SysTutorials Posts

NAME QuantLib::ConjugateGradient – Multi-dimensional Conjugate Gradient class. SYNOPSIS #include <ql/math/optimization/conjugategradient.hpp> Inherits QuantLib::LineSearchBasedMethod. Public Member Functions ConjugateGradient (const boost::shared_ptr< LineSearch > &lineSearch=boost::shared_ptr< LineSearch >()) virtual EndCriteria::Type minimize (Problem &P, const EndCriteria &endCriteria) solve the optimization problem P Detailed Description Multi-dimensional Conjugate Gradient class. Fletcher-Reeves-Polak-Ribiere algorithm adapted from Numerical Recipes in C, 2nd edition. User has to…

NAME QuantLib::IncrementalStatistics – Statistics tool based on incremental accumulation. SYNOPSIS #include <ql/math/statistics/incrementalstatistics.hpp> Public Types typedef Real value_type Public Member Functions Inspectors Size samples () const number of samples collected Real weightSum () const sum of data weights Real mean () const Real variance () const Real standardDeviation () const Real errorEstimate () const Real skewness…

QuantLib::HazardRate – Hazard-rate-curve traits. Synopsis #include <ql/termstructures/credit/probabilitytraits.hpp> Public Types typedef BootstrapHelper< DefaultProbabilityTermStructure > helper Static Public Member Functions static Date initialDate (const DefaultProbabilityTermStructure *c) static Real initialValue (const DefaultProbabilityTermStructure *) static bool dummyInitialValue () static Real initialGuess () static Real guess (const DefaultProbabilityTermStructure *c, const Date &d) static Real minValueAfter (Size, const std::vector< Real >…

QuantLib::CallableBondConstantVolatility – Constant callable-bond volatility, no time-strike dependence. Synopsis #include <ql/experimental/callablebonds/callablebondconstantvol.hpp> Inherits QuantLib::CallableBondVolatilityStructure. Public Member Functions CallableBondConstantVolatility (const Date &referenceDate, Volatility volatility, const DayCounter &dayCounter) CallableBondConstantVolatility (const Date &referenceDate, const Handle< Quote > &volatility, const DayCounter &dayCounter) CallableBondConstantVolatility (Natural settlementDays, const Calendar &, Volatility volatility, const DayCounter &dayCounter) CallableBondConstantVolatility (Natural settlementDays, const Calendar &, const…

QuantLib::Date – Concrete date class. Synopsis #include <ql/time/date.hpp> Public Member Functions constructors Date () Default constructor returning a null date. Date (BigInteger serialNumber) Constructor taking a serial number as given by Applix or Excel. Date (Day d, Month m, Year y) More traditional constructor. inspectors Weekday weekday () const Day dayOfMonth () const Day dayOfYear…

NAME QuantLib::GeneralStatistics – Statistics tool. SYNOPSIS #include <ql/math/statistics/generalstatistics.hpp> Public Types typedef Real value_type Public Member Functions Inspectors Size samples () const number of samples collected const std::vector< std::pair< Real, Real > > & data () const collected data Real weightSum () const sum of data weights Real mean () const Real variance () const Real…

NAME midi_time – The current position in the MIDI file, in seconds. Allegro game programming library. SYNOPSIS #include <allegro.h> extern volatile long midi_time; DESCRIPTION Contains the position in seconds in the currently playing midi. This is useful if you want to display the current song position in seconds, not as beat number. SEE ALSO play_midi(3),…

NAME midi_msg_callback, midi_meta_callback, midi_sysex_callback – Hook functions allowing you to intercept MIDI player events. Allegro game programming library. SYNOPSIS #include <allegro.h> extern void (*midi_msg_callback)(int msg, int byte1, int byte2); extern void (*midi_meta_callback)(int type, const unsigned char *data, int length); extern void (*midi_sysex_callback)(const unsigned char *data, int length); DESCRIPTION Hook functions allowing you to intercept MIDI…

NAME midi_seek – Seeks to the given midi_pos in the current MIDI file. Allegro game programming library. SYNOPSIS #include <allegro.h> int midi_seek(int target); DESCRIPTION Seeks to the given midi_pos in the current MIDI file. If the target is earlier in the file than the current midi_pos it seeks from the beginning; otherwise it seeks from…

NAME midi_recorder – Hook notifying you when new MIDI data becomes available. Allegro game programming library. SYNOPSIS #include <allegro.h> extern void (*midi_recorder)(unsigned char data); DESCRIPTION If set, this function is called by the MIDI input driver whenever a new byte of MIDI data becomes available. It runs in an interrupt context, so it must execute…

