This module implements frequently used utility functions. More...

Macros
#define	CONCAT(prefix, name) prefix ## name

#define	Y(name) CONCAT(nfft_,name)

#define	FFTW(name) CONCAT(fftw_,name)

#define	NFFT(name) CONCAT(nfft_,name)

#define	NFCT(name) CONCAT(nfct_,name)

#define	NFST(name) CONCAT(nfst_,name)

#define	NFSFT(name) CONCAT(nfsft_,name)

#define	SOLVER(name) CONCAT(solver_,name)

#define	X(name) Y(name)

#define	STRINGIZEx(x) #x

#define	STRINGIZE(x) STRINGIZEx(x)

#define	K(x) ((R) x)

#define	DK(name, value) const R name = K(value)

#define	MANT_DIG DBL_MANT_DIG

#define	MIN_EXP DBL_MIN_EXP

#define	MAX_EXP DBL_MAX_EXP

#define	EPSILON DBL_EPSILON

#define	KPI K(3.1415926535897932384626433832795028841971693993751)

#define	K2PI K(6.2831853071795864769252867665590057683943387987502)

#define	K4PI K(12.5663706143591729538505735331180115367886775975004)

#define	KE K(2.7182818284590452353602874713526624977572470937000)

#define	IF(x, a, b) ((x)?(a):(b))

#define	MIN(a, b) (((a)<(b))?(a):(b))

#define	MAX(a, b) (((a)>(b))?(a):(b))

#define	ABS(x) (((x)>K(0.0))?(x):(-(x)))

#define	SIGN(a) (((a)>=0)?1:-1)

#define	SIGN(a) (((a)>=0)?1:-1)

#define	SIGNF(a) IF((a)<K(0.0),K(-1.0),K(1.0))

#define	SIZE(x) sizeof(x)/sizeof(x[0])

#define	CSWAP(x, y)
	Swap two vectors.

#define	RSWAP(x, y)
	Swap two vectors.

#define	PHI_HUT(n, k, d) (Y(bessel_i0)((R)(ths->m) * SQRT(ths->b[d] * ths->b[d] - (K(2.0) * KPI * (R)(k) / (R)(n)) * (K(2.0) * KPI * (R)(k) / (R)(n)))))

#define	PHI(n, x, d)

#define	WINDOW_HELP_INIT

#define	WINDOW_HELP_FINALIZE {Y(free)(ths->b);}

#define	WINDOW_HELP_ESTIMATE_m 8

#define	COPYSIGN copysign

#define	NEXTAFTER nextafter

#define	MKNAN nan

#define	CEIL ceil

#define	FLOOR floor

#define	NEARBYINT nearbyint

#define	RINT rint

#define	ROUND round

#define	LRINT lrint

#define	LROUND lround

#define	LLRINT llrint

#define	LLROUND llround

#define	TRUNC trunc

#define	FMOD fmod

#define	REMAINDER remainder

#define	REMQUO remquo

#define	FDIM fdim

#define	FMAX fmax

#define	FMIN fmin

#define	FFMA fma

#define	FABS fabs

#define	SQRT sqrt

#define	CBRT cbrt

#define	HYPOT hypot

#define	EXP exp

#define	EXP2 exp2

#define	EXPM1 expm1

#define	LOG log

#define	LOG2 log2

#define	LOG10 log10

#define	LOG1P log1p

#define	LOGB logb

#define	ILOGB ilogb

#define	MODF modf

#define	FREXP frexp

#define	LDEXP ldexp

#define	SCALBN scalbn

#define	SCALBLN scalbln

#define	POW pow

#define	COS cos

#define	SIN sin

#define	TAN tan

#define	COSH cosh

#define	SINH sinh

#define	TANH tanh

#define	ACOS acos

#define	ASIN asin

#define	ATAN atan

#define	ATAN2 atan2

#define	ACOSH acosh

#define	ASINH asinh

#define	ATANH atanh

#define	TGAMMA tgamma

#define	LGAMMA lgamma

#define	J0 j0

#define	J1 j1

#define	JN jn

#define	Y0 y0

#define	Y1 y1

#define	YN yn

#define	ERF erf

#define	ERFC erfc

#define	CREAL creal

#define	CIMAG cimag

#define	CABS cabs

#define	CARG carg

#define	CONJ conj

#define	CPROJ cproj

#define	CSQRT csqrt

#define	CEXP cexp

#define	CLOG clog

#define	CPOW cpow

#define	CSIN csin

#define	CCOS ccos

#define	CTAN ctan

#define	CASIN casin

#define	CACOS cacos

#define	CATAN catan

#define	CSINH csinh

#define	CCOSH ccosh

#define	CTANH ctanh

#define	CASINH casinh

#define	CACOSH cacosh

#define	CATANH catanh

#define	FLTROUND 0.0

#define	R_RADIX FLT_RADIX

#define	II _Complex_I

#define	__FGS__ "lg"

