144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
#ifndef __DTYPES_H_
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#define __DTYPES_H_
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/*
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This file defines sane integer types for our target platforms. This
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library only runs on machines with the following characteristics:
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- supports integer word sizes of 8, 16, 32, and 64 bits
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- uses unsigned and signed 2's complement representations
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- all pointer types are the same size
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- there is an integer type with the same size as a pointer
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Some features require:
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- IEEE 754 single- and double-precision floating point
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We assume the LP64 convention for 64-bit platforms.
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*/
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#include "config.h"
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typedef int bool_t;
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/* unfortunately we can't make this an enum, since false is an invalid
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enum label in C++ (since it's a keyword) */
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#define false (0)
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#define true (1)
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#if defined(__INTEL_COMPILER) && defined(WIN32)
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# define STATIC_INLINE static
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# define INLINE
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# ifdef BITS64
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typedef unsigned long size_t;
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# else
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typedef unsigned int size_t;
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# endif
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#else
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# define STATIC_INLINE static inline
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# define INLINE inline
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#endif
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typedef unsigned char byte_t; /* 1 byte */
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#if defined(WIN32)
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typedef short int16_t;
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typedef int int32_t;
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typedef long long int64_t;
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typedef unsigned char u_int8_t;
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typedef unsigned short u_int16_t;
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typedef unsigned int u_int32_t;
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#ifdef BITS64
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typedef unsigned long u_int64_t;
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#else
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typedef unsigned long long u_int64_t;
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#endif
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#ifdef __INTEL_COMPILER
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typedef signed char int8_t;
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typedef short int16_t;
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typedef int int32_t;
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#endif
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#else
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#include <sys/types.h>
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#endif
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#ifdef BITS64
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#define TOP_BIT 0x8000000000000000
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#define NBITS 64
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typedef unsigned long uint_t; // preferred int type on platform
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typedef long int_t;
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typedef int64_t offset_t;
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typedef u_int64_t index_t;
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typedef int64_t ptrint_t; // pointer-size int
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typedef u_int64_t u_ptrint_t
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#else
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#define TOP_BIT 0x80000000
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#define NBITS 32
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typedef unsigned long uint_t;
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typedef long int_t;
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typedef int32_t offset_t;
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typedef u_int32_t index_t;
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typedef int32_t ptrint_t;
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typedef u_int32_t u_ptrint_t;
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#endif
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typedef u_int8_t uint8_t;
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typedef u_int16_t uint16_t;
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typedef u_int32_t uint32_t;
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typedef u_int64_t uint64_t;
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typedef u_ptrint_t uptrint_t;
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#define ALIGN(x, sz) (((x) + (sz-1)) & (-sz))
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// branch prediction annotations
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#ifdef __GNUC__
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#define __unlikely(x) __builtin_expect(!!(x), 0)
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#define __likely(x) __builtin_expect(!!(x), 1)
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#else
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#define __unlikely(x) (x)
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#define __likely(x) (x)
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#endif
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#define DBL_MAXINT 9007199254740992LL
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#define FLT_MAXINT 16777216
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#define U64_MAX 18446744073709551615ULL
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#define S64_MAX 9223372036854775807LL
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#define S64_MIN (-S64_MAX - 1LL)
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#define BIT63 0x8000000000000000LL
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#define BIT31 0x80000000
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#define DBL_EPSILON 2.2204460492503131e-16
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#define FLT_EPSILON 1.1920928e-7
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#define DBL_MAX 1.7976931348623157e+308
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#define DBL_MIN 2.2250738585072014e-308
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#define FLT_MAX 3.402823466e+38
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#define FLT_MIN 1.175494351e-38
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#define LOG2_10 3.3219280948873626
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#define rel_zero(a, b) (fabs((a)/(b)) < DBL_EPSILON)
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#define sign_bit(r) ((*(int64_t*)&(r)) & BIT63)
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#define LABS(n) (((n)^((n)>>(NBITS-1))) - ((n)>>(NBITS-1)))
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#define NBABS(n,nb) (((n)^((n)>>((nb)-1))) - ((n)>>((nb)-1)))
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#define DFINITE(d) (((*(int64_t*)&(d))&0x7ff0000000000000LL)!=0x7ff0000000000000LL)
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#define DNAN(d) (((*(int64_t*)&(d))&0x7ff8000000000000LL)==0x7ff8000000000000LL)
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extern double D_PNAN;
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extern double D_NNAN;
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extern double D_PINF;
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extern double D_NINF;
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extern float F_PNAN;
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extern float F_NNAN;
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extern float F_PINF;
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extern float F_NINF;
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typedef enum { T_INT8, T_UINT8, T_INT16, T_UINT16, T_INT32, T_UINT32,
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T_INT64, T_UINT64, T_FLOAT, T_DOUBLE } numerictype_t;
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#define N_NUMTYPES ((int)T_DOUBLE+1)
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#ifdef BITS64
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# define T_LONG T_INT64
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# define T_ULONG T_UINT64
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#else
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# define T_LONG T_INT32
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# define T_ULONG T_UINT32
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#endif
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#endif
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