NAME midi_pos – Stores the current position in the MIDI file. Allegro game programming library. SYNOPSIS #include <allegro.h> extern volatile long midi_pos; DESCRIPTION Stores the current position (beat number) in the MIDI file, or contains a negative number if no music is currently playing. Useful for synchronising animations with the music, and for checking whether…

NAME midi_out – Streams a block of MIDI commands into the player. Allegro game programming library. SYNOPSIS #include <allegro.h> void midi_out(unsigned char *data, int length); DESCRIPTION Streams a block of MIDI commands into the player in real-time, allowing you to trigger notes, jingles, etc, over the top of whatever MIDI file is currently playing. SEE…

NAME midi_msg_callback, midi_meta_callback, midi_sysex_callback – Hook functions allowing you to intercept MIDI player events. Allegro game programming library. SYNOPSIS #include <allegro.h> extern void (*midi_msg_callback)(int msg, int byte1, int byte2); extern void (*midi_meta_callback)(int type, const unsigned char *data, int length); extern void (*midi_sysex_callback)(const unsigned char *data, int length); DESCRIPTION Hook functions allowing you to intercept MIDI…

NAME midi_msg_callback, midi_meta_callback, midi_sysex_callback – Hook functions allowing you to intercept MIDI player events. Allegro game programming library. SYNOPSIS #include <allegro.h> extern void (*midi_msg_callback)(int msg, int byte1, int byte2); extern void (*midi_meta_callback)(int type, const unsigned char *data, int length); extern void (*midi_sysex_callback)(const unsigned char *data, int length); DESCRIPTION Hook functions allowing you to intercept MIDI…

NAME midi_loop_start, midi_loop_end – Loop start and end points, set by play_looped_midi(). Allegro game programming library. SYNOPSIS #include <allegro.h> extern long midi_loop_start; extern long midi_loop_end; DESCRIPTION The loop start and end points, set by the play_looped_midi() function. These may safely be altered while the music is playing, but you should be sure they are always…

NAME midi_loop_start, midi_loop_end – Loop start and end points, set by play_looped_midi(). Allegro game programming library. SYNOPSIS #include <allegro.h> extern long midi_loop_start; extern long midi_loop_end; DESCRIPTION The loop start and end points, set by the play_looped_midi() function. These may safely be altered while the music is playing, but you should be sure they are always…

NAME init_mib, add_mibdir, init_mib_internals, add_module_replacement, read_module, read_mib, read_all_mibs, read_objid, read_module_node, get_module_node, snmp_set_mib_warnings, snmp_set_save_descriptions, shutdown_mib, print_mib, print_variable, fprint_variable, snprint_variable, sprint_realloc_variable, print_value, fprint_value, snprint_value, sprint_realloc_value, print_objid, fprint_objid, snprint_objid, sprint_realloc_objid, print_description, fprint_description – mib_api functions SYNOPSIS #include <net-snmp/mib_api.h> void init_mib(void); int add_mibdir(const char *dirname); int add_module_replacement(const char *old_module, const char *new_module, const char *tag, int len); void init_mib_internals(void);…

NAME mhash – Hash Library VERSION mhash 0.9.2 SYNOPSIS #include “mhash.h” Informative Functions size_t mhash_count(void); size_t mhash_get_block_size(hashid type); char *mhash_get_hash_name(hashid type); size_t mhash_get_hash_pblock(hashid type); hashid mhash_get_mhash_algo(MHASH); Key Generation Functions int mhash_keygen_ext(keygenid algorithm, KEYGEN algorithm_data, void *keyword, int keysize, unsigned char *password, int passwordlen); Initializing Functions MHASH mhash_init(hashid type); MHASH mhash_hmac_init(const hashid type, void *key, int…

NAME metalink_t – Metalink top level structure. SYNOPSIS #include <metalink/metalink_types.h> DESCRIPTION metalink_t is a top level structure that contains metadata for Metalink file and list of metalink_file_t(3) structure. Typically metalink_t is created by parser function such as metalink_parse_file(3). STRUCTURE MEMBERS metalink_file_t **files; char *identity; char *tags; files Null terminated array of pointer of metalink_file_t(3) structure….

NAME metalink_resource_t – The structure that holds an URL of a resource and its metadata. SYNOPSIS #include <metalink/metalink_types.h> DESCRIPTION metalink_resource_t is a structure that holds an URL of a resource and its metadata. STRUCTURE MEMBERS char *url; char *type; char *location; int preference; int maxconnections; url Null terminated string of URL. type Null terminated string…