everest% cc sum1.c
everest% 

everest% a.out
sum A[0..4] = 19
sum A[0..0] =  1
sum A[0..1] =  5
everest% 

everest% cc sum2.c
everest% 

everest% a.out
sum A[0..4] = 19
sum A[0..0] =  1
sum A[0..1] =  5
everest% 

everest% cc sum3.c
everest% 

everest% a.out
sum A[0..4] = 19
sum A[0..0] =  1
sum A[0..1] =  5
everest%