Function lwprintf_vprintf_ex 

pub unsafe extern "C" fn lwprintf_vprintf_ex(
    lwobj: *mut lwprintf_s,
    format: *const c_char,
    arg: VaList<'_>,
) -> c_int

Print formatted data from variable argument list to the output.

Arguments

• lwobj - LwPRINTF instance. Set to NULL to use default instance.
• format - C string that contains the text to be written to output.
• arg - A value identifying a variable arguments list initialized with va_start. va_list is a special type defined in cstdarg.