Fixed-Point Integer macros. More...

Macros
#define	FPI_ONE ((fpi_word_t)(1ULL*FPI_PERCISION))
	Constant for 1.0.

#define	FPI_ONE_HALF (FPI_ONE >> 1)
	Constant for 0.5.

#define	FPI_TWO (FPI_ONE + FPI_ONE)
	Constant for 2.0.

#define	FPI_PI fpi_rconst(3.1415926535)
	Constant for PI.

#define	FPI_E fpi_rconst(2.7182818280)
	Constant for e.

#define	fpi_rconst(R) (((fpi_word_t)((float)R * (float)FPI_ONE)))
	Create constant for number.

#define	fpi_toint(F) ((fpi_word_t)(F) / FPI_PERCISION)
	Convert FPI type to integer type.

#define	fpi_fromint(I) ((fpi_word_t)(I) * FPI_PERCISION)
	Convert integer type to FPI type.

#define	fpi_add(A, B) ((A) + (B))
	Add two fpi types.

#define	fpi_sub(A, B) ((A) - (B))
	Subtract two fpi types.

#define	fpi_fracpart(A) ((fpi_word_t)(A) % FPI_PERCISION)
	Get the fractional part of an fpi.

#define	fpi_abs(A) ((A) < 0 ? -(A) : (A))
	Get the absolute value of an fpi.

#define	fpi_mul(x, y, res) fpi_multiply(&(x), &(y), &res)
	Multiple two fpi types.

#define	fpi_div(x, y, res) fpi_divide(&(x), &(y), &res)
	Divide two fpi types.

#define	fpi_to_str(buffer, x) fpi_to_str_with_padding(buffer, x, FPI_DEFAULT_MAX_DECIMALS, 1)
	Convert fpi to string.

#define	fpi_int_to_str(buffer, integer, divisor, max_decimals)
	Divide integer and return fpi string representation.

#define	fpi_int_to_str2(buffer, integer)
	Return integer as fpi string representation.

Detailed Description

Fixed-Point Integer macros.

MacrosUtilities > Fixed-Point Integer