Step by Step solution about How to resolve the algorithm Comments step by step in the C programming language

This is a C program that contains various types of comments. Comments are ignored by the compiler and are used to provide information to the user about the program.

Here is a description of each type of comment in the code:

1. Single-line comments: This type of comment starts with two forward slashes (//) and ends at the end of the line. Everything between the two slashes is ignored by the compiler. For example, the following is a single-line comment:

// This is a single-line comment.

2. Multi-line comments: This type of comment starts with a slash and an asterisk (/*) and ends with an asterisk and a slash (*/). Everything between the two delimiters is ignored by the compiler. For example, the following is a multi-line comment:

/* This is a multi-line comment.
This comment can span multiple lines.
*/

3. Preprocessor directives: These are not technically comments, but they are also ignored by the compiler. Preprocessor directives start with a hash symbol (#) and are used to control the compilation process. For example, the following is a preprocessor directive:

#define MAX_VALUE 100

4. Conditional compilation: This is a feature of the C preprocessor that allows you to conditionally compile code based on certain conditions. Conditional compilation directives start with a hash symbol and a keyword, such as #if, #ifdef, and #else. For example, the following is a conditional compilation directive:

#if defined(DEBUG)
// Code that is only compiled if the DEBUG macro is defined.
#endif

5. Single-line comments (C++ style): These are a type of single-line comment that was adopted from C++. They start with two slashes and are terminated by a newline character. For example, the following is a single-line comment (C++ style):

// This is a single-line comment (C++ style).

/* This is a comment. */
/* So is this
   multiline comment.
 */


struct charisma {};
void f(char/* comment */isma) {}


/* some comment /* trying to nest some other comment */ inside */


#if 0
While technically not a comment, this is also ignored by the compiler
#endif


#ifdef UNDEFINED
This is not compiled.
#if 0
Nor is this.
#endif
And this still is not compiled.
#endif


#if 0	 
This isn't valid.	 
#endif


// C++ single-line comments were adopted in the C99 standard.