pSOSystem System Calls - Read

pREPC+ System Calls vfprintf
vfprintf Writes formatted output to a stream.
#include
#include
int vfprintf(
FILE *stream, /* stream pointer */
const char *format, /* format control */
va_list arg /* argument list */
)
Description
Arguments
Return Value
Error Codes
The vfprintf() function is equivalent to fprintf(), with the variable argument
list replaced by arg, which should have been initialized by the va_start macro
(and possibly subsequent va_arg calls). The vfprintf function does not invoke
the va_end macro.
stream Points to an open pREPC+ stream.
format Points to the format control string. For more information,
see fprintf on page 3-43.
arg A list of arguments to be written according to the
specifications of the format control string.
This function returns the number of characters written. If a write error occurs, this
function returns a negative number and sets errno.
Refer to Appendix B.
pSOSystem System Calls 3-183
3