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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// ================================================================================
// Standard primitive types for CLR code
//
// This header serves as a platform layer containing all of the primitive types
// which we use across CLR implementation code.
// ================================================================================
#ifndef CLRTYPES_H_
#define CLRTYPES_H_
#if defined(_MSC_VER) && !defined(SOURCE_FORMATTING) && (!defined(FEATURE_CORECLR) || defined(FEATURE_CORESYSTEM))
// Prefer intsafe.h when available, which defines many of the MAX/MIN
// values below (which is why they are in #ifndef blocks).
#include <intsafe.h>
#endif
#include "crtwrap.h"
#include "winwrap.h"
#include "staticcontract.h"
#include "static_assert.h"
#if _WIN64
#define POINTER_BITS 64
#else
#define POINTER_BITS 32
#endif
// ================================================================================
// Integral types - use these for all integral types
// These types are in ALL_CAPS. Each type has a _MIN and _MAX defined for it.
// ================================================================================
// --------------------------------------------------------------------------------
// Use these types for fixed size integers:
// INT8 UINT8 INT16 UINT16 INT32 UINT32 INT64 UINT64
// --------------------------------------------------------------------------------
#ifndef INT8_MAX
typedef signed char INT8;
typedef unsigned char UINT8;
typedef short INT16;
typedef unsigned short UINT16;
typedef int INT32;
typedef unsigned int UINT32;
typedef __int64 INT64;
typedef unsigned __int64 UINT64;
#ifdef _MSC_VER
/* These macros must exactly match those in the Windows SDK's intsafe.h */
#define INT8_MIN (-127i8 - 1)
#define INT16_MIN (-32767i16 - 1)
#define INT32_MIN (-2147483647i32 - 1)
#define INT64_MIN (-9223372036854775807i64 - 1)
#define INT8_MAX 127i8
#define INT16_MAX 32767i16
#define INT32_MAX 2147483647i32
#define INT64_MAX 9223372036854775807i64
#define UINT8_MAX 0xffui8
#define UINT16_MAX 0xffffui16
#define UINT32_MAX 0xffffffffui32
#define UINT64_MAX 0xffffffffffffffffui64
#else
#define INT8_MIN ((INT8)0x80)
#define INT16_MIN ((INT16)0x8000)
#define INT32_MIN ((INT32)0x80000000)
#define INT64_MIN ((INT64) I64(0x8000000000000000))
#define INT8_MAX ((INT8)0x7f)
#define INT16_MAX ((INT16)0x7fff)
#define INT32_MAX ((INT32)0x7fffffff)
#define INT64_MAX ((INT64) I64(0x7fffffffffffffff))
#define UINT8_MAX ((UINT8)0xffU)
#define UINT16_MAX ((UINT16)0xffffU)
#define UINT32_MAX ((UINT32)0xffffffffU)
#define UINT64_MAX ((UINT64) UI64(0xffffffffffffffff))
#endif
#endif // !INT8_MAX
// UINTX_MINs aren't defined in standard header files,
// so definition must be separately predicated.
#ifndef UINT8_MIN
#ifdef _MSC_VER
#define UINT8_MIN 0ui8
#define UINT16_MIN 0ui16
#define UINT32_MIN 0ui32
#define UINT64_MIN 0ui64
#else
#define UINT8_MIN ((UINT8)0U)
#define UINT16_MIN ((UINT16)0U)
#define UINT32_MIN ((UINT32)0U)
#define UINT64_MIN ((UINT64) UI64(0))
#endif
#endif
// --------------------------------------------------------------------------------
// Use these types for pointer-sized integral types
// SIZE_T SSIZE_T
//
// These types are the ONLY types which can be safely cast back and forth from a
// pointer.
