Q.Rewrite the following C++ program after removing any/all syntactical error(s). Underline each correction done in the code: Note : Assume all required header files are already included in the program. #define Area(L,B) = L*B structure Recta { int Length,Breadth; }; void main() { Recta R = [10,15]; cout<<Area(Length.R,Breadth.R); }

Concept: C++ syntax rules for macros, structures, object initialization, member access, and the main function return type.

The original code has five errors:

1. Macro definition – the = sign is illegal in #define; macros use direct substitution without assignment.
2. Structure keyword – C++ uses struct, not structure.
3. Object initialization – curly braces {} are required, not square brackets [].
4. Member access – the dot operator syntax is object.member, not member.object.
5. Main return type – standard C++ requires int main(), not void main().

Corrected code:

#define Area(L,B) L*B
struct Recta
{
    int Length, Breadth;
};
int main()
{
    Recta R = {10, 15};
    cout << Area(R.Length, R.Breadth);
    return 0;
}

Each underlined correction:

• Line 1: #define Area(L,B) <u>L*B</u> (removed =)
• Line 2: <u>struct</u> Recta (changed structure to struct) …

This is a debugging exercise that tests your understanding of C++ syntax across macros, structures, initialization, and member access. Each error violates a specific rule of C++ grammar.

The original code attempts to define a macro for calculating area, declare a structure for a rectangle, create an instance, and print the area. However, it contains multiple syntax violations that prevent compilation.

Errors and Corrections

1. Macro definition with assignment operator

   The line #define Area(L,B) = L*B is incorrect because preprocessor macros don't use =. A macro definition directly replaces tokens.

   Correction: <u>#define Area(L,B) L*B</u>

2. Wrong keyword for structure

   C++ uses struct, not structure.

   Correction: <u>struct Recta</u>

3. Invalid initialization syntax

   The line Recta R = [10,15]; uses square brackets, which is not valid for structure initialization in C++. Aggregate initialization requires curly braces.

   Correction: <u>Recta R = {10,15};</u>

4. Incorrect member access syntax

   Length.R reverses the correct order. The object name comes first, then the dot operator, then the member name.

   Correction: <u>R.Length</u> and <u>R.Breadth</u>

5. Wrong return type for main()

   In standard C++, main() must return int, not void. …