Union to create float values with integer constants. More...

Public Member Functions
	operator float () const noexcept
	Accessor to load the floating point value.

uint32_float_t &	operator= (float fInput) noexcept
	Update with a new floating point value.

float	get_float (void) const noexcept
	Accessor to load the 32 float.

void	set_float (float fInput) noexcept
	Set the floating point value with a binary representation in a float.

uint32_t	get_uint32 (void) const noexcept
	Accessor to load the 32 bit value in binary.

void	set_uint32 (uint32_t uInput) noexcept
	Set the floating point value with a binary representation in an integer.

Public Attributes
uint32_t	w
	Value in binary.

float	f
	Value as a 32 bit float.

Detailed Description

Union to create float values with integer constants.

Some "C" compilers are not 100% accurate in creating floating point constants. To get around this limitation, once the binary representation of a floating point number is determined, it will be used to assign the value so the binary representation does not change from compiler to compiler.

This union is also used to obtain the binary representation of a 32 bit float in a cross compiler way.

// Binary representation for Single Epsilon
Burger::uint32_float_t Epsilon = {0x34000000U};
 
void code(void)
{
 // Fetch as a float
 float fEpsilon = Epsilon;
 
 // Set a new floating point value
 Epsilon = 1.5f;
 
 // Get the binary value as a 32 bit integer
 uint32_t uEpsilon = Epsilon.get_uint32();
 
 // Set the binary value as a 32 bit integer
 Epsilon.set_uint32(0x34000000U);
}