how to find that a system is little endian or big endian

int man ()
{
Int i =1;/initialise int variable by 1/
Char *p;/take char pointer/
p = &i /point var i by using char pointer/
If (*p) /if this condition is true then LSB is stored first/
Printf ("llittle endian");
else
printf ("big endian");
return 0;
}