Extend the language and compile
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Book : Peter Sestof -
Page: 158 pdf
Exercise 8.9
Extend the language and compiler to accept initialized declarations such as int i = j + 32; Doing this for local variables (inside functions) should not be too hard. For global ones it requires more changes.
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- Topic: Concepts of programming Language 4. a) Consider the following JavaScript program: var a, y, c;function sub1() {var b, z, c;function sub2() {var a, b, y;. . .}. . .}function sub3() {var a, x, w;. . .}List all the variables, along with the program units where they are declared,that are visible in the bodies of sub2 when the sequence of function call is:“sub1 calls sub3 and sub3 calls sub2”, assuming dynamic scoping is used.Describe a situation where the add operator in a programming languagewould not be commutative. ____________________________________________________________________ Let the function fun be defined asint fun(int *k) { *k += 4; return 3 * (*k) – 1;}Suppose fun is used in a program as follows:void main(){ int i = 10, j = 10, sum1, sum2;sum1 = (i/2) + fun(&i);sum2 = fun(&j) + (j/2);}What are the values of sum1 and sum2a. if the operands in the expressions are evaluated left to the right?b. if the operands in the expressions are evaluated right to the left?True or False : The concept of function abstraction hinders our code development by confusing us with the details of the function.
- Concepts of programming language Consider the following JavaScript program: var a, y, c;function sub1() {var b, z, c;function sub2() {var a, b, y;. . .}. . .}function sub3() {var a, x, w;. . .}List all the variables, along with the program units where they are declared,that are visible in the bodies of sub2 when the sequence of function call is:“sub1 calls sub3 and sub3 calls sub2”, assuming dynamic scoping is used.What is operator overloading used for?A. When a program makes too many function calls to the operating system.B. To create data structures.C. To use operators, such as the plus sign (+), on different types of data to simplify code.D. Inheritance.What exactly is modular programming? Make a list of all the details regarding returning and non-returning functions. Distinguish their prototype, definition, and function call. Extend your explanation with examples from sources other than the text. Also, clarify the concepts of pass by value and pass by reference. in the PROGRAMMING LANGUAGE C (Programming language C)
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