Example trace

// Store 1 + 2 + 3 + 4 in s

s= 0; i= 1;

// General picture: s= 0 + 1 + 2 + � + i-1.

while (i != 5)

{s= s + i; i= i+1;}

Execution trace:

i | ? | 1 | | 2 | | 3 | | 4 | | 5 |

s | 0 | | 1 | | 3 | | 6 | | 10 | |

Previous slide

Next slide

Back to first slide

View graphic version