sized types - (4-8 bytes) (C99 + platform-dependent)
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// 10. Standard C99 fixed-width types - (1-8 bytes) (C99 core)
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// 11. Windows-specific types - (1-8 bytes) (Windows API)
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// 12. 128-bit integer types - (16 bytes) (MSVC extension)
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#ifndef _NTTYPESAFE_H_INCLUDED_
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#define _NTTYPESAFE_H_INCLUDED_
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#include <stdint.h>
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//
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// Boolean type - (1 byte) (C89/C99)
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//
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#ifndef BOOLEAN_C
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#if defined(_MSC_VER)
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#define BOOLEAN_C(x) (x##ui8)
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#else
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#define BOOLEAN_C(x) (x)
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#endif
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#endif
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//
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// Character types - (1-2 bytes) (C89/C99)
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//
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#ifndef CHAR_C
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#if defined(_MSC_VER)
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#define CHAR_C(x) (x##i8)
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#else
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#define CHAR_C(x) (x)
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#endif
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#endif
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#ifndef CCHAR_C
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#if defined(_MSC_VER)
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#define CCHAR_C(x) (x##i8)
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#else
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#define CCHAR_C(x) (x)
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#endif
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#endif
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#ifndef UCHAR_C
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#if defined(_MSC_VER)
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#define UCHAR_C(x) (x##ui8)
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#else
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#define UCHAR_C(x) (x)
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#endif
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#endif
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#ifndef WCHAR_C
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#if defined(_MSC_VER)
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#define WCHAR_C(x) (x##ui16)
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#else
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#define WCHAR_C(x) (x)
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#endif
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#endif
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//
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// Short types - (2 bytes) (C89/C99)
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//
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#ifndef SHORT_C
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#if defined(_MSC_VER)
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#define SHORT_C(x) (x##i16)
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#else
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#define SHORT_C(x) (x)
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#endif
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#endif
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#ifndef USHORT_C
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#if defined(_MSC_VER)
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#define USHORT_C(x) (x##ui16)
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#else
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#define USHORT_C(x) (x)
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#endif
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#endif
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#ifndef WORD_C
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#if defined(_MSC_VER)
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#define WORD_C(x) (x##ui16)
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#else
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#define WORD_C(x) (x)
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#endif
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#endif
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//
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// Half-pointer types - (2-4 bytes) (Windows-specific)
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// 32-bit on 64-bit platforms, 16-bit on 32-bit platforms
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//
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#ifndef HALF_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define HALF_PTR_C(x) (x##i32)
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#else
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#define HALF_PTR_C(x) (x)
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#endif
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#else
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#if defined(_MSC_VER)
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#define HALF_PTR_C(x) (x##i16)
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#else
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#define HALF_PTR_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef UHALF_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define UHALF_PTR_C(x) (x##ui32)
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#else
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#define UHALF_PTR_C(x) (x##U)
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#endif
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#else
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#if defined(_MSC_VER)
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#define UHALF_PTR_C(x) (x##ui16)
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#else
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#define UHALF_PTR_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef PHALF_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define PHALF_PTR_C(x) (x##i32)
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#else
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#define PHALF_PTR_C(x) (x)
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#endif
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#else
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#if defined(_MSC_VER)
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#define PHALF_PTR_C(x) (x##i16)
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#else
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#define PHALF_PTR_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef PUHALF_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define PUHALF_PTR_C(x) (x##ui32)
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#else
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#define PUHALF_PTR_C(x) (x##U)
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#endif
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#else
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#if defined(_MSC_VER)
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#define PUHALF_PTR_C(x) (x##ui16)
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#else
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#define PUHALF_PTR_C(x) (x)
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#endif
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#endif
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#endif
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//
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// Int types - (4 bytes) (C89/C99)
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//
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#ifndef INT_C
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#if defined(_MSC_VER)
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#define INT_C(x) (x##i32)
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#else
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#define INT_C(x) (x)
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#endif
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#endif
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#ifndef UINT_C
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#if defined(_MSC_VER)
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#define UINT_C(x) (x##ui32)
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#else
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#define UINT_C(x) (x##U)
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#endif
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#endif
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//
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// Long types - (4-8 bytes) (C89/C99)
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//
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#ifndef LONG_C
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#if defined(_MSC_VER)
