Zilog EZ80F916 - Manual (Page 397)

UM014423-0607 C Standard Library
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
377
va_start(ap, n_ptrs);
while (ptr_no < n_ptrs)
array[ptr_no++] = va_arg(ap, char *);
va_end(ap);
f2(n_ptrs, array);
}
Each call to f1 has in scope the definition of the function of a declaration such as void
f1(int, ...);
vprintf
Equivalent to printf , with the variable argument list replaced by arg, which has been ini-
tialized by the va_start macro (and possibly subsequent va_arg calls). The vprintf
function does not invoke the va_end function.
Synopsis
#include
#include
int vprintf(char *format, va_list arg);
Returns
The number of characters transmitted or a negative value if an output error occurred.
Example
va_list va;
/* initialize the variable argument va here */
vprintf("%d %d %d",va);
vsprintf
Equivalent to sprintf , with the variable argument list replaced by arg, which has been
initialized by the va_start macro (and possibly subsequent va_arg calls). The
vsprintf function does not invoke the va_end function.
Synopsis
#include
#include
int vsprintf(char *s, char *format, va_list arg);
Returns
The number of characters written in the array, not counting the terminating null character.