Section 3: library functions
NAME utimensat, futimens – change file timestamps with nanosecond precision SYNOPSIS #include <fcntl.h> /* Definition of AT_* constants */ #include <sys/stat.h> int utimensat(int dirfd, const char *pathname, const struct timespec times[2], int flags); int futimens(int fd, const struct timespec times[2]); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): utimensat(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before glibc…
NAME FunTableRowPut – put Funtools rows SYNOPSIS int FunTableRowPut(Fun fun, void *rows, int nev, int idx, char *plist) DESCRIPTION The FunTableRowPut() routine writes rows to a FITS binary table, taking its input from an array of user structs that contain column values selected by a previous call to FunColumnSelect(). Selected column values are automatically converted…
NAME FunTableRowGet – get Funtools rows SYNOPSIS #include <funtools.h> void *FunTableRowGet(Fun fun, void *rows, int maxrow, char *plist, int *nrow) DESCRIPTION The FunTableRowGet() routine retrieves rows from a Funtools binary table or raw event file, and places the values of columns selected by FunColumnSelect() into an array of user structs. Selected column values are automatically…
NAME FunRef: the Funtools Reference Handle SYNOPSIS A description of how to use a Funtools reference handle to connect a Funtools input file to an output file. DESCRIPTION The Funtools reference handle connects a Funtools input file to a Funtools output file so that parameters (or even whole extensions) can be copied from the one…
NAME FunParamPut – put a Funtools param value SYNOPSIS #include <funtools.h> int FunParamPutb(Fun fun, char *name, int n, int value, char *comm, int append) int FunParamPuti(Fun fun, char *name, int n, int value, char *comm, int append) int FunParamPutd(Fun fun, char *name, int n, double value, int prec, char *comm, int append) int FunParamPuts(Fun fun,…
NAME FunParamGet – get a Funtools param value SYNOPSIS #include <funtools.h> int FunParamGetb(Fun fun, char *name, int n, int defval, int *got) int FunParamGeti(Fun fun, char *name, int n, int defval, int *got) double FunParamGetd(Fun fun, char *name, int n, double defval, int *got) char *FunParamGets(Fun fun, char *name, int n, char *defval, int *got)…
NAME FunOpen – open a Funtools data file SYNOPSIS #include <funtools.h> Fun FunOpen(char *name, char *mode, Fun ref); DESCRIPTION The FunOpen() routine opens a Funtools data file for reading or appending, or creates a new FITS file for writing. The name argument specifies the name of the Funtools data file to open. You can use…
NAME flockfile, ftrylockfile, funlockfile – lock FILE for stdio SYNOPSIS #include <stdio.h> void flockfile(FILE *filehandle); int ftrylockfile(FILE *filehandle); void funlockfile(FILE *filehandle); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): All functions shown above: /* Since glibc 2.24: */ _POSIX_C_SOURCE >= 199309L || /* Glibc versions <= 2.23: */ _POSIX_C_SOURCE || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE DESCRIPTION The stdio functions are thread-safe. This is achieved by assigning…
NAME FunLib: the Funtools Programming Interface SYNOPSIS A description of the Funtools library. DESCRIPTION Introduction to the Funtools Programming Interface To create a Funtools application, you need to include the funtools.h definitions file in your code: #include <funtools.h> You then call Funtools subroutines and functions to access Funtools data. The most important routines are: *…
NAME FunInfoPut – put information into a Funtools struct SYNOPSIS #include <funtools.h> int FunInfoPut(Fun fun, int type, char *addr, …) DESCRIPTION The 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…
NAME FunInfoGet – get information from Funtools struct SYNOPSIS #include <funtools.h> int FunInfoGet(Fun fun, int type, char *addr, …) DESCRIPTION The 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…
NAME 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) DESCRIPTION The 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…
NAME FunImageRowGet – get row(s) of an image SYNOPSIS #include <funtools.h> void *FunImageRowGet(Fun fun, void *buf, int rstart, int rstop, char *plist) DESCRIPTION The 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…
NAME 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) DESCRIPTION The 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…
NAME FunImageGet – get an image or image section SYNOPSIS #include <funtools.h> void *FunImageGet(Fun fun, void *buf, char *plist) DESCRIPTION The 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…
NAME FunFlush – flush data to output file SYNOPSIS #include <funtools.h> void FunFlush(Fun fun, char *plist) DESCRIPTION The 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…
NAME ql/math/functional.hpp – functionals and combinators not included in the STL SYNOPSIS #include <ql/types.hpp> #include <cmath> #include <functional> Functions template<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…
QuantLib::Problem – Constrained optimization problem. Synopsis #include <ql/math/optimization/problem.hpp> Public Member Functions Problem (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…
QuantLib::Problem – Constrained optimization problem. Synopsis #include <ql/math/optimization/problem.hpp> Public Member Functions Problem (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…
QuantLib::Problem – Constrained optimization problem. Synopsis #include <ql/math/optimization/problem.hpp> Public Member Functions Problem (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…