#define	__FES__ "lE"

#define	__FI__ "%lf"

#define	__FIS__ "lf"

#define	__FR__ "%le"

#define	__FE__ "% 20.16LE"

#define	TRUE 1

#define	FALSE 0

#define	__D__ "%td"

#define	UNUSED(x) (void)x
	Dummy use of unused parameters to silence compiler warnings.

#define	UNUSED(x) (void)x
	Dummy use of unused parameters to silence compiler warnings.

#define	STACK_MALLOC(T, p, x) p = (T)alloca(x)

#define	STACK_FREE(x) /* Nothing. Cleanup done automatically. */

#define	TIC(a)
	Timing, method works since the inaccurate timer is updated mostly in the measured function.

#define	TOC(a)

#define	TIC_FFTW(a)

#define	TOC_FFTW(a)

#define	CK(ex) (void)((ex) \|\| (Y(assertion_failed)(#ex, __LINE__, __FILE__), 0))

#define	A(ex) /* nothing */

Typedefs
typedef double	R

typedef double _Complex	C

typedef ptrdiff_t	INT

Enumerations
enum	float_property { NFFT_EPSILON = 0 , NFFT_SAFE__MIN = 1 , NFFT_BASE = 2 , NFFT_PRECISION = 3 , NFFT_MANT_DIG = 4 , NFFT_FLTROUND = 5 , NFFT_E_MIN = 6 , NFFT_R_MIN = 7 , NFFT_E_MAX = 8 , NFFT_R_MAX = 9 }

Functions
INT	nfft_m2K (const INT m)

R	nfft_elapsed_seconds (ticks t1, ticks t0)
	Return number of elapsed seconds between two time points.

R	nfft_sinc (R x)

R	nfft_lambda (R z, R eps)

R	nfft_lambda2 (R mu, R nu)

R	nfft_bessel_i0 (R x)

R	nfft_bsplines (const INT, const R x)

R	nfft_float_property (float_property)

R	nfft_prod_real (R *vec, INT d)

INT	nfft_log2i (const INT m)

void	nfft_next_power_of_2_exp (const INT N, INT N2, INT t)

void	nfft_next_power_of_2_exp_int (const int N, int N2, int t)

R	nfft_error_l_infty_double (const R x, const R y, const INT n)

R	nfft_error_l_infty_1_double (const R x, const R y, const INT n, const R *z, const INT m)

R	nfft_error_l_2_complex (const C x, const C y, const INT n)

R	nfft_error_l_2_double (const R x, const R y, const INT n)

void	nfft_sort_node_indices_radix_msdf (INT n, INT keys0, INT keys1, INT rhigh)

void	nfft_sort_node_indices_radix_lsdf (INT n, INT keys0, INT keys1, INT rhigh)

void	nfft_assertion_failed (const char s, int line, const char file)

R	nfft_dot_double (R *x, INT n)
	Computes the inner/dot product .

R	nfft_dot_w_complex (C x, R w, INT n)
	Computes the weighted inner/dot product $x^H (w \odot x)$ .

R	nfft_dot_w_double (R x, R w, INT n)
	Computes the weighted inner/dot product $x^H (w \odot x)$ .

R	nfft_dot_w_w2_complex (C x, R w, R *w2, INT n)
	Computes the weighted inner/dot product $x^H (w\odot w2\odot w2 \odot x)$ .

