SysTutorials Posts

NAME getipnodebyname, getipnodebyaddr, freehostent – get network hostnames and addresses SYNOPSIS #include <netdb.h> #include <sys/socket.h> #include <sys/types.h> struct hostent *getipnodebyname(const char *name, int af, int flags, int *error_num); struct hostent *getipnodebyaddr(const void *addr, size_t len, int af, int *error_num); void freehostent(struct hostent *ip); DESCRIPTION These functions are deprecated (and unavailable in glibc). Use getaddrinfo(3) and…

NAME getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process SYNOPSIS #include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context);…

NAME getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process SYNOPSIS #include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context);…

NAME getaddrinfo, freeaddrinfo, gai_strerror – network address and service translation SYNOPSIS #include <netdb.h> #include <sys/socket.h> #include <sys/types.h> int getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res); void freeaddrinfo(struct addrinfo *res); const char *gai_strerror(int errcode); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getaddrinfo(), freeaddrinfo(), gai_strerror():     Since glibc 2.22: _POSIX_C_SOURCE >= 200112L     Glibc 2.21…

NAME free_config_entries – Frees memory allocated for config entry lists. Allegro game programming library. SYNOPSIS #include <allegro.h> int free_config_entries(const char ***names); DESCRIPTION Once you are done with the string arrays filled in by list_config_entries and list_config_sections, you can free them again with this function. The passed array pointer will be set to NULL, and you…

NAME free_audio_stream_buffer – Tells the audio stream player new data can be played. Allegro game programming library. SYNOPSIS #include <allegro.h> void free_audio_stream_buffer(AUDIOSTREAM *stream); DESCRIPTION Call this function after get_audio_stream_buffer() returns a non-NULL address, to indicate that you have loaded a new block of samples to that location and the data is now ready to be…

NAME malloc, free, calloc, realloc, reallocarray – allocate and free dynamic memory SYNOPSIS #include <stdlib.h> void *malloc(size_t size); void free(void *ptr); void *calloc(size_t nmemb, size_t size); void *realloc(void *ptr, size_t size); void *reallocarray(void *ptr, size_t nmemb, size_t size); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): reallocarray():     Since glibc 2.29:         _DEFAULT_SOURCE     Glibc 2.28 and earlier:…

NAME getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked – nonlocking stdio functions SYNOPSIS #include <stdio.h> int getc_unlocked(FILE *stream); int getchar_unlocked(void); int putc_unlocked(int c, FILE *stream); int putchar_unlocked(int c); void clearerr_unlocked(FILE *stream); int feof_unlocked(FILE *stream); int ferror_unlocked(FILE *stream); int fileno_unlocked(FILE *stream); int fflush_unlocked(FILE *stream); int fgetc_unlocked(FILE *stream); int fputc_unlocked(int c, FILE *stream); size_t fread_unlocked(void *ptr, size_t size, size_t n,…

NAME fread, fwrite – binary stream input/output SYNOPSIS #include <stdio.h> size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream); size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream); DESCRIPTION The function fread() reads nmemb items of data, each size bytes long, from the stream pointed to by stream, storing them at the location given…

QuantLib::Currency – Currency specification Synopsis #include <ql/currency.hpp> Inherited by ARSCurrency, ATSCurrency, AUDCurrency, BDTCurrency, BEFCurrency, BGLCurrency, BRLCurrency, BYRCurrency, CADCurrency, CHFCurrency, CLPCurrency, CNYCurrency, COPCurrency, CYPCurrency, CZKCurrency, DEMCurrency, DKKCurrency, EEKCurrency, ESPCurrency, EURCurrency, FIMCurrency, FRFCurrency, GBPCurrency, GRDCurrency, HKDCurrency, HUFCurrency, IEPCurrency, ILSCurrency, INRCurrency, IQDCurrency, IRRCurrency, ISKCurrency, ITLCurrency, JPYCurrency, KRWCurrency, KWDCurrency, LTLCurrency, LUFCurrency, LVLCurrency, MTLCurrency, MXNCurrency, NLGCurrency, NOKCurrency, NPRCurrency, NZDCurrency, PEHCurrency,…

NAME QuantLib::PagodaOption – Roofed Asian option on a number of assets. SYNOPSIS #include <ql/instruments/pagodaoption.hpp> Inherits QuantLib::MultiAssetOption. Classes class engine Pagoda-option engine base class Public Member Functions PagodaOption (const std::vector< Date > &fixingDates, Real roof, Real fraction) void setupArguments (PricingEngine::arguments *) const Protected Attributes std::vector< Date > fixingDates_ Real roof_ Real fraction_ Detailed Description Roofed Asian…

