Lista de argumentos variable en funciones

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <stdarg.h>
int myprint(const char *fmt, ... )
{

const char *p;
    va_list argp;
    int i;
    int integers=0;
    //char *s;
    //char fmtbuf[256];

    va_start(argp, fmt);

    for(p = fmt; *p != '\0'; p++){

        if(*p != '&')
        {
            printf ("%c",*p);
            continue;
        }else {
            i = va_arg(argp, int);
            printf ("%d",i);
            integers++;
        }

    }

    va_end(argp);
    return integers;
};


int main(void)
{
    myprint("Hello!\n");

    myprint("Number: &\n", 5);
    myprint("Number one: &, number two: &\n", 120, 1345);
    int ret = myprint("Three numbers: & & &\n", 12, 444, 5555);
    myprint("I just printed & integers\n", ret);

}

/*


Objective: Learn variable length argument lists

Implement function myprint that prints a variable number of integers to standard output stream following the format
indicated by a given format string.
The function can take variable number of arguments:
 the first argument is always a (constant) format string (as in printf),
 but the number of other arguments depends on the format string.

 Our output function is a simpler version of printf: it can only print integers.
 myprint differs from traditional printf by using character & as the format specifier
 that should be substituted by the integer indicated at the respective position in the argument list.
  Because we only output integers, this simple format specifier will suffice.

For example, this is one valid way of calling the function: myprint("Number one: &, number two: &\n", 120, 1345);

The function should return an integer, that indicates how many format specifiers (and integer arguments) were included in the given format string.

In this exercise you will get just empty C source files to fill in. Read the above description (and main.c) carefully to figure out how the function prototype should look like. You'll need to modify both myprint.c and myprint.h.

If your implementation works correctly, the default main function (in main.c) should output the following:

Hello!
Number: 5
Number one: 120, number two: 1345
Three numbers: 12 444 5555
I just printed 3 integers

Hint: As a reminder, strchr will return pointer to the next instance of given character from a string, and fputc will output one character at a time. You may or may not want to use these functions.

*/