Advanced Programming in the UNIX® Environment

ptg10805159

Appendix A Function Prototypes 891

int vdprintf(intfd,const char *restrictformat,va_listarg);

<stdarg.h> p. 161

<stdio.h>

Returns: number of characters output if OK, negative

value if output error

int vfprintf(FILE *restrictfp,const char *restrictformat,

va_listarg);

<stdarg.h> p. 161

<stdio.h>

Returns: number of characters output if OK, negative

value if output error

int vfscanf(FILE *restrictfp,const char *restrictformat,

va_listarg);

<stdarg.h> p. 163

<stdio.h>

Returns: number of input items assigned,EOFif input error

or end of file beforeany conversion

int vprintf(const char *restrictformat,va_listarg);

<stdarg.h> p. 161

<stdio.h>

Returns: number of characters output if OK, negative

value if output error

int vscanf(const char *restrictformat,va_listarg);

<stdarg.h> p. 163

<stdio.h>

Returns: number of input items assigned,EOFif input error

or end of file beforeany conversion

int vsnprintf(char *restrictbuf,size_tn,

const char *restrictformat,va_listarg);

<stdarg.h> p. 161

<stdio.h>

Returns: number of characters that would have been stored

in array if buffer was large enough, negative value

if encoding error

int vsprintf(char *restrictbuf,const char *restrictformat,

va_listarg);

<stdarg.h> p. 161

<stdio.h>

Returns: number of characters stored in array if OK, negative

value if encoding error