Introduction

Defines all the auxiliary macros for DCL.

Macros
#define	NULL 0

#define	CONST_PI 3.14159265358979323846f
	Local definitions of the mathematical constant pi. More...

#define	CONST_2PI 2.0f * CONST_PI

#define	CONST_PI_F64 3.1415926535897932384626433832795028841971693993751058209749445923078164062L

#define	CONST_2PI_F64 2.0L * CONST_PI_F64

#define	DCL_FPU32_TOL 1.0e-06f
	Define the acceptable FPU numerical tolerances. More...

#define	DCL_FPU64_TOL 1.0e-10L

#define	DCL_DEFAULT_PERIOD_S 100.0e-06f
	Define the default control period in seconds. More...

#define	DCL_DEFAULT_PERIODF64_S 100.0e-06L

#define	DCL_isValue(x, y) (((x < (y + DCL_FPU32_TOL)) && (x > (y - DCL_FPU32_TOL))) ? 1U : 0U)
	Determines numerical proximity to specified value. More...

#define	DCL_isValueF64(x, y) (((x < (y + DCL_FPU64_TOL)) && (x > (y - DCL_FPU64_TOL))) ? 1U : 0U)

#define	DCL_isZero(x) DCL_isValue(x,0.0f)
	Determines floating point numerical proximity to zero. More...

#define	DCL_isZeroF64(x) DCL_isValueF64(x,0.0L)

#define	DCL_rand(a) (a * ((float32_t) rand() / (float32_t) (RAND_MAX >> 1) - 1.0f))
	Returns a random floating point result between -1.0 and +1.0 where 'a' is the multiplier in single or double precision. Useful for initialization of arrays and matrices during test. More...

#define	DCL_randF64(a) (a * ((float64_t) rand() / (float64_t) (RAND_MAX >> 1) - 1.0L))

#define	DCL_c2Limit ((2.0f - CONST_PI) / (2.0f + CONST_PI))
	Defines the lower limit on derivative filter coefficient c2 in order for fc to lie below the Nyquist frequency. More...

#define	DCL_c2LimitF64 ((2.0L - CONST_PI_F64) / (2.0L + CONST_PI_F64))

Introduction

Macros