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#define LONG_C(x) (x##i32)
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#else
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#define LONG_C(x) (x)
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#endif
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#endif
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#ifndef LONG32_C
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#if defined(_MSC_VER)
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#define LONG32_C(x) (x##i32)
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#else
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#define LONG32_C(x) (x)
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#endif
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#endif
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#ifndef LONG64_C
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#if defined(_MSC_VER)
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#define LONG64_C(x) (x##i64)
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#else
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#define LONG64_C(x) (x##LL)
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#endif
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#endif
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#ifndef LONGLONG_C
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#if defined(_MSC_VER)
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#define LONGLONG_C(x) (x##i64)
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#else
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#define LONGLONG_C(x) (x##LL)
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#endif
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#endif
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#ifndef ULONG_C
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#if defined(_MSC_VER)
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#define ULONG_C(x) (x##ui32)
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#else
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#define ULONG_C(x) (x##U)
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#endif
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#endif
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#ifndef ULONG32_C
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#if defined(_MSC_VER)
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#define ULONG32_C(x) (x##ui32)
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#else
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#define ULONG32_C(x) (x##U)
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#endif
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#endif
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#ifndef ULONG64_C
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#if defined(_MSC_VER)
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#define ULONG64_C(x) (x##ui64)
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#else
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#define ULONG64_C(x) (x##ULL)
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#endif
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#endif
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#ifndef ULONGLONG_C
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#if defined(_MSC_VER)
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#define ULONGLONG_C(x) (x##ui64)
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#else
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#define ULONGLONG_C(x) (x##ULL)
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#endif
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#endif
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//
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// Floating-point types - (4-8 bytes) (C89/C99)
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//
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#ifndef FLOAT_C
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#define FLOAT_C(x) (x##f)
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#endif
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#ifndef DOUBLE_C
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#if defined(_MSC_VER)
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#define DOUBLE_C(x) (x##.0)
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#else
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#define DOUBLE_C(x) (x)
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#endif
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#endif
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//
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// NT cardinal types - (2-4 bytes) (Windows NT-specific)
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// Counted/cardinal types from NT native subsystem with 'C' prefix
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//
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#ifndef CSHORT_C
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#if defined(_MSC_VER)
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#define CSHORT_C(x) (x##i16)
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#else
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#define CSHORT_C(x) (x)
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#endif
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#endif
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#ifndef CLONG_C
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#if defined(_MSC_VER)
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#define CLONG_C(x) (x##ui32)
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#else
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#define CLONG_C(x) (x##U)
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#endif
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#endif
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#ifndef LOGICAL_C
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#if defined(_MSC_VER)
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#define LOGICAL_C(x) (x##ui32)
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#else
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#define LOGICAL_C(x) (x##U)
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#endif
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#endif
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//
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// Pointer-sized types - (4-8 bytes) (C99 + platform-dependent)
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// Vary between 32-bit and 64-bit platforms
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//
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#ifndef INT_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define INT_PTR_C(x) (x##i64)
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#else
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#define INT_PTR_C(x) (x##LL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define INT_PTR_C(x) (x##i32)
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#else
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#define INT_PTR_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef UINT_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define UINT_PTR_C(x) (x##ui64)
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#else
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#define UINT_PTR_C(x) (x##ULL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define UINT_PTR_C(x) (x##ui32)
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#else
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#define UINT_PTR_C(x) (x##U)
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#endif
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#endif
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#endif
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#ifndef LONG_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define LONG_PTR_C(x) (x##i64)
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#else
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#define LONG_PTR_C(x) (x##LL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define LONG_PTR_C(x) (x##i32)
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#else
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#define LONG_PTR_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef ULONG_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define ULONG_PTR_C(x) (x##ui64)
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#else
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#define ULONG_PTR_C(x) (x##ULL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define ULONG_PTR_C(x) (x##ui32)
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#else
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#define ULONG_PTR_C(x) (x##U)
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#endif
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#endif
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#endif
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#ifndef SIZE_T_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define SIZE_T_C(x) (x##ui64)
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#else
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#define SIZE_T_C(x) (x##ULL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define SIZE_T_C(x) (x##ui32)
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#else
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#define SIZE_T_C(x) (x##U)
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#endif
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#endif
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#endif
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#ifndef SSIZE_T_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define SSIZE_T_C(x) (x##i64)
