4. Math bit helpers

This module represents collection of bit representation routines, which allow accessing integer and floating point values packed into different types.

All functions and symbols are in “math_bits” module, or publicly available via “math_boost”. Use require to get access to it.

require daslib/math_bits
require daslib/math_boost

4.1. Type aliases

Vec4f is a variant type

data	float4
i64	int64
i32	int
i16	int16
i8	int8
str	string
ptr	void?
b	bool

bit-castable float4

4.2. float in int,uint

• int_bits_to_float (x:int const) : float

• int_bits_to_float (x:int2 const) : float2

• int_bits_to_float (x:int3 const) : float3

• int_bits_to_float (x:int4 const) : float4

• uint_bits_to_float (x:uint const) : float

• uint_bits_to_float (x:uint2 const) : float2

• uint_bits_to_float (x:uint3 const) : float3

• uint_bits_to_float (x:uint4 const) : float4

int_bits_to_float(x: int const)

int_bits_to_float returns float

argument	argument type
x	int const

bit representation of x is interpreted as a float

int_bits_to_float(x: int2 const)

int_bits_to_float returns float2

argument	argument type
x	int2 const

bit representation of x is interpreted as a float

int_bits_to_float(x: int3 const)

int_bits_to_float returns float3

argument	argument type
x	int3 const

bit representation of x is interpreted as a float

int_bits_to_float(x: int4 const)

int_bits_to_float returns float4

argument	argument type
x	int4 const

bit representation of x is interpreted as a float

uint_bits_to_float(x: uint const)

uint_bits_to_float returns float

argument	argument type
x	uint const

bit representation of x is interpreted as a float

uint_bits_to_float(x: uint2 const)

uint_bits_to_float returns float2

argument	argument type
x	uint2 const

bit representation of x is interpreted as a float

uint_bits_to_float(x: uint3 const)

uint_bits_to_float returns float3

argument	argument type
x	uint3 const

bit representation of x is interpreted as a float

uint_bits_to_float(x: uint4 const)

uint_bits_to_float returns float4

argument	argument type
x	uint4 const

bit representation of x is interpreted as a float

4.3. int,uint in float

• float_bits_to_int (x:float const) : int

• float_bits_to_int (x:float2 const) : int2

• float_bits_to_int (x:float3 const) : int3

• float_bits_to_int (x:float4 const) : int4

• float_bits_to_uint (x:float const) : uint

• float_bits_to_uint (x:float2 const) : uint2

• float_bits_to_uint (x:float3 const) : uint3

• float_bits_to_uint (x:float4 const) : uint4

float_bits_to_int(x: float const)

float_bits_to_int returns int

argument	argument type
x	float const

bit representation of x is interpreted as a int

float_bits_to_int(x: float2 const)

float_bits_to_int returns int2

argument	argument type
x	float2 const

bit representation of x is interpreted as a int

float_bits_to_int(x: float3 const)

float_bits_to_int returns int3

argument	argument type
x	float3 const

bit representation of x is interpreted as a int

float_bits_to_int(x: float4 const)

float_bits_to_int returns int4

argument	argument type
x	float4 const

bit representation of x is interpreted as a int

float_bits_to_uint(x: float const)

float_bits_to_uint returns uint

argument	argument type
x	float const

bit representation of x is interpreted as a uint

float_bits_to_uint(x: float2 const)

float_bits_to_uint returns uint2

argument	argument type
x	float2 const

bit representation of x is interpreted as a uint

float_bits_to_uint(x: float3 const)

float_bits_to_uint returns uint3

argument	argument type
x	float3 const

bit representation of x is interpreted as a uint

float_bits_to_uint(x: float4 const)

float_bits_to_uint returns uint4

argument	argument type
x	float4 const

bit representation of x is interpreted as a uint

4.4. int64,uint64 in double

• int64_bits_to_double (x:int64 const) : double

• uint64_bits_to_double (x:uint64 const) : double

• double_bits_to_int64 (x:double const) : int64

• double_bits_to_uint64 (x:double const) : uint64

int64_bits_to_double(x: int64 const)

int64_bits_to_double returns double

argument	argument type
x	int64 const

bit representation of x is interpreted as a double

uint64_bits_to_double(x: uint64 const)

uint64_bits_to_double returns double

argument	argument type
x	uint64 const

bit representation of x is interpreted as a double

double_bits_to_int64(x: double const)

double_bits_to_int64 returns int64

argument	argument type
x	double const

bit representation of x is interpreted as a int64

double_bits_to_uint64(x: double const)

double_bits_to_uint64 returns uint64

argument	argument type
x	double const

bit representation of x is interpreted as a uint64

4.5. bit-cast vec4f

• cast_to_vec4f (x:bool const) : float4

• cast_to_vec4f (x:int64 const) : float4

• cast_to_int64 (data:float4 const) : int64

• cast_to_int32 (data:float4 const) : int

• cast_to_int16 (data:float4 const) : int16

• cast_to_int8 (data:float4 const) : int8

• cast_to_string (data:float4 const) : string

• cast_to_pointer (data:float4 const) : void?

cast_to_vec4f(x: bool const)

cast_to_vec4f returns float4

argument	argument type
x	bool const

return a float4 which stores bit-cast version of x

cast_to_vec4f(x: int64 const)

cast_to_vec4f returns float4

argument	argument type
x	int64 const

return a float4 which stores bit-cast version of x

cast_to_int64(data: float4 const)

cast_to_int64 returns int64

argument	argument type
data	float4 const

return an int64 which was bit-cast from x

cast_to_int32(data: float4 const)

cast_to_int32 returns int

argument	argument type
data	float4 const

return an int32 which was bit-cast from x

cast_to_int16(data: float4 const)

cast_to_int16 returns int16

argument	argument type
data	float4 const

return an int16 which was bit-cast from x

cast_to_int8(data: float4 const)

cast_to_int8 returns int8

argument	argument type
data	float4 const

return an int8 which was bit-cast from x

cast_to_string(data: float4 const)

cast_to_string returns string

argument	argument type
data	float4 const

return a string which pointer was bit-cast from x

cast_to_pointer(data: float4 const)

cast_to_pointer returns void?

argument	argument type
data	float4 const

return a pointer which was bit-cast from x