vscnprintf(9)
NAME
vscnprintf - Format a string and place it in a buffer
SYNOPSIS
int vscnprintf(char * buf, size_t size, const char * fmt,
va_list args);
ARGUMENTS
- buf
- The buffer to place the result into
- size
- The size of the buffer, including the trailing null space
- fmt
- The format string to use
- args
- Arguments for the format string
DESCRIPTION
The return value is the number of characters which have been written
into the buf not including the trailing ´\0´. If size is <= 0 the
function returns 0.
Call this function if you are already dealing with a va_list. You
probably want scnprintf instead.