R	nfft_dot_w2_complex (C x, R w2, INT n)
	Computes the weighted inner/dot product $x^H (w2\odot w2 \odot x)$ .

void	nfft_cp_complex (C x, C y, INT n)
	Copies $x \leftarrow y$ .

void	nfft_cp_double (R x, R y, INT n)
	Copies $x \leftarrow y$ .

void	nfft_cp_a_complex (C x, R a, C y, INT n)
	Copies $x \leftarrow a y$ .

void	nfft_cp_a_double (R x, R a, R y, INT n)
	Copies $x \leftarrow a y$ .

void	nfft_cp_w_complex (C x, R w, C *y, INT n)
	Copies $x \leftarrow w\odot y$ .

void	nfft_cp_w_double (R x, R w, R *y, INT n)
	Copies $x \leftarrow w\odot y$ .

void	nfft_upd_axpy_double (R x, R a, R y, INT n)
	Updates $x \leftarrow a x + y$ .

void	nfft_upd_xpay_complex (C x, R a, C y, INT n)
	Updates $x \leftarrow x + a y$ .

void	nfft_upd_xpay_double (R x, R a, R y, INT n)
	Updates $x \leftarrow x + a y$ .

void	nfft_upd_axpby_complex (C x, R a, C y, R b, INT n)
	Updates $x \leftarrow a x + b y$ .

void	nfft_upd_axpby_double (R x, R a, R y, R b, INT n)
	Updates $x \leftarrow a x + b y$ .

void	nfft_upd_xpawy_complex (C x, R a, R w, C *y, INT n)
	Updates $x \leftarrow x + a w\odot y$ .

void	nfft_upd_xpawy_double (R x, R a, R w, R *y, INT n)
	Updates $x \leftarrow x + a w\odot y$ .

void	nfft_upd_axpwy_complex (C x, R a, R w, C *y, INT n)
	Updates $x \leftarrow a x + w\odot y$ .

void	nfft_upd_axpwy_double (R x, R a, R w, R *y, INT n)
	Updates $x \leftarrow a x + w\odot y$ .

void	nfft_voronoi_weights_1d (R w, R x, const INT M)

R	nfft_modified_fejer (const INT N, const INT kk)
	Compute damping factor for modified Fejer kernel: /f$\frac{2}{N}\left(1-\frac{\left\|2k+1\right\|}{N}\right)/f$.

R	nfft_modified_jackson2 (const INT N, const INT kk)
	Compute damping factor for modified Jackson kernel.

R	nfft_modified_jackson4 (const INT N, const INT kk)
	Compute damping factor for modified generalised Jackson kernel.

R	nfft_modified_sobolev (const R mu, const INT kk)
	Compute damping factor for modified Sobolev kernel.

R	nfft_modified_multiquadric (const R mu, const R c, const INT kk)
	Comput damping factor for modified multiquadric kernel.

Detailed Description

This module implements frequently used utility functions.

In particular, this includes simple measurement of resources, evaluation of window functions, vector routines for basic linear algebra tasks, and computation of weights for the inverse transforms.

Macro Definition Documentation

◆ CONCAT

#define CONCAT	(	prefix,
		name
	)	prefix ## name

Definition at line 67 of file infft.h.

◆ Y

#define Y ( name ) CONCAT(nfft_,name)

Definition at line 91 of file infft.h.

◆ FFTW

#define FFTW ( name ) CONCAT(fftw_,name)

Definition at line 92 of file infft.h.

◆ NFFT

#define NFFT ( name ) CONCAT(nfft_,name)

Definition at line 93 of file infft.h.

◆ NFCT

#define NFCT ( name ) CONCAT(nfct_,name)

Definition at line 94 of file infft.h.

◆ NFST

#define NFST ( name ) CONCAT(nfst_,name)

Definition at line 95 of file infft.h.

◆ NFSFT

#define NFSFT ( name ) CONCAT(nfsft_,name)

Definition at line 96 of file infft.h.

◆ SOLVER

#define SOLVER ( name ) CONCAT(solver_,name)

Definition at line 97 of file infft.h.

◆ X

#define X ( name ) Y(name)

Definition at line 99 of file infft.h.

◆ STRINGIZEx

#define STRINGIZEx ( x ) #x

Definition at line 101 of file infft.h.

◆ STRINGIZE

#define STRINGIZE ( x ) STRINGIZEx(x)

Definition at line 102 of file infft.h.

◆ K

#define K ( x ) ((R) x)

Definition at line 107 of file infft.h.

◆ DK

#define DK	(	name,
		value
	)	const R name = K(value)

Definition at line 109 of file infft.h.

