Section 3: library functions
FunInfoPut – put information into a Funtools struct Synopsis #include <funtools.h> int FunInfoPut(Fun fun, int type, char *addr, …)DescriptionThe FunInfoPut() routine puts information into a Funtools structure. The first argument is the Fun handle from which information is to be retrieved. After this first required argument comes a variable length list of pairs of arguments….
FunInfoGet – get information from Funtools struct Synopsis #include <funtools.h> int FunInfoGet(Fun fun, int type, char *addr, …)DescriptionThe FunInfoGet() routine returns information culled from the Funtools structure. The first argument is the Fun handle from which information is to be retrieved. This first required argument is followed by a variable length list of pairs of…
FunImageRowPut – put row(s) of an image Synopsis #include <funtools.h> void *FunImageRowPut(Fun fun, void *buf, int rstart, int rstop, int dim1, int dim2, int bitpix, char *plist)DescriptionThe FunImageRowPut() routine writes one or more image rows to the specified FITS image file. The first argument is the Funtools handle returned by FunOpen(). The second buf argument…
FunImageRowGet – get row(s) of an image Synopsis #include <funtools.h> void *FunImageRowGet(Fun fun, void *buf, int rstart, int rstop, char *plist)DescriptionThe FunImageRowGet() routine returns one or more image rows from the specified section of a Funtools data file. If the input data are of type image, the array is generated by extracting the specified image…
FunImagePut – put an image to a Funtools file Synopsis #include <funtools.h> int FunImagePut(Fun fun, void *buf, int dim1, int dim2, int bitpix, char *plist)DescriptionThe FunImagePut() routine outputs an image array to a FITS file. The image is written either as a primary header/data unit or as an image extension, depending on whether other data…
FunImageGet – get an image or image section Synopsis #include <funtools.h> void *FunImageGet(Fun fun, void *buf, char *plist)DescriptionThe FunImageGet() routine returns an binned image array of the specified section of a Funtools data file. If the input data are already of type image, the array is generated by extracting the specified image section and then…
FunFlush – flush data to output file Synopsis #include <funtools.h> void FunFlush(Fun fun, char *plist)DescriptionThe FunFlush routine will flush data to a FITS output file. In particular, it can be called after all rows have been written (using the FunTableRowPut() routine) in order to add the null padding that is required to complete a FITS…
ql/math/functional.hpp – functionals and combinators not included in the STL Synopsis#include <ql/types.hpp> #include <cmath> #include <functional> Functionstemplate<class F , class R > clipped_function< F, R > clip (const F &f, const R &r) template<class F , class G > composed_function< F, G > compose (const F &f, const G &g) template<class F , class G…
QuantLib::Problem – Constrained optimization problem. Synopsis#include <ql/math/optimization/problem.hpp> Public Member FunctionsProblem (CostFunction &costFunction, Constraint &constraint, const Array &initialValue=Array()) default constructor void reset () Real value (const Array &x) call cost function computation and increment evaluation counter Disposable< Array > values (const Array &x) call cost values computation and increment evaluation counter void gradient (Array &grad_f, const…
QuantLib::Problem – Constrained optimization problem. Synopsis#include <ql/math/optimization/problem.hpp> Public Member FunctionsProblem (CostFunction &costFunction, Constraint &constraint, const Array &initialValue=Array()) default constructor void reset () Real value (const Array &x) call cost function computation and increment evaluation counter Disposable< Array > values (const Array &x) call cost values computation and increment evaluation counter void gradient (Array &grad_f, const…
QuantLib::Problem – Constrained optimization problem. Synopsis#include <ql/math/optimization/problem.hpp> Public Member FunctionsProblem (CostFunction &costFunction, Constraint &constraint, const Array &initialValue=Array()) default constructor void reset () Real value (const Array &x) call cost function computation and increment evaluation counter Disposable< Array > values (const Array &x) call cost values computation and increment evaluation counter void gradient (Array &grad_f, const…
