typedef char mytype[100];

      1 #include <stdio.h>
      2 #include <stdlib.h>
      3
      4 typedef char mytype[100];
      5
      6 int main()
      7 {
      8     mytype a;
      9     printf("sizeof(a) = %d/n", sizeof(a));
     10     printf("sizeof(mytype) = %d/n" ,sizeof(mytype));
     11     return 0;
     12 }

~/testbench> gcc -o test test.c
~/testbench> ./test
sizeof(a) = 100
sizeof(mytype) = 100