◆ MANT_DIG

#define MANT_DIG DBL_MANT_DIG

Definition at line 133 of file infft.h.

◆ MIN_EXP

#define MIN_EXP DBL_MIN_EXP

Definition at line 134 of file infft.h.

◆ MAX_EXP

#define MAX_EXP DBL_MAX_EXP

Definition at line 135 of file infft.h.

◆ EPSILON

#define EPSILON DBL_EPSILON

Definition at line 136 of file infft.h.

◆ KPI

#define KPI K(3.1415926535897932384626433832795028841971693993751)

Definition at line 139 of file infft.h.

◆ K2PI

#define K2PI K(6.2831853071795864769252867665590057683943387987502)

Definition at line 140 of file infft.h.

◆ K4PI

#define K4PI K(12.5663706143591729538505735331180115367886775975004)

Definition at line 141 of file infft.h.

◆ KE

#define KE K(2.7182818284590452353602874713526624977572470937000)

Definition at line 142 of file infft.h.

◆ IF

#define IF	(	x,
		a,
		b
	)	((x)?(a):(b))

Definition at line 144 of file infft.h.

◆ MIN

#define MIN	(	a,
		b
	)	(((a)<(b))?(a):(b))

Definition at line 145 of file infft.h.

◆ MAX

#define MAX	(	a,
		b
	)	(((a)>(b))?(a):(b))

Definition at line 146 of file infft.h.

◆ ABS

#define ABS ( x ) (((x)>K(0.0))?(x):(-(x)))

Definition at line 147 of file infft.h.

◆ SIGN [1/2]

#define SIGN ( a ) (((a)>=0)?1:-1)

Definition at line 148 of file infft.h.

◆ SIGN [2/2]

#define SIGN ( a ) (((a)>=0)?1:-1)

Definition at line 148 of file infft.h.

◆ SIGNF

#define SIGNF ( a ) IF((a)<K(0.0),K(-1.0),K(1.0))

Definition at line 150 of file infft.h.

◆ SIZE

#define SIZE ( x ) sizeof(x)/sizeof(x[0])

Definition at line 153 of file infft.h.

◆ CSWAP

#define CSWAP	(	x,
		y
	)

Value:

{C* NFFT_SWAP_temp__; \

NFFT_SWAP_temp__=(x); (x)=(y); (y)=NFFT_SWAP_temp__;}

Swap two vectors.

Definition at line 156 of file infft.h.

◆ RSWAP

#define RSWAP	(	x,
		y
	)

Value:

{R* NFFT_SWAP_temp__; NFFT_SWAP_temp__=(x); \

(x)=(y); (y)=NFFT_SWAP_temp__;}

Swap two vectors.

Definition at line 160 of file infft.h.

◆ PHI_HUT

#define PHI_HUT	(	n,
		k,
		d
	)	(Y(bessel_i0)((R)(ths->m) * SQRT(ths->b[d] * ths->b[d] - (K(2.0) * KPI * (R)(k) / (R)(n)) * (K(2.0) * KPI * (R)(k) / (R)(n)))))

Definition at line 258 of file infft.h.

◆ PHI

#define PHI	(	n,
		x,
		d
	)

Value:

                      (  (((R)(ths->m) * (R)(ths->m) - (x) * (R)(n) * (x) * (R)(n)) > K(0.0)) \
                      ?   SINH(ths->b[d] * SQRT((R)(ths->m) * (R)(ths->m) - (x) * (R)(n) * (x) * (R)(n))) \
                        / (KPI * SQRT((R)(ths->m) * (R)(ths->m) - (x) * (R)(n) * (x) * (R)(n))) \
                      :   ((((R)(ths->m) * (R)(ths->m) - (x) * (R)(n) * (x) * (R)(n)) < K(0.0)) \
                        ?   SIN(ths->b[d] * SQRT((x) * (R)(n) * (x) * (R)(n) - (R)(ths->m) * (R)(ths->m))) \
                          / (KPI * SQRT((x) * (R)(n) * (x) * (R)(n) - (R)(ths->m) * (R)(ths->m))) \
                        : ths->b[d] / KPI))

Definition at line 259 of file infft.h.