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#else
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#define SSIZE_T_C(x) (x##LL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define SSIZE_T_C(x) (x##i32)
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#else
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#define SSIZE_T_C(x) (x)
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#endif
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#endif
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#endif
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#ifndef PTRDIFF_T_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define PTRDIFF_T_C(x) (x##i64)
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#else
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#define PTRDIFF_T_C(x) (x##LL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define PTRDIFF_T_C(x) (x##i32)
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#else
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#define PTRDIFF_T_C(x) (x)
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#endif
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#endif
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#endif
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//
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// Standard C99 fixed-width integer types - (1-8 bytes) (C99 core)
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// Redefine with MSVC extensions for better type safety
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//
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#undef INT8_C
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#undef UINT8_C
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#undef INT16_C
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#undef UINT16_C
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#undef INT32_C
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#undef UINT32_C
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#undef INT64_C
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#undef UINT64_C
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#undef INTMAX_C
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#undef UINTMAX_C
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#if defined(_MSC_VER)
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#define INT8_C(x) (x##i8)
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#define UINT8_C(x) (x##ui8)
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#define INT16_C(x) (x##i16)
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#define UINT16_C(x) (x##ui16)
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#define INT32_C(x) (x##i32)
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#define UINT32_C(x) (x##ui32)
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#define INT64_C(x) (x##i64)
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#define UINT64_C(x) (x##ui64)
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#define INTMAX_C(x) (x##i64)
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#define UINTMAX_C(x) (x##ui64)
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#else
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#define INT8_C(x) (x)
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#define UINT8_C(x) (x)
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#define INT16_C(x) (x)
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#define UINT16_C(x) (x)
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#define INT32_C(x) (x)
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#define UINT32_C(x) (x##U)
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#define INT64_C(x) (x##LL)
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#define UINT64_C(x) (x##ULL)
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#define INTMAX_C(x) (x##LL)
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#define UINTMAX_C(x) (x##ULL)
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#endif
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//
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// Windows-specific types - (1-8 bytes) (Windows API)
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//
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#ifndef BYTE_C
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#if defined(_MSC_VER)
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#define BYTE_C(x) (x##ui8)
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#else
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#define BYTE_C(x) (x)
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#endif
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#endif
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#ifndef DWORD_C
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#if defined(_MSC_VER)
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#define DWORD_C(x) (x##ui32)
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#else
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#define DWORD_C(x) (x##U)
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#endif
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#endif
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#ifndef DWORD32_C
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#if defined(_MSC_VER)
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#define DWORD32_C(x) (x##ui32)
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#else
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#define DWORD32_C(x) (x##U)
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#endif
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#endif
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#ifndef DWORD64_C
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#if defined(_MSC_VER)
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#define DWORD64_C(x) (x##ui64)
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#else
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#define DWORD64_C(x) (x##ULL)
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#endif
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#endif
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#ifndef DWORDLONG_C
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#if defined(_MSC_VER)
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#define DWORDLONG_C(x) (x##ui64)
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#else
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#define DWORDLONG_C(x) (x##ULL)
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#endif
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#endif
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#ifndef DWORD_PTR_C
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#ifdef _WIN64
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#if defined(_MSC_VER)
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#define DWORD_PTR_C(x) (x##ui64)
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#else
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#define DWORD_PTR_C(x) (x##ULL)
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#endif
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#else
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#if defined(_MSC_VER)
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#define DWORD_PTR_C(x) (x##ui32)
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#else
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#define DWORD_PTR_C(x) (x##U)
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#endif
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#endif
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#endif
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#ifndef QWORD_C
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#if defined(_MSC_VER)
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#define QWORD_C(x) (x##ui64)
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#else
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#define QWORD_C(x) (x##ULL)
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#endif
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#endif
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//
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// 128-bit integer types - (16 bytes) (MSVC extension)
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//
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#ifndef INT128_C
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#if defined(_MSC_VER)
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#define INT128_C(x) (x##i128)
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#else
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// 128-bit literals not supported on non-MSVC, use cast as fallback
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#define INT128_C(x) ((__int128)(x##LL))
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#endif
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#endif
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#ifndef UINT128_C
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#if defined(_MSC_VER)
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#define UINT128_C(x) (x##ui128)
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#else
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// 128-bit literals not supported on non-MSVC, use cast as fallback
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#define UINT128_C(x) ((unsigned __int128)(x##ULL))
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#endif
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#endif
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#endif /* _NTTYPESAFE_H_INCLUDED_ */
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