How can I wrap a function with variable length arguments?

The problem is that you cannot use ‘printf’ with va_args. You must use vprintf if you are using variable argument lists. vprint, vsprintf, vfprintf, etc. (there are also ‘safe’ versions in Microsoft’s C runtime that will prevent buffer overruns, etc.)

You sample works as follows:

void myprintf(char* fmt, ...)
    va_list args;
    va_start(args, fmt);
    vprintf(fmt, args);

int _tmain(int argc, _TCHAR* argv[])
    int a = 9;
    int b = 10;
    char v = 'C';
    myprintf("This is a number: %d and \nthis is a character: %c and \n another number: %d\n", a, v, b);
    return 0;

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