// --------------------------------------------------------------------------------
#ifndef SIZE_T_MAX
#if NEED_POINTER_SIZED_TYPEDEFS
typedef size_t SIZE_T;
typedef ptrdiff_t SSIZE_T;
#endif
#if POINTER_BITS == 64
#define SIZE_T_MAX UINT64_MAX
#define SIZE_T_MIN UINT64_MIN
#define SSIZE_T_MAX INT64_MAX
#define SSIZE_T_MIN INT64_MIN
#else
#define SIZE_T_MAX UINT32_MAX
#define SIZE_T_MIN UINT32_MIN
#define SSIZE_T_MAX INT32_MAX
#define SSIZE_T_MIN INT32_MIN
#endif
#endif
// --------------------------------------------------------------------------------
// Non-pointer sized types
// COUNT_T SCOUNT_T
//
// Use these types for "large" counts or indexes which will not exceed 32 bits. They
// may also be used for pointer differences, if you can guarantee that the pointers
// are pointing to the same region of memory. (It can NOT be used for arbitrary
// pointer subtraction.)
// --------------------------------------------------------------------------------
#ifndef COUNT_T_MAX
typedef UINT32 COUNT_T;
typedef INT32 SCOUNT_T;
#define COUNT_T_MAX UINT32_MAX
#define COUNT_T_MIN UINT32_MIN
#define SCOUNT_T_MAX INT32_MAX
#define SCOUNT_T_MIN INT32_MIN
#endif
// --------------------------------------------------------------------------------
// Integral types with additional semantic content
// BOOL BYTE
// --------------------------------------------------------------------------------
#ifndef BYTE_MAX
#if NEED_BOOL_TYPEDEF
typedef bool BOOL;
#endif
#define BOOL_MAX 1
#define BOOL_MIN 0
#define TRUE 1
#define FALSE 0
typedef UINT8 BYTE;
#define BYTE_MAX UINT8_MAX
#define BYTE_MIN UINT8_MIN
#endif
// --------------------------------------------------------------------------------
// Character types
// CHAR SCHAR UCHAR WCHAR
// --------------------------------------------------------------------------------
typedef char CHAR;
typedef signed char SCHAR;
typedef unsigned char UCHAR;
typedef wchar_t WCHAR;
typedef CHAR ASCII;
typedef CHAR ANSI;
typedef CHAR UTF8;
// Standard C defines:
// CHAR_MAX
// CHAR_MIN
// SCHAR_MAX
// SCHAR_MIN
// UCHAR_MAX
// UCHAR_MIN
// WCHAR_MAX
// WCHAR_MIN
#ifndef ASCII_MAX
#define ASCII_MIN ((ASCII)0)
#define ASCII_MAX ((ASCII)127)
#define ANSI_MIN ((ANSI)0)
#define ANSI_MAX ((ANSI)255)
#define UTF8_MIN ((UTF8)0)
#define UTF8_MAX ((UTF8)255)
#endif
// ================================================================================
// Non-integral types
// These types are in ALL_CAPS.
// ================================================================================
// --------------------------------------------------------------------------------
// Floating point types
// FLOAT DOUBLE
// --------------------------------------------------------------------------------
// ================================================================================
// Runtime type definitions - these are guaranteed to be identical with the
// corresponding managed type
// ================================================================================
typedef WCHAR CLR_CHAR;
typedef INT8 CLR_I1;
typedef UINT8 CLR_U1;
typedef INT16 CLR_I2;
typedef UINT16 CLR_U2;
typedef INT32 CLR_I4;
typedef UINT32 CLR_U4;
typedef INT64 CLR_I8;
typedef UINT64 CLR_U8;
typedef FLOAT CLR_R4;
typedef DOUBLE CLR_R8;
typedef SSIZE_T CLR_I;
typedef SIZE_T CLR_U;
#define CLR_CHAR_MAX WCHAR_MAX
#define CLR_CHAR_MIN WCHAR_MIN
#define CLR_I1_MAX INT8_MAX
#define CLR_I1_MIN INT8_MIN
#define CLR_U1_MAX UINT8_MAX
#define CLR_U1_MIN UINT8_MIN
#define CLR_I2_MAX INT16_MAX
#define CLR_I2_MIN INT16_MIN
#define CLR_U2_MAX UINT16_MAX
#define CLR_U2_MIN UINT16_MIN
#define CLR_I4_MAX INT32_MAX
#define CLR_I4_MIN INT32_MIN
