#include <stdio.h>
#include <reent.h>

int main()
{
    _REENT_INIT_PTR(_impure_ptr);
    printf("reent struct size: %d bytes\n",sizeof(struct _reent));
    printf("reent pointer : 0x%08x\n",_impure_ptr);
    printf("reent pointer : 0x%08x\n",_impure_ptr);
}