◆ WINDOW_HELP_INIT

#define WINDOW_HELP_INIT

Value:

    { \
      int WINDOW_idx; \
      ths->b = (R*) Y(malloc)((size_t)(ths->d) * sizeof(R)); \
      for (WINDOW_idx = 0; WINDOW_idx < ths->d; WINDOW_idx++) \
        ths->b[WINDOW_idx] = (KPI * (K(2.0) - K(1.0) / ths->sigma[WINDOW_idx])); \
  }

Definition at line 266 of file infft.h.

◆ WINDOW_HELP_FINALIZE

#define WINDOW_HELP_FINALIZE {Y(free)(ths->b);}

Definition at line 273 of file infft.h.

◆ WINDOW_HELP_ESTIMATE_m

#define WINDOW_HELP_ESTIMATE_m 8

Definition at line 289 of file infft.h.

◆ COPYSIGN

#define COPYSIGN copysign

Definition at line 1223 of file infft.h.

◆ NEXTAFTER

#define NEXTAFTER nextafter

Definition at line 1224 of file infft.h.

◆ MKNAN

#define MKNAN nan

Definition at line 1225 of file infft.h.

◆ CEIL

#define CEIL ceil

Definition at line 1226 of file infft.h.

◆ FLOOR

#define FLOOR floor

Definition at line 1227 of file infft.h.

◆ NEARBYINT

#define NEARBYINT nearbyint

Definition at line 1228 of file infft.h.

◆ RINT

#define RINT rint

Definition at line 1229 of file infft.h.

◆ ROUND

#define ROUND round

Definition at line 1230 of file infft.h.

◆ LRINT

#define LRINT lrint

Definition at line 1231 of file infft.h.

◆ LROUND

#define LROUND lround

Definition at line 1232 of file infft.h.

◆ LLRINT

#define LLRINT llrint

Definition at line 1233 of file infft.h.

◆ LLROUND

#define LLROUND llround

Definition at line 1234 of file infft.h.

◆ TRUNC

#define TRUNC trunc

Definition at line 1235 of file infft.h.

◆ FMOD

#define FMOD fmod

Definition at line 1236 of file infft.h.

◆ REMAINDER

#define REMAINDER remainder

Definition at line 1237 of file infft.h.

◆ REMQUO

#define REMQUO remquo

Definition at line 1238 of file infft.h.

◆ FDIM

#define FDIM fdim

Definition at line 1239 of file infft.h.

◆ FMAX

#define FMAX fmax

Definition at line 1240 of file infft.h.

◆ FMIN

#define FMIN fmin

Definition at line 1241 of file infft.h.

◆ FFMA

#define FFMA fma

Definition at line 1242 of file infft.h.

◆ FABS

#define FABS fabs

Definition at line 1243 of file infft.h.

◆ SQRT

#define SQRT sqrt

Definition at line 1244 of file infft.h.

◆ CBRT

#define CBRT cbrt

Definition at line 1245 of file infft.h.

◆ HYPOT

#define HYPOT hypot

Definition at line 1246 of file infft.h.

◆ EXP

#define EXP exp

Definition at line 1247 of file infft.h.

◆ EXP2

#define EXP2 exp2

Definition at line 1248 of file infft.h.

◆ EXPM1

#define EXPM1 expm1

Definition at line 1249 of file infft.h.

◆ LOG

#define LOG log

Definition at line 1250 of file infft.h.

◆ LOG2

#define LOG2 log2

Definition at line 1251 of file infft.h.

◆ LOG10

#define LOG10 log10

Definition at line 1252 of file infft.h.

◆ LOG1P

#define LOG1P log1p

Definition at line 1253 of file infft.h.

◆ LOGB

#define LOGB logb

Definition at line 1254 of file infft.h.

◆ ILOGB

#define ILOGB ilogb

Definition at line 1255 of file infft.h.

◆ MODF

#define MODF modf

Definition at line 1256 of file infft.h.

◆ FREXP

#define FREXP frexp

Definition at line 1257 of file infft.h.

◆ LDEXP

#define LDEXP ldexp

Definition at line 1258 of file infft.h.

◆ SCALBN

#define SCALBN scalbn

Definition at line 1259 of file infft.h.

◆ SCALBLN

#define SCALBLN scalbln

Definition at line 1260 of file infft.h.

◆ POW

#define POW pow

Definition at line 1261 of file infft.h.

◆ COS

#define COS cos

Definition at line 1262 of file infft.h.

