Section 3: library functions
pmAtomStr, pmAtomStr_r – convert a performance metric value into a string C Synopsis #include <pcp/pmapi.h> const char *pmAtomStr(const pmAtomValue *avp, int type); char *pmAtomStr_r(const pmAtomValue *avp, int type, char *buf, int buflen); cc … -lpcp Description All performance metric values may be encoded in a pmAtomValue union, defined as follows; typedef union { __int32_t l;…
pmAddProfile – add instance(s) to the current PMAPI instance profile C Synopsis #include <pcp/pmapi.h> int pmAddProfile(pmInDom indom, int numinst, int *instlist); cc … -lpcp Description The set of instances for performance metrics returned from a pmFetch(3) call may be filtered or restricted using an instance profile. There is one instance profile for each context the…
play_sample – Plays a sample. Allegro game programming library. Synopsis #include <allegro.h> int play_sample(const SAMPLE *spl, int vol, int pan, int freq, int loop); Description Triggers a sample at the specified volume, pan position, and frequency. The parameters `vol’ and `pan’ range from 0 (min/left) to 255 (max/right). Frequency is relative rather than absolute: 1000…
play_midi – Starts playing the specified MIDI file. Allegro game programming library. Synopsis #include <allegro.h> int play_midi(MIDI *midi, int loop); Description Starts playing the specified MIDI file, first stopping whatever music was previously playing. If the loop flag is set to non-zero, the data will be repeated until replaced with something else, otherwise it will…
play_memory_fli – Plays a FLI or FLC animation from memory. Allegro game programming library. Synopsis #include <allegro.h> int play_memory_fli(const void *fli_data, BITMAP *bmp, int loop, int (*callback)()); Description Plays an Autodesk Animator FLI or FLC animation on the specified BITMAP, reading the data from a copy of the file which is held in memory. You…
play_looped_midi – Starts playing a MIDI file with a user-defined loop position. Allegro game programming library. Synopsis #include <allegro.h> int play_looped_midi(MIDI *midi, int loop_start, int loop_end); Description Starts playing a MIDI file with a user-defined loop position. When the player reaches the loop end position or the end of the file (loop_end may be -1…
play_fli – Plays a FLI or FLC animation from disk. Allegro game programming library. Synopsis #include <allegro.h> int play_fli(const char *filename, BITMAP *bmp, int loop, int (*callback)()); Description Plays an Autodesk Animator FLI or FLC animation file on the specified BITMAP, reading the data from disk as it is required. If `loop’ is not zero,…
play_audio_stream – Creates a new audio stream and starts playing it. Allegro game programming library. Synopsis #include <allegro.h> AUDIOSTREAM *play_audio_stream(int len, int bits, int stereo, int freq, int vol, int pan); Description This function creates a new audio stream and starts playing it. The length is the size of each transfer buffer in sample frames…
pj_init – initialize cartographic projection pj_init_plus – initialize cartographic projection pj_fwd – forward cartographic projection pj_inv – inverse cartographic projection pj_transform – transform between coordinate systems pj_free – de-initialize projection Synopsis #include <proj_api.h> projPJ pj_init(int argc, char **argv) projPJ pj_init_plus(const char *defn) projUV pj_fwd(projUV val, projPJ proj) projUV pj_inv(projUV val, projPJ proj) int pj_transform(projPJ src_cs,…
pivot_sprite_v_flip – Rotates and flips a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_sprite_v_flip(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle); Description Like rotate_sprite_v_flip(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap, then rotates…
pivot_sprite – Rotates a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle); Description Like rotate_sprite(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap, then rotates around this…
pivot_scaled_sprite_v_flip – Rotates, stretches and flips a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_scaled_sprite_v_flip(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle, fixed scale); Description Like rotate_scaled_sprite_v_flip(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the…
pivot_scaled_sprite – Rotates and stretches a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_scaled_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle, fixed scale); Description Like rotate_scaled_sprite(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap,…
pidfile_open pidfile_write pidfile_close pidfile_remove – library for PID files handling Library Lb libbsd Synopsis In bsd/libutil.h Ft struct pidfh * Fn pidfile_open const char *path mode_t mode pid_t *pidptr Ft int Fn pidfile_write struct pidfh *pfh Ft int Fn pidfile_close struct pidfh *pfh Ft int Fn pidfile_remove struct pidfh *pfh Description The pidfile family of…
system_data_types – overview of system data types Description aiocb Include: <aio.h>. struct aiocb { int aio_fildes; /* File descriptor */ off_t aio_offset; /* File offset */ volatile void *aio_buf; /* Location of buffer */ size_t aio_nbytes; /* Length of transfer */ int aio_reqprio; /* Request priority offset */ struct sigevent aio_sigevent; /* Signal number and…
persp_project, persp_project_f – Projects a 3d point into 2d screen space. Allegro game programming library. Synopsis #include <allegro.h> void persp_project(fixed x, fixed y, fixed z, fixed *xout, fixed *yout); void persp_project_f(float x, float y, float z, float *xout, float *yout); Description Projects the 3d point (x, y, z) into 2d screen space, storing the result…
persp_project, persp_project_f – Projects a 3d point into 2d screen space. Allegro game programming library. Synopsis #include <allegro.h> void persp_project(fixed x, fixed y, fixed z, fixed *xout, fixed *yout); void persp_project_f(float x, float y, float z, float *xout, float *yout); Description Projects the 3d point (x, y, z) into 2d screen space, storing the result…
perror – print a system error message Synopsis #include <stdio.h> void perror(const char *s); #include <errno.h> const char * const sys_errlist[]; int sys_nerr; int errno; /* Not really declared this way; see errno(3) */ Feature Test Macro Requirements for glibc (see feature_test_macros(7)): sys_errlist, sys_nerr: From glibc 2.19 to 2.31: _DEFAULT_SOURCE Glibc 2.19 and earlier: _BSD_SOURCE…
QuantLib::EnergyBasisSwap – Energy basis swap. Synopsis void performCalculations () const Protected Attributes Inherits QuantLib::EnergySwap. Public Member Functions EnergyBasisSwap (const Calendar &calendar, const boost::shared_ptr< CommodityIndex > &spreadIndex, const boost::shared_ptr< CommodityIndex > &payIndex, const boost::shared_ptr< CommodityIndex > &receiveIndex, bool spreadToPayLeg, const Currency &payCurrency, const Currency &receiveCurrency, const PricingPeriods &pricingPeriods, const CommodityUnitCost &basis, const CommodityType &commodityType, const boost::shared_ptr<…
QuantLib::NonLinearLeastSquare – Non-linear least-square method. Synopsis NonLinearLeastSquare (Constraint &c, Real accuracy=1e-4, Size maxiter=100) Default constructor. NonLinearLeastSquare (Constraint &c, Real accuracy, Size maxiter, boost::shared_ptr< OptimizationMethod > om) Default constructor. ~NonLinearLeastSquare () Destructor. Array & perform (LeastSquareProblem &lsProblem) Solve least square problem using numerix solver. void setInitialValue (const Array &initialValue) Array & results () return the results…