darwin

Documentation

Overview

Package darwin contains low-level functions for the Darwin (macOS) operating system.

Index

• Constants
• func AssertRtn(functionName, filePath []byte, lineNumber int, expression []byte) bool
• func BSwap32(a uint32) uint32
• func BSwap64(a uint64) uint64
• func BuiltinExpect(a, b int) int
• func Fabs(x float64) float64
• func Fabsf(x float32) float32
• func Fabsl(x float64) float64
• func Inf() float64
• func Inff() float32
• func Infl() float64
• func IsType(_c Darwin_ct_rune_t, _f uint32) uint32
• func NaN(s []byte) float64
• func Putchar(character int)
• type C__mbstate_t
• type Darwin_ct_rune_t
  • func IsCType(_c Darwin_ct_rune_t, _f uint32) Darwin_ct_rune_t
  • func MaskRune(_c Darwin_ct_rune_t, _f uint32) Darwin_ct_rune_t
  • func ToLower(_c Darwin_ct_rune_t) Darwin_ct_rune_t
  • func ToUpper(_c Darwin_ct_rune_t) Darwin_ct_rune_t
• type Double2
  • func SincosStret(x float64) Double2
  • func SincospiStret(x float64) Double2
• type Float2
  • func SincosfStret(x float32) Float2
  • func SincospifStret(x float32) Float2

Constants

const (
	CTYPE_A   = 0x00000100 // Alpha
	CTYPE_C   = 0x00000200 // Control
	CTYPE_D   = 0x00000400 // Digit
	CTYPE_G   = 0x00000800 // Graph
	CTYPE_L   = 0x00001000 // Lower
	CTYPE_P   = 0x00002000 // Punct
	CTYPE_S   = 0x00004000 // Space
	CTYPE_U   = 0x00008000 // Upper
	CTYPE_X   = 0x00010000 // X digit
	CTYPE_B   = 0x00020000 // Blank
	CTYPE_R   = 0x00040000 // Print
	CTYPE_I   = 0x00080000 // Ideogram
	CTYPE_T   = 0x00100000 // Special
	CTYPE_Q   = 0x00200000 // Phonogram
	CTYPE_SW0 = 0x20000000 // 0 width character
	CTYPE_SW1 = 0x40000000 // 1 width character
	CTYPE_SW2 = 0x80000000 // 2 width character
	CTYPE_SW3 = 0xc0000000 // 3 width character
)

Apple defines a bunch of magic values for the type of character, see https://opensource.apple.com/source/Libc/Libc-320/include/ctype.h.auto.html

These are provided as values for method that take _f parameter.

Functions

func AssertRtn

func AssertRtn(functionName, filePath []byte, lineNumber int, expression []byte) bool

func BSwap32

func BSwap32(a uint32) uint32

I'm not sure which header file this actually comes from?

func BSwap64

func BSwap64(a uint64) uint64

I'm not sure which header file this actually comes from?

func BuiltinExpect

func BuiltinExpect(a, b int) int

func Fabs

func Fabs(x float64) float64

func Fabsf

func Fabsf(x float32) float32

func Fabsl

func Fabsl(x float64) float64

func Inf

func Inf() float64

func Inff

func Inff() float32

func Infl

func Infl() float64

func IsType

func IsType(_c Darwin_ct_rune_t, _f uint32) uint32

IsType replaces __istype(). It should not be strictly necessary but the real __istype() refers to internal darwin state (_DefaultRuneLocale) that is difficult to translate. So for now we will replace it but this could be removed in the future.

There may be multiple bit masks. And yes, I'm sure there is a much better way to handle this, so if you know one please consider putting in a PR :)

func NaN

func NaN(s []byte) float64

func Putchar

func Putchar(character int)

Types

type C__mbstate_t

type C__mbstate_t int64

FIXME: These are wrong.

type Darwin_ct_rune_t

type Darwin_ct_rune_t int

__darwin_ct_rune_t

func IsCType

func IsCType(_c Darwin_ct_rune_t, _f uint32) Darwin_ct_rune_t

__darwin_ct_rune_t __isctype(__darwin_ct_rune_t, uint32)

func MaskRune

func MaskRune(_c Darwin_ct_rune_t, _f uint32) Darwin_ct_rune_t

I have no idea what MaskRune is supposed to do. It is provided internally by darwin.

func ToLower

func ToLower(_c Darwin_ct_rune_t) Darwin_ct_rune_t

func ToUpper

func ToUpper(_c Darwin_ct_rune_t) Darwin_ct_rune_t

type Double2

type Double2 struct {
	Sinval float64
	Cosval float64
}

func SincosStret

func SincosStret(x float64) Double2

func SincospiStret

func SincospiStret(x float64) Double2

type Float2

type Float2 struct {
	Sinval float32
	Cosval float32
}

func SincosfStret

func SincosfStret(x float32) Float2

func SincospifStret

func SincospifStret(x float32) Float2