QuantLib::Currency – Currency specification Synopsis #include <ql/currency.hpp> Inherited by ARSCurrency, ATSCurrency, AUDCurrency, BDTCurrency, BEFCurrency, BGLCurrency, BRLCurrency, BYRCurrency, CADCurrency, CHFCurrency, CLPCurrency, CNYCurrency, COPCurrency, CYPCurrency, CZKCurrency, DEMCurrency, DKKCurrency, EEKCurrency, ESPCurrency, EURCurrency, FIMCurrency, FRFCurrency, GBPCurrency, GRDCurrency, HKDCurrency, HUFCurrency, IEPCurrency, ILSCurrency, INRCurrency, IQDCurrency, IRRCurrency, ISKCurrency, ITLCurrency, JPYCurrency, KRWCurrency, KWDCurrency, LTLCurrency, LUFCurrency, LVLCurrency, MTLCurrency, MXNCurrency, NLGCurrency, NOKCurrency, NPRCurrency, NZDCurrency, PEHCurrency,…

NAME getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked – nonlocking stdio functions SYNOPSIS #include <stdio.h> int getc_unlocked(FILE *stream); int getchar_unlocked(void); int putc_unlocked(int c, FILE *stream); int putchar_unlocked(int c); void clearerr_unlocked(FILE *stream); int feof_unlocked(FILE *stream); int ferror_unlocked(FILE *stream); int fileno_unlocked(FILE *stream); int fflush_unlocked(FILE *stream); int fgetc_unlocked(FILE *stream); int fputc_unlocked(int c, FILE *stream); size_t fread_unlocked(void *ptr, size_t size, size_t n,…

NAME fputws – write a wide-character string to a FILE stream SYNOPSIS #include <wchar.h> int fputws(const wchar_t *ws, FILE *stream); DESCRIPTION The fputws() function is the wide-character equivalent of the fputs(3) function. It writes the wide-character string starting at ws, up to but not including the terminating null wide character (L’

NAME getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked – nonlocking stdio functions SYNOPSIS #include <stdio.h> int getc_unlocked(FILE *stream); int getchar_unlocked(void); int putc_unlocked(int c, FILE *stream); int putchar_unlocked(int c); void clearerr_unlocked(FILE *stream); int feof_unlocked(FILE *stream); int ferror_unlocked(FILE *stream); int fileno_unlocked(FILE *stream); int fflush_unlocked(FILE *stream); int fgetc_unlocked(FILE *stream); int fputc_unlocked(int c, FILE *stream); size_t fread_unlocked(void *ptr, size_t size, size_t n,…

NAME fputwc, putwc – write a wide character to a FILE stream SYNOPSIS #include <stdio.h> #include <wchar.h> wint_t fputwc(wchar_t wc, FILE *stream); wint_t putwc(wchar_t wc, FILE *stream); DESCRIPTION The fputwc() function is the wide-character equivalent of the fputc(3) function. It writes the wide character wc to stream. If ferror(stream) becomes true, it returns WEOF. If…

NAME getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked – nonlocking stdio functions SYNOPSIS #include <stdio.h> int getc_unlocked(FILE *stream); int getchar_unlocked(void); int putc_unlocked(int c, FILE *stream); int putchar_unlocked(int c); void clearerr_unlocked(FILE *stream); int feof_unlocked(FILE *stream); int ferror_unlocked(FILE *stream); int fileno_unlocked(FILE *stream); int fflush_unlocked(FILE *stream); int fgetc_unlocked(FILE *stream); int fputc_unlocked(int c, FILE *stream); size_t fread_unlocked(void *ptr, size_t size, size_t n,…

NAME fputc, fputs, putc, putchar, puts – output of characters and strings SYNOPSIS #include <stdio.h> int fputc(int c, FILE *stream); int fputs(const char *s, FILE *stream); int putc(int c, FILE *stream); int putchar(int c); int puts(const char *s); DESCRIPTION fputc() writes the character c, cast to an unsigned char, to stream. fputs() writes the string…

NAME getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked – nonlocking stdio functions SYNOPSIS #include <stdio.h> int getc_unlocked(FILE *stream); int getchar_unlocked(void); int putc_unlocked(int c, FILE *stream); int putchar_unlocked(int c); void clearerr_unlocked(FILE *stream); int feof_unlocked(FILE *stream); int ferror_unlocked(FILE *stream); int fileno_unlocked(FILE *stream); int fflush_unlocked(FILE *stream); int fgetc_unlocked(FILE *stream); int fputc_unlocked(int c, FILE *stream); size_t fread_unlocked(void *ptr, size_t size, size_t n,…

NAME fputc, fputs, putc, putchar, puts – output of characters and strings SYNOPSIS #include <stdio.h> int fputc(int c, FILE *stream); int fputs(const char *s, FILE *stream); int putc(int c, FILE *stream); int putchar(int c); int puts(const char *s); DESCRIPTION fputc() writes the character c, cast to an unsigned char, to stream. fputs() writes the string…