Advanced Programming in the UNIX® Environment

ptg10805159

854 Function Prototypes Appendix A

int fprintf(FILE *restrictfp,const char *restrictformat,...);

<stdio.h> p. 159

Returns: number of characters output if OK, negative value

if output error

int fputc(intc,FILE *fp);

<stdio.h> p. 152

Returns:cif OK,EOFon error

int fputs(const char *restrictstr,FILE *restrict fp);

<stdio.h> p. 153

Returns: non-negative value if OK,EOFon error

size_t fread(void *restrictptr,size_tsize,size_tnobj,

FILE *restrictfp);

<stdio.h> p. 156

Returns: number of objects read

void free(void *ptr);

<stdlib.h> p. 207

void freeaddrinfo(struct addrinfo *ai);

<sys/socket.h> p. 599

<netdb.h>

FILE *freopen(const char *restrictpath,const char *restricttype,

FILE *restrictfp);

<stdio.h> p. 148

type:"r", "w", "a", "r+", "w+", "a+"

Returns: file pointer if OK,NULLon error

int fscanf(FILE *restrictfp,const char *restrictformat,...);

<stdio.h> p. 162

Returns: number of input items assigned,EOFif input

error or end of file beforeany conversion

int fseek(FILE *fp,longoffset,intwhence);

<stdio.h> p. 158

whence:SEEK_SET, SEEK_CUR, SEEK_END

Returns: 0 if OK,−1 on error

int fseeko(FILE *fp,off_toffset,intwhence);

<stdio.h> p. 158

whence:SEEK_SET, SEEK_CUR, SEEK_END

Returns: 0 if OK,−1 on error