The table below shows the contents of several memory locations. All numbers are

Question

The table below shows the contents of several memory locations. All numbers are shown in decimal.

1028

1056

1076

d

1008

1016

1032

1088

f

Using these values evaluate each of the expressions four ways. First assume that each of the variables are integers and define the expressions R-value. then find its L-value, and give the address of the location its specifies. Next assume all variable are pointers to integers and repeat the exercise.

Address Contents a 1040

1028

c

1056

1076

d

1008

1016

e

1032

1088

f

1052 1044 g 1000 1064 h 1080 1020 i 1020 1080 j 1064 1000 k 1044 1052 m 1016 1008 n 1076 1056 o 1096 1924 q 1084 1072 r 1068 1048 s 1004 2000 t 1060 1012 u 1036 1092

Explanation / Answer

v - w =                   //undefined                               //undefined

&c =                       1056                                    1056

&e + 1 =               1032+2 = 1034                       1032 + 4 = 1036

&o – 4 =               1096 – 4*2 = 1088                   1096 – 4*4 = 1088                                            

&(f + 2) =             //error                                    //error

*g =                       1000                                      1000

*k + 1 =                1045                                       1044 + 1*4 = 1048

*( n + 1) =            no data at 1057                no data at 1058

*h – 4 =                1076                                       1080 – 4*2 = 1072

Column 1 is for: First assume that each of the variables are integers and define the expressions R-value. then find its L-value, and give the address of the location its specifies.

column 2 is for assume all variable are pointers to integers and repeat the exercise.

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