#define CLR_U4_MAX UINT32_MAX
#define CLR_U4_MIN UINT32_MIN
#define CLR_I8_MAX INT64_MAX
#define CLR_I8_MIN INT64_MIN
#define CLR_U8_MAX UINT64_MAX
#define CLR_U8_MIN UINT64_MIN
#define CLR_I_MAX SSIZE_T_MAX
#define CLR_I_MIN SSIZE_T_MIN
#define CLR_U_MAX SIZE_T_MAX
#define CLR_U_MIN SIZE_T_MIN
typedef bool CLR_BOOL;
static_assert_no_msg(sizeof(CLR_BOOL) == 1);
#define CLR_BOOL_MAX BOOL_MAX
#define CLR_BOOL_MIN BOOL_MIN
#define CLR_NAN_32 0xFFC00000
#define CLR_NAN_64 I64(0xFFF8000000000000)
// ================================================================================
// Simple utility functions
// ================================================================================
// Note that these routines are in terms of UINT, ULONG, and ULONG64, since those are
// the unsigned integral types the compiler overloads based on.
// --------------------------------------------------------------------------------
// Min/Max
// --------------------------------------------------------------------------------
template <typename T>
T Min(T v1, T v2)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
return v1 < v2 ? v1 : v2;
}
template <typename T>
T Max(T v1, T v2)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
return v1 > v2 ? v1 : v2;
}
// --------------------------------------------------------------------------------
// Alignment bit twiddling macros - "alignment" must be power of 2
//
// AlignUp - align value to given increment, rounding up
// AlignmentPad - amount adjusted by AlignUp
// AlignUp(value, x) == value + AlignmentPad(value, x)
//
// AlignDown - align value to given increment, rounding down
// AlignmentTrim - amount adjusted by AlignDown
// AlignDown(value, x) == value - AlignmentTrim(value, x)
// --------------------------------------------------------------------------------
inline UINT AlignUp(UINT value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value+alignment-1)&~(alignment-1);
}
#if defined(_MSC_VER)
inline ULONG AlignUp(ULONG value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value+alignment-1)&~(alignment-1);
}
#endif
inline UINT64 AlignUp(UINT64 value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value+alignment-1)&~(UINT64)(alignment-1);
}
inline UINT AlignDown(UINT value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value&~(alignment-1));
}
#if defined(_MSC_VER)
inline ULONG AlignDown(ULONG value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value&~(ULONG)(alignment-1));
}
#endif
inline UINT64 AlignDown(UINT64 value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return (value&~(UINT64)(alignment-1));
}
inline UINT AlignmentPad(UINT value, UINT alignment)
{
STATIC_CONTRACT_WRAPPER;
return AlignUp(value, alignment) - value;
}
#if defined(_MSC_VER)
inline UINT AlignmentPad(ULONG value, UINT alignment)
{
STATIC_CONTRACT_WRAPPER;
return AlignUp(value, alignment) - value;
}
#endif
inline UINT AlignmentPad(UINT64 value, UINT alignment)
{
STATIC_CONTRACT_WRAPPER;
return (UINT) (AlignUp(value, alignment) - value);
}
inline UINT AlignmentTrim(UINT value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return value&(alignment-1);
}
#ifndef PLATFORM_UNIX
// For Unix this and the previous function get the same types.
// So, exclude this one.
inline UINT AlignmentTrim(ULONG value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return value&(alignment-1);
}
#endif // PLATFORM_UNIX
inline UINT AlignmentTrim(UINT64 value, UINT alignment)
{
STATIC_CONTRACT_LEAF;
STATIC_CONTRACT_SO_TOLERANT;
STATIC_CONTRACT_SUPPORTS_DAC;
return ((UINT)value)&(alignment-1);
}
#endif // CLRTYPES_H_
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