mpi_add

#include <stdio.h>
#include "mbedtls/bignum.h"
#include "mbedtls/config.h"

int main(int argc,char* argv[]) {
    int ret=1;
    mbedtls_mpi x, a, b;

    mbedtls_mpi_init(&x);
    mbedtls_mpi_init(&a);
    mbedtls_mpi_init(&b);

    // is this how to initialize two numbers to add?
    a.n=1;
    b.n=2;


    MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(&x,&a,&b));

    printf("Add is: %d\n", x.n);

    cleanup:
    mbedtls_mpi_free( &x ); mbedtls_mpi_free( &a ); mbedtls_mpi_free( &b );

    return 0;
}