Advanced Programming in the UNIX® Environment

ptg10805159

856 Function Prototypes Appendix A

int fwide(FILE *fp,intmode);

<stdio.h> p. 144

<wchar.h>

Returns: positive if stream is wide oriented, negative if stream

is byte oriented, or 0 if stream has no orientation

size_t fwrite(const void *restrictptr,size_tsize,size_tnobj,

FILE *restrictfp);

<stdio.h> p. 156

Returns: number of objects written

const

char *gai_strerror(interror);

<netdb.h> p. 600

Returns: a pointer to a string describing the error

int getaddrinfo(const char *restricthost,

const char *restrictservice,

const struct addrinfo *restricthint,

struct addrinfo **restrictres);

<sys/socket.h> p. 599

<netdb.h>

Returns: 0 if OK, nonzeroerror code on error

int getc(FILE *fp);

<stdio.h> p. 150

Returns: next character if OK,EOFon end of file or error

int getchar(void);

<stdio.h> p. 150

Returns: next character if OK,EOFon end of file or error

int getchar_unlocked(void);

<stdio.h> p. 444

Returns: the next character if OK,EOFon end of file or error

int getc_unlocked(FILE *fp);

<stdio.h> p. 444

Returns: the next character if OK,EOFon end of file or error

char *getcwd(char *buf,size_tsize);

<unistd.h> p. 136

Returns:bufif OK,NULLon error

gid_t getegid(void);

<unistd.h> p. 228

Returns: effective group ID of calling process