◆ SIN

#define SIN sin

Definition at line 1263 of file infft.h.

◆ TAN

#define TAN tan

Definition at line 1264 of file infft.h.

◆ COSH

#define COSH cosh

Definition at line 1265 of file infft.h.

◆ SINH

#define SINH sinh

Definition at line 1266 of file infft.h.

◆ TANH

#define TANH tanh

Definition at line 1267 of file infft.h.

◆ ACOS

#define ACOS acos

Definition at line 1268 of file infft.h.

◆ ASIN

#define ASIN asin

Definition at line 1269 of file infft.h.

◆ ATAN

#define ATAN atan

Definition at line 1270 of file infft.h.

◆ ATAN2

#define ATAN2 atan2

Definition at line 1271 of file infft.h.

◆ ACOSH

#define ACOSH acosh

Definition at line 1272 of file infft.h.

◆ ASINH

#define ASINH asinh

Definition at line 1273 of file infft.h.

◆ ATANH

#define ATANH atanh

Definition at line 1274 of file infft.h.

◆ TGAMMA

#define TGAMMA tgamma

Definition at line 1275 of file infft.h.

◆ LGAMMA

#define LGAMMA lgamma

Definition at line 1276 of file infft.h.

◆ J0

#define J0 j0

Definition at line 1277 of file infft.h.

◆ J1

#define J1 j1

Definition at line 1278 of file infft.h.

◆ JN

#define JN jn

Definition at line 1279 of file infft.h.

◆ Y0

#define Y0 y0

Definition at line 1280 of file infft.h.

◆ Y1

#define Y1 y1

Definition at line 1281 of file infft.h.

◆ YN

#define YN yn

Definition at line 1282 of file infft.h.

◆ ERF

#define ERF erf

Definition at line 1283 of file infft.h.

◆ ERFC

#define ERFC erfc

Definition at line 1284 of file infft.h.

◆ CREAL

#define CREAL creal

Definition at line 1285 of file infft.h.

◆ CIMAG

#define CIMAG cimag

Definition at line 1286 of file infft.h.

◆ CABS

#define CABS cabs

Definition at line 1287 of file infft.h.

◆ CARG

#define CARG carg

Definition at line 1288 of file infft.h.

◆ CONJ

#define CONJ conj

Definition at line 1289 of file infft.h.

◆ CPROJ

#define CPROJ cproj

Definition at line 1290 of file infft.h.

◆ CSQRT

#define CSQRT csqrt

Definition at line 1291 of file infft.h.

◆ CEXP

#define CEXP cexp

Definition at line 1292 of file infft.h.

◆ CLOG

#define CLOG clog

Definition at line 1293 of file infft.h.

◆ CPOW

#define CPOW cpow

Definition at line 1294 of file infft.h.

◆ CSIN

#define CSIN csin

Definition at line 1295 of file infft.h.

◆ CCOS

#define CCOS ccos

Definition at line 1296 of file infft.h.

◆ CTAN

#define CTAN ctan

Definition at line 1297 of file infft.h.

◆ CASIN

#define CASIN casin

Definition at line 1298 of file infft.h.

◆ CACOS

#define CACOS cacos

Definition at line 1299 of file infft.h.

◆ CATAN

#define CATAN catan

Definition at line 1300 of file infft.h.

◆ CSINH

#define CSINH csinh

Definition at line 1301 of file infft.h.

◆ CCOSH

#define CCOSH ccosh

Definition at line 1302 of file infft.h.

◆ CTANH

#define CTANH ctanh

Definition at line 1303 of file infft.h.

◆ CASINH

#define CASINH casinh

Definition at line 1304 of file infft.h.

◆ CACOSH

#define CACOSH cacosh

Definition at line 1305 of file infft.h.

◆ CATANH

#define CATANH catanh

Definition at line 1306 of file infft.h.

◆ FLTROUND

#define FLTROUND 0.0

Definition at line 1316 of file infft.h.

◆ R_RADIX

#define R_RADIX FLT_RADIX

Definition at line 1325 of file infft.h.

◆ II

#define II _Complex_I

Definition at line 1326 of file infft.h.

◆ FGS

#define __FGS__ "lg"

Definition at line 1342 of file infft.h.

◆ FES

#define __FES__ "lE"

Definition at line 1343 of file infft.h.

