Skip to content
EMPS intranet

Back to top
Hi!   Hi!           Start program

Try stepping through the code


  Value and type of last evaluated expression: Address of array element: Address of array elementx:  (none)

Your browser does not support the canvas element which will make some the features unavailable.

If you are using Internet Explorer within the University of Exeter try going to the Settings menu (probably the gear shape at the top right of this page), selecting "Compatibility View settings", unchecking "Display intranet sites in Compatibility View" and reloading this page.

Code

 Header...
int main(){ » double materials, labour, total_cost; » materials=9.4; » labour=11.3; » total_cost=materials+labour; » printf("The first cost is %g\n", total_cost); » materials=14.3; // <span id='comment_gone'>The old value of materials has gone forever</span> /*@gone*/»labour=21.2; » total_cost=materials+labour; » printf("The second cost is %g\n", total_cost); » return 0; }
...

Data

materials (double)   labour (double)
128   136
-5.05125498e+136
  
2.78888424e-157
total_cost (double)
144
1.34070901e+192

Memory

main()

128
129
130
131
132
133
134
135
materials = -5.05125498e+136
136
137
138
139
140
141
142
143
labour = 2.78888424e-157
144
145
146
147
148
149
150
151
total_cost = 1.34070901e+192

NB: the actual memory address of each variable is the
address shown plus 4287766256 (0xFF921EF0).

Show Advanced options

.
Show output (Before looking at the output, work out what you think it put should be and see if you are right.)

Output

The first cost is 20.7
The second cost is 35.5
                                                                                                                                                                                                                                                                       

Validate   Link-check © Copyright & disclaimer Share
Back to top