float2x2

Floating point 2x2 matrix structure. More...

#include <float.hpp>

Public Member Functions
constexpr	float2x2 (float n=0.0f) noexcept
	Creates a new floating point 2x2 matrix structure.
constexpr	float2x2 (float c0r0, float c1r0, float c0r1, float c1r1) noexcept
	Creates a new floating point 2x2 matrix structure.
constexpr	float2x2 (float2 c0, float2 c1) noexcept
	Creates a new floating point 2x2 matrix structure.
float2 &	operator[] (psize i) noexcept
	Returns matrix column by index.
float2	operator[] (psize i) const noexcept
	Returns matrix column by index.
constexpr float2x2	operator+ (float n) const noexcept
constexpr float2x2	operator- (float n) const noexcept
constexpr float2x2	operator* (float n) const noexcept
constexpr float2x2	operator/ (float n) const noexcept
float2x2 &	operator+= (float n) noexcept
float2x2 &	operator-= (float n) noexcept
float2x2 &	operator*= (float n) noexcept
float2x2 &	operator/= (float n) noexcept
constexpr float2x2	operator* (float2x2 m) const noexcept
	Calculates dot product between two matrices.
constexpr float2	operator* (float2 v) const noexcept
	Calculates dot product between matrix and vector.
float2x2 &	operator*= (const float2x2 &m) noexcept
	Calculates dot product between two matrices.
bool	operator== (const float2x2 &m) const noexcept
	Returns true if matrices have the same values.
bool	operator!= (const float2x2 &m) const noexcept
	Returns true if matrices have different values.

Public Attributes
float2	c0
float2	c1

Static Public Attributes
static const float2x2	zero = float2x2(0.0f)
static const float2x2	one = float2x2(1.0f)
static const float2x2	minusOne = float2x2(-1.0f)
static const float2x2	identity

Detailed Description

Floating point 2x2 matrix structure.

Commonly used for basic transformations: translation, scale, rotation, etc.

Constructor & Destructor Documentation

float2x2() [1/3]

constexpr float2x2 ( float n = 0.0f )

inlineexplicitconstexprnoexcept

Creates a new floating point 2x2 matrix structure.

Parameters

n	target value for all columns and rows

float2x2() [2/3]

constexpr float2x2 ( float c0r0, float c1r0, float c0r1, float c1r1 )

inlineconstexprnoexcept

Creates a new floating point 2x2 matrix structure.

See the float2x2.

float2x2() [3/3]

constexpr float2x2 ( float2 c0, float2 c1 )

inlineconstexprnoexcept

Creates a new floating point 2x2 matrix structure.

Parameters

c0	first matrix column value
c1	second matrix column value

Member Function Documentation

operator[]() [1/2]

float2 & operator[] ( psize i )

inlinenoexcept

Returns matrix column by index.

Parameters

i	target column index

operator[]() [2/2]

float2 operator[] ( psize i ) const

inlinenoexcept

Returns matrix column by index.

Parameters

i	target column index

operator*() [1/2]

constexpr float2x2 operator* ( float2x2 m ) const

inlineconstexprnoexcept

Calculates dot product between two matrices.

Parameters

m	target matrix to dot by

operator*() [2/2]

constexpr float2 operator* ( float2 v ) const

inlineconstexprnoexcept

Calculates dot product between matrix and vector.

Parameters

v	target vector to dot by

operator*=()

float2x2 & operator*= ( const float2x2 & m )

inlinenoexcept

Calculates dot product between two matrices.

Parameters

[in]

m

target matrix to dot by

operator==()

bool operator== ( const float2x2 & m ) const

inlinenoexcept

Returns true if matrices have the same values.

Parameters

[in]

m

another matrix to compare with

operator!=()

bool operator!= ( const float2x2 & m ) const

inlinenoexcept

Returns true if matrices have different values.

Parameters

[in]

m

another matrix to compare with

Member Data Documentation

c0

float2 c0

First matrix column.

c1

float2 c1

Second matrix column.

identity

const float2x2 identity

inlinestatic

Initial value:

= float2x2(
    1.0f, 0.0f,
    0.0f, 1.0f)