◆ FI

#define __FI__ "%lf"

Definition at line 1344 of file infft.h.

◆ FIS

#define __FIS__ "lf"

Definition at line 1345 of file infft.h.

◆ FR

#define __FR__ "%le"

Definition at line 1346 of file infft.h.

◆ FE

#define __FE__ "% 20.16LE"

Definition at line 1363 of file infft.h.

◆ TRUE

#define TRUE 1

Definition at line 1366 of file infft.h.

◆ FALSE

#define FALSE 0

Definition at line 1367 of file infft.h.

◆ D

#define __D__ "%td"

Definition at line 1372 of file infft.h.

◆ UNUSED [1/2]

#define UNUSED ( x ) (void)x

Dummy use of unused parameters to silence compiler warnings.

Definition at line 1376 of file infft.h.

◆ UNUSED [2/2]

#define UNUSED ( x ) (void)x

Dummy use of unused parameters to silence compiler warnings.

Definition at line 1376 of file infft.h.

◆ STACK_MALLOC

#define STACK_MALLOC	(	T,
		p,
		x
	)	p = (T)alloca(x)

Definition at line 1412 of file infft.h.

◆ STACK_FREE

#define STACK_FREE ( x ) /* Nothing. Cleanup done automatically. */

Definition at line 1413 of file infft.h.

◆ TIC

#define TIC ( a )

Timing, method works since the inaccurate timer is updated mostly in the measured function.

For small times not every call of the measured function will also produce a 'unit' time step. Measuring the fftw might cause a wrong output vector due to the repeated ffts.

Definition at line 1457 of file infft.h.

◆ TOC

#define TOC ( a )

Definition at line 1458 of file infft.h.

◆ TIC_FFTW

#define TIC_FFTW ( a )

Definition at line 1465 of file infft.h.

◆ TOC_FFTW

#define TOC_FFTW ( a )

Definition at line 1466 of file infft.h.

◆ CK

#define CK ( ex ) (void)((ex) || (Y(assertion_failed)(#ex, __LINE__, __FILE__), 0))

Definition at line 1580 of file infft.h.

◆ A

#define A ( ex ) /* nothing */

Definition at line 1588 of file infft.h.

Typedef Documentation

◆ R

typedef double R

Definition at line 89 of file infft.h.

◆ C

typedef double _Complex C

Definition at line 90 of file infft.h.

◆ INT

typedef ptrdiff_t INT

Definition at line 120 of file infft.h.

Enumeration Type Documentation

◆ float_property

enum float_property

Definition at line 1489 of file infft.h.

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ CONCAT

◆ Y

◆ FFTW

◆ NFFT

◆ NFCT

◆ NFST

◆ NFSFT

◆ SOLVER

◆ X

◆ STRINGIZEx

◆ STRINGIZE

◆ K

◆ DK

◆ MANT_DIG

◆ MIN_EXP

◆ MAX_EXP

◆ EPSILON

◆ KPI

◆ K2PI

◆ K4PI

◆ KE

◆ IF

◆ MIN

◆ MAX

◆ ABS

◆ SIGN [1/2]

◆ SIGN [2/2]

◆ SIGNF

◆ SIZE

◆ CSWAP

◆ RSWAP

◆ PHI_HUT

◆ PHI

◆ WINDOW_HELP_INIT

◆ WINDOW_HELP_FINALIZE

◆ WINDOW_HELP_ESTIMATE_m

◆ COPYSIGN

◆ NEXTAFTER

◆ MKNAN

◆ CEIL

◆ FLOOR

◆ NEARBYINT

◆ RINT

◆ ROUND

◆ LRINT

◆ LROUND

◆ LLRINT

◆ LLROUND

◆ TRUNC

◆ FMOD

◆ REMAINDER

◆ REMQUO

◆ FDIM

◆ FMAX

◆ FMIN

◆ FFMA

◆ FABS

◆ SQRT

◆ CBRT

◆ HYPOT

◆ EXP

◆ EXP2

◆ EXPM1

◆ LOG

◆ LOG2

◆ LOG10

◆ LOG1P

◆ LOGB

◆ ILOGB

◆ MODF

◆ FREXP

◆ LDEXP

◆ SCALBN

◆ SCALBLN

◆ FGS

◆ FES

◆ FI

◆ FIS

◆ FR

◆ FE

◆ D