如何在不修改接收函數的情況下將變數參數從一個函數傳遞到另一個函數？

void example(int a, int b, ...);
void exampleB(int b, ...);

#include <stdarg.h>
static void exampleV(int b, va_list args);

void exampleA(int a, int b, ...)    // Renamed for consistency
{
    va_list args;
    do_something(a);                 // Use argument a somehow
    va_start(args, b);
    exampleV(b, args);
    va_end(args);
}

void exampleB(int b, ...)
{
    va_list args;
    va_start(args, b);
    exampleV(b, args);
    va_end(args);
}

static void exampleV(int b, va_list args)
{
    // Whatever `exampleB` was intended to do...
    // Except it doesn't call either `va_start` or `va_end`.
}