everest% cc realloc.c
everest% 

everest% a.out
Enter numbers, 1 per line. End with ctrl-D
? 1
? 2
? ^D 
Contents of the array A:
 1  2 
everest% 

everest% a.out
Enter numbers, 1 per line. End with ctrl-D
? 1
? 2
? 3
? 4
? 5
? 6
DEBUG: reallocating A ... 
? ^D
Contents of the array A:
 1  2  3  4  5  6 
everest% a.out
Enter numbers, 1 per line. End with ctrl-D
? 1
? 2
? 3
? 4
? 5
? 6
DEBUG: reallocating A ... 
? 7
? 8
? 9
? 10
? 11
DEBUG: reallocating A ... 
? 12
? 13
? 14
? 15
? 16
? 17
? 18
? 19
? 20
? 21
DEBUG: reallocating A ... 
? 22
? ^D
Contents of the array A:
 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 
everest%