QuantLib::Problem – Constrained optimization problem. Synopsis#include <ql/math/optimization/problem.hpp> Public Member FunctionsProblem (CostFunction &costFunction, Constraint &constraint, const Array &initialValue=Array()) default constructor void reset () Real value (const Array &x) call cost function computation and increment evaluation counter Disposable< Array > values (const Array &x) call cost values computation and increment evaluation counter void gradient (Array &grad_f, const…
QuantLib::EndCriteria – Criteria to end optimization process:. Synopsis#include <ql/math/optimization/endcriteria.hpp> Public Typesenum Type { None, MaxIterations, StationaryPoint, StationaryFunctionValue, StationaryFunctionAccuracy, ZeroGradientNorm, Unknown } Public Member FunctionsEndCriteria (Size maxIterations, Size maxStationaryStateIterations, Real rootEpsilon, Real functionEpsilon, Real gradientNormEpsilon) Initialization constructor. Size maxIterations () const Size maxStationaryStateIterations () const Real rootEpsilon () const Real functionEpsilon () const Real gradientNormEpsilon ()…
QuantLib::EndCriteria – Criteria to end optimization process:. Synopsis#include <ql/math/optimization/endcriteria.hpp> Public Typesenum Type { None, MaxIterations, StationaryPoint, StationaryFunctionValue, StationaryFunctionAccuracy, ZeroGradientNorm, Unknown } Public Member FunctionsEndCriteria (Size maxIterations, Size maxStationaryStateIterations, Real rootEpsilon, Real functionEpsilon, Real gradientNormEpsilon) Initialization constructor. Size maxIterations () const Size maxStationaryStateIterations () const Real rootEpsilon () const Real functionEpsilon () const Real gradientNormEpsilon ()…
FunColumnSelect – select Funtools columns Synopsis #include <funtools.h> int FunColumnSelect(Fun fun, int size, char *plist, char *name1, char *type1, char *mode1, int offset1, char *name2, char *type2, char *mode2, int offset2, …, NULL) int FunColumnSelectArr(Fun fun, int size, char *plist, char **names, char **types, char **modes, int *offsets, int nargs);DescriptionThe FunColumnSelect() routine is used to…
FunColumnLookup – lookup a Funtools column Synopsis #include <funtools.h> int FunColumnLookup(Fun fun, char *s, int which, char **name, int *type, int *mode, int *offset, int *n, int *width)DescriptionThe FunColumnLookup() routine returns information about a named (or indexed) column. The first argument is the Fun handle associated with this set of columns. The second argument is…
FunColumnActivate – activate Funtools columns Synopsis #include <funtools.h> void FunColumnActivate(Fun fun, char *s, char *plist)DescriptionThe FunColumnActivate() routine determines which columns (set up by FunColumnSelect()) ultimately will be read and/or written. By default, all columns that are selected using FunColumnSelect() are activated. The FunColumnActivate() routine can be used to turn off/off activation of specific columns. The…
FunClose – close a Funtools data file Synopsis #include <funtools.h> void FunClose(Fun fun)DescriptionThe FunClose() routine closes a previously-opened Funtools data file, freeing control structures. If a Funtools reference handle was passed to the FunOpen() call for this file, and if copy mode also was specified for that file, then FunClose() also will copy the remaining…
ftw, nftw – file tree walk Synopsis#include <ftw.h> int nftw(const char *dirpath, int (*fn) (const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf), int nopenfd, int flags); #include <ftw.h> int ftw(const char *dirpath, int (*fn) (const char *fpath, const struct stat *sb, int typeflag), int nopenfd);Feature Test Macro Requirements for glibc (see…
fts, fts_open, fts_read, fts_children, fts_set, fts_close – traverse a file hierarchy Synopsis#include <sys/types.h> #include <sys/stat.h> #include <fts.h> FTS *fts_open(char * const *path_argv, int options, int (*compar)(const FTSENT **, const FTSENT **)); FTSENT *fts_read(FTS *ftsp); FTSENT *fts_children(FTS *ftsp, int instr); int fts_set(FTS *ftsp, FTSENT *f, int instr); int fts_close(FTS *ftsp);DescriptionThe fts functions are provided for traversing…