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steph1340
28.07.2020 •
Computers and Technology
The following questions refer to the skeletal C++ program shown below.
(a) Assume that static scoping is used. List all variables, along with the functions in which they are declared, that are visible at Line 1 in the program.
(b) Repeat part (a), but list the variables that are visible at Line 2.
(c) Repeat part (a), but list the variables that are visible at Line 3.
(d) Repeat part (a), but list the variables that are visible at Line 4.
(e) Repeat part (a), but list the variables that are visible at Line 5.
(f) Assume that dynamic scoping is used, and that main calls f1, which calls f2. (Assume that f1 calls f2 on Line 3.) List all variables, along with the functions in which they are declared, that are visible at Line 5 in the program.
void fl ();
void f2();
int a, b, c;
int main()
{int a, b, d; ...
//Line 1}
void fl()
{int d, e;
if (...)
{int a, b; ...
//Line 2} ...
//Line 3}
void f2()
{int a, c; if (...)
{int b, c; ...
//Line 4} ...
//Line 5}
Here's an example of the format that you should use for your answers: a (global), d (declared in fl), e (declared in if block in fl)
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Ответ:
A computer system normally stores characters using the ASCII code. Each character is stored using eight bits of information, giving a total number of 256 different characters